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So, you've got vendors you work with, right? Whether they're providing software, services, or even just access to your systems, they're basically an extension of your own operation. But here's the thing: if one of them has a security problem, it can easily become *your* security problem. That's where vendor security due diligence comes in. It's not just a fancy term; it's about making sure the people you partner with aren't accidentally opening the door for attackers to get into your stuff. We're going to break down how to actually do this, step by step. Key Takeaways Checking out your vendors' security isn't optional anymore. A weak link in your supply chain can lead to big problems for your business, like data breaches and fines. You need a clear plan for how you'll handle vendor security. This means making it part of your overall security rules and checking if it lines up with any rules you have to follow. Before you even start working with a vendor, you need to assess their security. Look at their controls, what documents they have, and if they're following good security practices. Don't just check once. Keep an eye on vendor security over time. Look for weird activity and have a plan for what to do if something goes wrong. Use the right tools to help manage vendor risk. There are platforms and software out there designed to make this process easier and more effective. Understanding Vendor Security Due Diligence When your organization works with outside companies, whether they provide software, cloud services, or even just handle your data, you're opening up potential security risks. This is where vendor security due diligence comes in. It's basically the process of checking out these third parties to make sure they're not going to accidentally (or intentionally) cause a security problem for you. Think of it like vetting a new employee, but for companies you do business with. The Criticality of Vendor Security Due Diligence It might seem like a lot of extra work, but seriously, it's important. A security lapse from a vendor can hit your business just as hard as a direct attack. We're talking about potential data breaches, service disruptions, and damage to your reputation. Ignoring this step is like leaving your front door unlocked and hoping for the best. It's not a matter of if a vendor will have a security issue, but when, and how prepared you are to handle it. Making sure your vendors have solid security practices is a key part of your overall security strategy. It's about protecting your own assets and customer data by looking at the entire picture, including your supply chain. You can find more information on cybersecurity compliance audits to understand how regulations play a role. Defining Third-Party Risk in the Supply Chain Third-party risk, in this context, refers to the potential security vulnerabilities that arise from your relationships with external vendors and service providers. Your supply chain isn't just about physical goods anymore; it's deeply intertwined with digital services and software. When a vendor you rely on gets compromised, that risk can easily spread to your systems. This could happen through compromised software updates, shared access credentials, or even just by the vendor having access to your sensitive information. It's a complex web, and understanding where these risks lie is the first step to managing them. Real-World Impacts of Compromised Vendors We've seen this play out in the news more times than we can count. Remember those major supply chain attacks? They often start with a single, seemingly minor, vendor. The impact can be massive: Widespread Data Breaches: Sensitive customer or company data gets exposed. Service Disruptions: Critical business operations halt because a vendor's service goes down. Financial Losses: Costs associated with incident response, recovery, legal fees, and regulatory fines. Reputational Damage: Loss of customer trust, which can be incredibly hard to regain. These aren't just theoretical problems; they are real consequences that businesses have faced. For instance, a compromised software update can affect thousands of downstream organizations simultaneously, creating a domino effect of security incidents. This highlights why a proactive approach to vendor security is so necessary. The interconnected nature of modern business means that a weakness in one part of the supply chain can quickly become a weakness for many. It's no longer enough to secure your own network; you must also consider the security posture of everyone you do business with. Establishing a Vendor Security Framework Building a solid vendor security framework is like setting up the rules of the road for how your organization interacts with external partners. It's not just about checking boxes; it's about creating a structured way to manage the risks that come with relying on third parties. Without this, you're essentially leaving your digital doors open to potential threats that could originate from anywhere in your supply chain. Integrating Vendor Risk into Overall Security Governance Vendor risk shouldn't live in a silo. It needs to be a part of your broader security strategy. Think of it like this: if your company has a plan for managing internal security risks, that plan needs to extend to the vendors you work with. This means making sure that vendor security is considered in all the big security decisions and discussions. It's about making sure everyone, from the top brass down to the teams handling procurement, understands that vendor security is a shared responsibility. Define clear roles and responsibilities for managing vendor risk across different departments (e.g., IT, legal, procurement, business units). Incorporate vendor risk assessments into your existing enterprise risk management processes. Establish executive sponsorship to champion vendor