Developing a patch management policy

Developing a patch management policy strengthens an organization's cybersecurity posture. Organizations can reduce the risk of security breaches and protect their valuable assets and data by establishing clear procedures for identifying, prioritizing, testing, deploying, and monitoring patches.

Understanding patch management

IBM describes patch management as “the process of applying vendor-issued updates to close security vulnerabilities and optimize the performance of software and devices.” It is also “considered a part of vulnerability management.”

Neglecting patch management can expose organizations to cyberattacks, data breaches, and system failures. As IBM explains, “patch management is about balancing cybersecurity with the business's operational needs. Hackers can exploit vulnerabilities in a company's IT environment to launch cyberattacks and spread malware. Vendors release updates, called "patches," to fix these vulnerabilities. However, the patching process can interrupt workflows and create downtime for the business. Patch management aims to minimize that downtime by streamlining patch deployment.”

By ensuring the timely and efficient application of security patches, organizations can reduce their attack surface while maintaining operational continuity.

Go deeper:

• What is patch management?
• Software updates to prevent cyberattacks

What is a patch management policy?

A patch management policy is a set of guidelines, procedures, and protocols established by an organization to identify, acquire, test, and deploy software patches across its IT infrastructure.

The goal of a patch management policy is to ensure that systems, applications, and devices are kept up-to-date with the latest security patches and updates to mitigate vulnerabilities and enhance overall system security and performance.

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Key components of a patch management policy typically include

A patch management policy should provide a structured framework for identifying, testing, deploying, and monitoring software updates across an organization's IT environment. According to the study ‘Software Security Patch Management - A Systematic Literature Review of Challenges, Approaches, Tools and Practices’, effective patch management involves both technical and organizational processes that work together to reduce security risks while maintaining operational continuity. The authors note that patch management is a “socio-technical process,” meaning it requires coordination between people, systems, and organizational procedures. The components of the policy include:

• Asset identification and inventory management: Maintaining an up-to-date inventory of systems, devices, applications, and software within the organization.
• Vulnerability identification and assessment: Identifying vulnerabilities and determining which systems are affected.
• Risk assessment and patch prioritization: Prioritizing patches based on vulnerability severity, exploitability, and business impact.
• Patch sourcing and acquisition: Monitoring vendor advisories and obtaining patches from trusted sources.
• Patch testing and validation: Testing patches in a controlled environment before deployment to minimize compatibility and operational issues.
• Patch deployment procedures: Defining how patches will be deployed, including timelines, maintenance windows, automation, and emergency patching protocols.
• Roles and responsibilities: Clearly outlining responsibilities for IT teams, security personnel, and other stakeholders involved in the patch management process.
• Change management and communication: Coordinating patch-related activities and communicating planned updates or downtime across the organization.
• Backup and rollback procedures: Establishing recovery mechanisms in case a patch causes system failures or disruptions.
• Verification and monitoring: Confirming that patches were successfully installed and monitoring systems for post-deployment issues.
• Documentation and reporting: Maintaining records of patch deployments, exceptions, and compliance activities for auditing and governance purposes.
• Continuous review and improvement: Regularly evaluating the effectiveness of the patch management process and updating policies as threats evolve.
  
  

What does a patch management policy cover?

A patch management policy covers patching for a wide range of assets. Examples of these include:

• Operating systems
• Software
• Applications
• Network equipment

The benefits of a patch management policy

Implementing a patch management policy provides several key benefits. According to IBM, a patch management policy helps organisations balance cybersecurity needs with business operations by ensuring vulnerabilities are addressed efficiently while minimizing downtime. Some of the key benefits include:

Improved cybersecurity

Regular patching helps close security gaps that cybercriminals could exploit to launch attacks, spread malware, or gain unauthorized access to systems.

Reduced risk of data breaches

Applying security patches promptly lowers the likelihood of sensitive data being exposed through known vulnerabilities.

Minimized system downtime

A structured patch management process streamlines patch deployment, helping organizations reduce disruptions to daily operations.

Enhanced system performance and stability

Many patches include bug fixes and performance improvements that help systems run more efficiently and reliably.

