Operating system updates tend to get the most attention, but a significant share of security vulnerabilities actually live in third-party applications running alongside the operating system. Effective third party patch management, such as the one offered through ConnectWise, has become just as important as core system updates, since attackers frequently target outdated versions of common business software rather than the operating system itself.
Maintain a Complete Application Inventory
Patching software that isn’t tracked is impossible, so the foundation of good patch management starts with a complete, current inventory of every application running across the organization. Without that visibility, gaps inevitably form, often in exactly the applications least likely to get manual attention. Smaller, less visible applications are frequently the ones attackers target precisely because they’re overlooked.
Prioritize Based on Risk, Not Just Availability
Not every available update carries the same urgency. Prioritizing patches based on the severity of the vulnerability they address, rather than simply working through updates in whatever order they appear, focuses limited IT time where it actually matters most. A clear prioritization framework also makes it easier to justify patching decisions during a compliance review.
Automate Patch Deployment Where Possible
Manually deploying patches across a large number of devices and applications is slow and prone to gaps. Automated deployment tools apply patches consistently across the fleet, closing the window of exposure far faster than a manual rollout ever could. That speed advantage compounds significantly across an organization with hundreds or thousands of endpoints.
Test Patches Before Widespread Deployment
Occasionally a patch introduces its own compatibility issues, which is why testing updates on a small subset of devices before a full rollout helps catch problems before they affect the entire organization. A brief testing phase is a small investment compared to the disruption of a bad patch affecting every device at once.
Monitor for Missed or Failed Updates
A patch that fails to install silently is arguably worse than one that was never attempted, since it creates a false sense of security. Ongoing monitoring catches these failures so they can be addressed before they become an actual vulnerability. Regular verification closes the gap between assuming a patch succeeded and confirming it actually did.
Document and Review Patch Cycles Regularly
Keeping a clear record of what’s been patched, and when, supports both compliance requirements and internal accountability, while regular review of the patching process itself helps identify recurring gaps or bottlenecks worth addressing. That documentation also proves valuable if a security incident ever requires reconstructing a timeline after the fact.
Third-party applications are frequently the weakest link in an organization’s overall security posture, largely because they don’t receive the same automatic attention that operating systems do. Building a deliberate, consistent patch management process around them closes a gap that attackers actively look to exploit. A little consistent attention to this often-overlooked area goes a long way toward reducing overall risk.