security initiatives and ensure they get the necessary resources. Integrating vendor risk into your overall security governance means treating third-party risks with the same seriousness as internal threats. It requires a unified approach where security policies and procedures are consistently applied, regardless of whether the risk originates internally or externally. This integration helps ensure that vendor security doesn't become an afterthought. It becomes a standard part of how you do business, aligning with established security governance frameworks and making sure that your security posture remains strong, even when working with external partners. Aligning Vendor Security with Compliance Requirements Your organization likely has to follow a bunch of rules and regulations, whether it's industry standards or data protection laws. Your vendor security framework needs to line up with these requirements. If a vendor handles sensitive data, they need to meet the same security standards you do, or at least ones that are equivalent. This isn't just about avoiding fines; it's about protecting your customers and your reputation. You need to know what your vendors are doing to stay compliant and make sure their practices don't put you at risk of a violation. Identify all applicable compliance obligations that extend to your third-party relationships. Translate compliance requirements into specific contractual clauses for your vendors. Regularly audit or review vendor compliance documentation to verify adherence. Developing Comprehensive Vendor Security Policies Policies are the backbone of any framework. You need clear, written guidelines that outline exactly what you expect from your vendors regarding security. These policies should cover everything from data handling and access controls to incident reporting and business continuity. Having these policies in place makes it easier to communicate expectations, onboard new vendors, and hold existing ones accountable. It also provides a reference point when issues arise. Here’s a look at what a good vendor security policy might cover: Policy Area Key Requirements Data Protection Encryption standards, data handling procedures, data retention limits, data minimization. Access Control Least privilege, multi-factor authentication, regular access reviews, termination procedures. Incident Response Notification timelines, communication protocols, cooperation during investigations, post-incident reporting. Business Continuity/DR Minimum uptime requirements, testing frequency, recovery time objectives (RTOs), recovery point objectives (RPOs). Security Awareness Training Requirement for vendor staff to undergo regular security awareness training. Subcontractor Management Requirements for vendors to vet their own third parties and ensure they meet similar security standards. These policies should be living documents, reviewed and updated regularly to keep pace with evolving threats and business needs. They are a critical part of managing third-party risk effectively. Assessing Vendor Security Posture Before you let a vendor into your digital environment, you've got to check out how secure they are. It's not enough to just trust that they're doing a good job. You need to actually look at their security setup. This part is all about figuring out if their security practices are up to snuff and if they align with what you need to keep your own systems safe. Conducting Initial Vendor Risk Assessments When a new vendor comes into the picture, the first thing you should do is a basic risk assessment. This isn't a super deep dive yet, but more of a screening process. You want to get a general idea of the kind of data they'll handle, what systems they'll connect to, and what potential risks they might introduce. Think of it like a first date – you're trying to see if there's a basic compatibility before committing to anything serious. Here’s a quick way to approach it: Identify Data Sensitivity: What kind of information will the vendor access or store? Is it just public data, or does it include sensitive customer details or intellectual property? Map System Connections: How will the vendor connect to your network or systems? Direct access, API integration, or just data transfer? Review Vendor Questionnaire: Send them a standard questionnaire covering their security policies, incident response plans, and data handling procedures. This gives you a baseline. Check for Certifications: Do they have relevant certifications like SOC 2, ISO 27001, or others specific to your industry? This can be a good indicator of their commitment to security. This initial screening helps you decide if a vendor is even worth considering further. If they can't provide basic information or seem to have significant gaps from the start, it might be best to look elsewhere. It's about being proactive rather than reactive when it comes to third-party risk. Evaluating Vendor Security Controls Once a vendor passes the initial check, you need to dig a bit deeper into their actual security controls. This means looking beyond just their policies and understanding how they implement security in practice. You're trying to verify that their stated controls are actually in place and working. Key areas to examine include: Access Management: How do they control who has access to your data and systems? Do they use multi-factor authentication (MFA)? Is access granted on a least-privilege basis? Data Encryption: Is sensitive data encrypted both when it's stored (at rest) and when it's being sent (in transit)? What encryption standards do they use? Network Security: What measures do they have in place to protect their network? This could include firewalls, intrusion detection systems, and network segmentation. Physical Security: If they handle physical media or have data centers, what are their physical security measures like? Think access controls, surveillance, and