Better regulatory compliance

Patch management policies support compliance with cybersecurity and data protection regulations by demonstrating proactive security practices.

Improved operational efficiency

Standardized patching procedures help IT teams manage updates more consistently and efficiently across the organization.

Faster response to emerging threats

A formal policy ensures organizations can quickly identify, prioritize, and deploy critical patches when new vulnerabilities are discovered.

Reduced financial losses

Preventing cyberattacks, ransomware infections, and system failures can help organizations avoid costly remediation expenses, legal penalties, and reputational damage.

Support for business continuity

By keeping systems secure and operational, patch management helps organisations maintain essential services and reduce the risk of major disruptions.

How to create an effective patch management policy

Successful patch management policies are comprehensive and include details about a variety of patching aspects in an IT environment. Follow these steps when creating a patch management policy for your organization:

Choose a patch management software

Using specific software designed for patch management is an efficient way to handle patch management. Find the best-rated patch management solutions based on reviews given by actual users.

Document your asset inventory

Compile a comprehensive inventory list of the IT infrastructure assets that require consistent patching and updates. This practice will boost efficiency in deploying relevant patches to your organization's equipment.

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Assign patch management roles

The patch management policy must designate specific end users to fulfill various roles in the patching process. These positions include policy setting, patch administration, system maintenance, patch deployment, and software-related policies.

Test your patches

Patch testing is crucial to ensure that the patches make software perform better, rather than create more issues.

Form a patch process and schedule

Patching works best when it is performed continually to ensure that systems work properly. According to research from the Ponemon Institute, 53% of companies spend more time navigating manual processes than responding to vulnerabilities. Automate the process to prepare patches more quickly. Then, plan the patch rollout so that your assets can receive them regularly.

Best practices for creating a patch management policy

There are many key points to keep in mind when creating a patch management policy. Following good practices when initially producing a policy makes the patch management process smoother. Here are a few patch management process best practices for creating an effective patch management policy:

• Keep it up-to-date: Keeping a patch management policy updated will help you to account for all parts of your system and allow all steps in the policy to run smoothly. Continuously update the status of all systems in your environment so that you can stay on top of patching and reduce the possibility of a security risk to your systems.
• Inventory: Document any hardware, software, or systems in the IT environment. Records will help you keep track of what has been updated or attended to.
• Assess risk: Regularly assess the organization's IT infrastructure to identify vulnerabilities and assess associated risks. Prioritize patches based on risk severity and criticality to focus resources on addressing the most significant threats.
• Patch testing: Testing new software patches is key to protecting your systems. In your policy, be sure to include how patch testing will be carried out, where testing will be done, and for how long before a patch is deemed safe.
• Apply patches: After all the preparation steps have been completed, you should also include in your policy how to start implementing patches in your IT environment. An efficient way to apply patches is to make an automated schedule detailing when and how patches will be applied.

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FAQS

How often should patches be deployed?

The frequency of patch deployment depends on factors such as the criticality of systems, the risk level associated with vulnerabilities, and regulatory requirements. According to LinkedIn IT services, “Monthly is a good option for patches that are not urgent or have a low risk of exploitation; it allows for advanced scheduling and testing. Weekly is a good option for moderate or high importance patches with medium risk of exploitation; it reduces the window of exposure for vulnerabilities. As soon as possible is a good policy for critical patches with high risk of exploitation; it minimizes the risk of cyberattacks, but may also cause disruption or compatibility issues.”

What are the risks of not having a patch management policy?

Organizations risk falling behind on critical security updates without a patch management policy, leaving systems vulnerable to cyber threats such as malware, ransomware, and data breaches. Additionally, non-compliance with regulatory requirements could result in legal and financial consequences.

What tools can organizations use to automate patch management processes?

Various patch management tools are available to automate patch deployment, monitoring, and reporting processes. Examples include Microsoft WSUS (Windows Server Update Services), SCCM (System Center Configuration Manager), and third-party solutions like Ivanti Patch Management and SolarWinds Patch Manager.