environmental protections. Analyzing Vendor Compliance Documentation Compliance documentation is often a vendor's way of proving they meet certain security standards. This can include audit reports, certifications, and attestations. While these documents are important, it's crucial to analyze them critically. Scope of Audits: Understand what exactly the audit covered. Did it include the specific services or systems the vendor will provide to you? Report Dates: Are the reports recent? An outdated report might not reflect their current security posture. Identified Gaps: Did the audit identify any issues? If so, how did the vendor address them? You want to see a track record of remediation. It's also important to remember that compliance doesn't always equal security. A vendor might meet the letter of the law but still have weaknesses that could put your organization at risk. Therefore, compliance documentation should be seen as one piece of the puzzle, not the whole picture. Understanding how to report cyber risk effectively to your own executives will help justify the resources needed for this vendor assessment. Deep Dive into Vendor Security Practices When you bring a vendor into your business, you're not just signing a contract; you're potentially opening your own systems to new risks. It's not enough to just check their boxes on a form. We need to look closer at how they actually handle security day-to-day. This means digging into their processes for keeping things patched, managing vulnerabilities, and controlling who can access what. Examining Vendor Patch Management Processes Patch management is basically the process of updating software to fix security holes and bugs. If a vendor is slow to patch, they're leaving doors open for attackers. We need to know if they have a solid plan for testing and deploying these updates across their systems. It's about making sure they're not running old, vulnerable software that could be a weak link. Regularity: How often do they check for and apply patches? Testing: Do they test patches before rolling them out widely? Timeliness: What's their target window for patching critical vulnerabilities? Automation: Do they use tools to automate this process? Reviewing Vendor Vulnerability Management Programs Beyond just patching, vendors should have a program to actively find and fix security weaknesses. This involves scanning their systems, assessing the risks, and prioritizing what needs to be fixed first. It's a continuous effort, not a one-time thing. We want to see that they're proactive about finding and fixing flaws before they become a problem for us. A vendor's vulnerability management program should be a living process, not a static checklist. It needs to adapt to new threats and findings. Assessing Vendor Identity and Access Management This is all about controlling who has access to what within the vendor's environment, and by extension, what access they might have to yours. Are they using strong authentication methods? Do they follow the principle of least privilege, meaning people only have access to what they absolutely need for their job? We need to understand how they manage user accounts, permissions, and access reviews. Strong identity and access controls are a cornerstone of preventing unauthorized access. Here’s a quick look at what to consider: Authentication: Do they use multi-factor authentication (MFA)? Authorization: How are permissions assigned and managed? Access Reviews: How often do they review who has access to what? Privileged Access: How do they control and monitor accounts with elevated permissions? Offboarding: What's their process for revoking access when an employee leaves? Technical Due Diligence for Vendors When we talk about vendor security, it's not just about their policies or how they manage access. We also need to look under the hood, so to speak. This is where technical due diligence comes in. It's about verifying that the actual security measures a vendor has in place are working as intended and are robust enough to protect your data and systems. Examining Vendor Application Security Applications are often the front door for attackers. We need to know how vendors build and secure the software they provide. This includes looking at their development processes. Are they following secure coding standards? Do they perform regular code reviews? It's also about testing. Tools like SAST (Static Application Security Testing) and DAST (Dynamic Application Security Testing) can find flaws before they become problems. Understanding their approach to application security is key to preventing vulnerabilities from entering your environment. Evaluating Vendor Endpoint Security Controls Vendors often have their own networks and devices – their endpoints. What protects these? We're talking about things like antivirus software, endpoint detection and response (EDR) systems, and making sure devices are kept up-to-date with security patches. It’s also about device hardening, which means configuring them securely from the start. If a vendor's endpoints are compromised, it can create a pathway into your own systems, especially if there's a direct connection or data transfer happening. Understanding Vendor Cloud Security Configurations Many vendors operate in the cloud these days. This brings its own set of challenges. Cloud environments are dynamic, and misconfigurations are a common way attackers get in. We need to understand how vendors manage their cloud security. This includes their identity and access management in the cloud, how they secure their workloads, and their logging and monitoring practices. It's a shared responsibility model, so knowing what they are responsible for and how they're handling it is vital. A poorly configured cloud environment by a vendor can expose your sensitive information. Monitoring Vendor Security Continuously Just because you've vetted a vendor and signed them on doesn't mean the work is done. Think of it like checking your car's oil – you don't just do it once and forget about it. You need to keep an eye on things. Vendor security monitoring is all about that ongoing vigilance. It's about making sure that the security posture you agreed upon doesn't slip over time, and that new risks aren't creeping in. Implementing Vendor Security Monitoring Tools To keep tabs on your vendors, you need the right tools. These aren't just fancy gadgets; they're essential for seeing what's happening. You're looking for systems that can collect data from your vendors, or at least give you insights into their security activities. This could involve anything from checking their compliance certifications regularly to monitoring for any unusual activity on shared systems. It’s about building a continuous feedback loop. Some platforms can automate much of this, sending alerts if a vendor’s security score drops or if they fail to meet a certain standard. This helps you stay ahead of potential problems before they become major issues. Having a good vendor risk management platform can really streamline this process. Detecting Anomalous Vendor Behavior This is where the real detective work comes in. You're not just looking for outright breaches; you're looking for things that seem off. Did a vendor suddenly start accessing systems they don't normally touch? Are there unusual data transfer patterns? Maybe their system performance dipped unexpectedly, which could indicate a compromise. Detecting these anomalies often relies on having good baseline data to compare against. When something deviates from the norm, it’s a signal to investigate further. This kind of monitoring helps catch issues that might not trigger a standard security alert but still represent a risk. Establishing Vendor Incident Response Coordination What happens when something does go wrong with a vendor? You need a plan. This isn't just about what you do, but how you work with the vendor. Clear communication channels and pre-defined roles are key. Who contacts whom? What information needs to be shared immediately? How will you coordinate containment and recovery efforts? Having a joint incident response plan means you're not scrambling in the dark when a crisis hits. It ensures a faster, more organized response, minimizing the impact on your own operations and data. It’s about having a shared understanding of responsibilities and actions. Here’s a quick look at what a coordinated response might involve: Immediate Notification: The vendor informs you of a suspected or confirmed incident affecting your data or services. Information Exchange: Both parties share relevant technical details and impact assessments. Joint Containment: Coordinated efforts to isolate affected systems and prevent further spread. Remediation and Recovery: Collaborative work to fix the issue and restore services. Post-Incident Review: Analyzing what happened, how the response went, and identifying improvements. Continuous monitoring isn't just a technical task; it's a strategic imperative. It requires ongoing communication, clear expectations, and a willingness to adapt as both your environment and the threat landscape change. Ignoring this phase leaves you vulnerable to risks that can emerge long after initial due diligence is complete. Addressing Supply Chain Vulnerabilities When we talk about vendor security, it's easy to focus just on the direct relationship we have with them. But the real danger often lurks deeper, in the software and services they themselves rely on. This is where supply chain vulnerabilities come into play. Think of it like this: you trust your direct vendor, but what if that vendor uses a component from another company that has a security hole? Suddenly, that hole becomes your problem too. Identifying Third-Party Dependencies It's not enough to know who your direct vendors are. You need to map out their dependencies too. This means understanding what software libraries, open-source components, or even other services your vendors use. It sounds complicated, and honestly, it can be. But not knowing these connections leaves you exposed. A compromise in a seemingly minor component used by your vendor can cascade into a significant issue for your organization. We need to get a handle on these connections to reduce risk. Mitigating Risks from Software Libraries Software libraries, especially open-source ones, are incredibly useful. They speed up development and offer pre-built functionality. However, they can also be a major source of risk. A vulnerability in a popular library can affect thousands of applications that use it. This is why it's so important to keep track of the libraries you and your vendors are using. Tools that can scan your code and identify these dependencies are a big help. It’s about knowing what’s inside your software, not just what you built yourself. This is a key part of software supply chain security. Securing the Software Development Lifecycle Ultimately, securing the supply chain means looking at how software is built and maintained. This involves integrating security checks throughout the entire development process, not just at the end. It means developers are aware of secure coding practices and that any third-party code is vetted. When vendors have strong processes for developing and updating their software, it significantly reduces the chances of a vulnerability being introduced. This proactive approach is far more effective than trying to fix things after an attack has already happened. It’s about building security in from the start, which is a core principle in modern security frameworks. The interconnected nature of modern technology means that a vulnerability in one place can quickly spread. Understanding and managing these third-party dependencies is no longer optional; it's a fundamental part of protecting your organization from widespread attacks. We need to treat every link in the chain with the same level of scrutiny. Leveraging Tools and Technologies Okay, so we've talked a lot about the 'what' and 'why' of vendor security. Now, let's get into the 'how.' Trying to manage vendor security manually is like trying to herd cats – it's chaotic and frankly, not very effective. That's where tools and technologies come in. They're not magic bullets, but they sure do make the job a whole lot more manageable. Utilizing Vendor Risk Management Platforms These platforms are designed to centralize and automate a lot of the heavy lifting involved in vendor security. Think of them as your central command center for all things vendor risk. They help you keep track of your vendors, manage assessments, track remediation efforts, and even monitor for new risks that pop up. It's about getting a clear picture of your entire vendor ecosystem in one place. This helps you avoid situations where you're relying on outdated spreadsheets or just hoping for the best. A good platform can really streamline the process of assessing vendor security posture. Employing Software Composition Analysis This one is super important, especially with how much we rely on software these days. Software Composition Analysis (SCA) tools look at the code that makes up your software, including all the open-source libraries and third-party components. Why is this a big deal? Because a vulnerability in one of those tiny components can open the door for attackers. SCA tools help you identify what's actually in your software, flag any known vulnerabilities, and manage your software supply chain risk. It's about knowing what you're running and making sure it's not secretly harboring a problem. Integrating Security Monitoring Solutions Once you've done your due diligence and brought a vendor on board, the job isn't over. Things change, threats evolve, and vendors themselves can have issues. Integrating security monitoring solutions allows you to keep an eye on your vendors' security performance over time. This can involve monitoring for unusual network activity, checking for compliance drift, or even receiving alerts if a vendor experiences a breach. It's about continuous oversight, not just a one-time check. This proactive approach helps you catch problems early, before they become major incidents. It's a key part of understanding regulatory cyber requirements because many regulations demand ongoing monitoring. Best Practices for Vendor Security Due Diligence When you're bringing on new vendors, especially those who will handle your data or connect to your systems, you can't just take their word for it. Doing your homework upfront and keeping an eye on things afterward is key. It's about building a solid process that helps you avoid a lot of headaches down the road. Maintaining Accurate Software Inventories Knowing exactly what software you're using, and what your vendors are using, is a big part of this. If you don't know what's out there, how can you protect it? This means keeping a detailed list of all the applications, libraries, and systems involved, both internally and within your vendor's environment. Think of it like a detailed parts list for a car – you need to know every component to fix it properly. Keep a running tally of all software assets. Understand the dependencies between different software components. Regularly update your inventory as new software is added or removed. Applying Zero Trust Principles to Vendors The old way of thinking was that once something was inside your network, it was safe. That's just not true anymore. With vendors, you need to assume that no connection or system can be implicitly trusted. Every request, every access attempt, needs to be verified. This means: Strictly limiting access: Only give vendors the minimum access they absolutely need to do their job. No more, no less. Continuous verification: Don't just verify them once. Keep checking their identity and authorization regularly. Micro-segmentation: If a vendor's system is compromised, you want to make sure that compromise can't easily spread to your other systems. Breaking things down into smaller, isolated zones helps with this. The idea of a trusted network perimeter is fading fast. Instead, focus on verifying every user and device, regardless of location. This 'never trust, always verify' approach is critical when dealing with external partners. Validating All Vendor Updates and Integrations Vendors often push updates or new integrations. While these are usually meant to improve things, they can also introduce new risks. You need a process to check these changes before they go live in your environment. This isn't just about checking for bugs; it's about looking for any unexpected security implications. Test updates in a sandbox environment first. Review integration points for security weaknesses. Have a rollback plan in case something goes wrong. Navigating the Regulatory Landscape Staying compliant with the ever-changing web of regulations is a big part of making sure your vendors are secure. It's not just about avoiding fines, though that's definitely a good reason. It's about protecting sensitive data and making sure your business operations aren't disrupted by a vendor's non-compliance. Understanding Compliance Obligations for Vendors Different industries and regions have their own specific rules about data protection and security. For example, if you handle personal data of EU residents, you'll need to be aware of GDPR. In the US, healthcare providers have HIPAA to worry about, and anyone processing credit card payments has PCI DSS. Your vendors, especially those who access or process your sensitive information, must also meet these requirements. It's your responsibility to know what applies to your business and to verify that your vendors are keeping up. GDPR: Focuses on data privacy and protection for individuals in the European Union. HIPAA: Governs the protection of sensitive patient health information in the United States. PCI DSS: A set of security standards designed to ensure companies that accept, process, store or transmit credit card information maintain a secure environment. CCPA/CPRA: California's consumer privacy laws that give consumers more control over their personal information. Adhering to Data Protection Laws Data protection laws are becoming stricter worldwide. These laws often dictate how personal data can be collected, stored, processed, and shared. When you work with vendors, you're essentially extending your data processing activities to them. This means you need to ensure their practices align with laws like GDPR, CCPA, or others relevant to your operations. This often involves contractual clauses that clearly define data handling responsibilities and require vendors to implement specific security measures. It's important to remember that compliance with data protection laws isn't a one-time check. It requires ongoing attention and verification, especially as regulations evolve and vendor relationships change. Meeting Industry-Specific Security Standards Beyond general data protection laws, many industries have their own security standards. For instance, the financial sector might adhere to NIST frameworks or specific banking regulations. Critical infrastructure operators face stringent requirements to maintain operational resilience. When assessing vendors, look for certifications or attestations that demonstrate their adherence to these industry-specific standards. This could include SOC 2 reports, ISO 27001 certifications, or other relevant industry benchmarks. These standards provide a structured way to evaluate a vendor's security posture and ensure they meet the expected level of protection for your specific context. Wrapping Up Vendor SecuritySo, we've gone over a lot of ground about checking out your vendors before you bring them on board. It’s not just about making sure they can do the job, but also about keeping your own systems and data safe. Think about it like inviting someone into your house – you wouldn't just let anyone in without a second thought, right? It’s kind of the same with your business. Doing your homework on vendor security might seem like a chore, but honestly, it’s way better than dealing with a breach down the line. Keeping an eye on things, asking the right questions, and having clear agreements in place can save a ton of headaches and money later on. It’s all about building a more secure setup, one vendor at a time. Frequently Asked Questions Why is checking on vendors so important for security?Think of it like this: even if your own house is super secure, if you let someone with a bad lock on their door into your neighborhood, they could still be a weak link. Vendors are like that. If a vendor that handles your data or connects to your systems gets hacked, the attackers can use that connection to get to you. It's all about protecting your digital 'neighborhood'. What does 'third-party risk' mean?Third-party risk is just a fancy way of saying the danger that comes from working with other companies or services. If you use a cloud storage company, a software provider, or even a cleaning service that has access to your building, they all represent a 'third party' you rely on. If they mess up their security, it can cause problems for you. Can a vendor I trust actually get hacked?Absolutely. No company is completely immune to being hacked. Even big, well-known companies can be targeted. Attackers are clever and always looking for the easiest way in, and sometimes that's through a vendor's systems instead of going straight for the main target. Trust is important, but it shouldn't be the only thing you rely on for security. What's the worst that can happen if a vendor gets hacked?It can be pretty bad. Imagine a hacker getting into a company that sends out software updates for many businesses. They could sneak a bad update to everyone, causing a huge problem. This can lead to stolen customer information, big fines from the government, people losing faith in the company, and a lot of expensive work to fix everything. How can I check if a vendor is secure?You can start by asking them questions about their security practices. Do they keep their software updated? How do they control who can access their systems? Do they have plans for what to do if something bad happens? You can also look at documents they might provide, like security reports or certifications, to see how they measure up. What's 'Zero Trust' and how does it apply to vendors?Zero Trust is a security idea that means you don't automatically trust anyone or anything, even if they are already inside your network or are a known vendor. You always check and verify. For vendors, it means you don't just give them full access. You give them only the specific access they need to do their job, and you keep checking to make sure they're still behaving safely. Is it important to know all the software my vendors use?Yes, very! Think of it like knowing all the ingredients in a meal. If one ingredient is bad, the whole meal can be ruined. If your vendor uses a piece of software that has a security hole, that hole could become a way for attackers to get to your information. Knowing what's inside helps you spot potential problems. What happens if a vendor has a security problem after I've already started working with them?That's why ongoing checking is crucial. You need to keep an eye on your vendors even after you've signed them up. This means watching for any strange activity from their systems, having a plan for how you'll both react if there's a security incident, and making sure they are still following good security rules. It's like regularly checking the locks, not just installing them once.

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