A zero-day exploit targets a software flaw that the vendor doesn’t know about yet. The name comes from the fact that developers have had exactly zero days to fix it. No patch exists. No security update is available. Your antivirus software isn’t looking for it because nobody knows it’s there.
An unpatched endpoint is any device connected to your network—laptop, desktop, server, mobile device—that’s missing critical security updates. It could be running outdated software, an old operating system version, or applications with known vulnerabilities that vendors have already fixed.
Most patch management audits check whether you have documentation. They verify you have policies, procedures, and regular scanning schedules. They confirm you’re generating reports.
The industry has spent decades trying to create clean distinctions. “Patches are small and targeted. Updates are comprehensive and add features.” Sounds logical. Doesn’t reflect reality.
We are excited to share that Action1 ranked #4 fastest-growing cybersecurity company, #9 in the Software & Services industry, and #16 overall on the 2025 Deloitte Technology Fast 500™ among the fastest-growing tech companies in North America.
In this guide, we explain how to upgrade your Linux system using the Terminal command line, GUI-based updaters, or Action1’s autonomous endpoint management platform.
In this issue: November 2025 Patch Tuesday highlights, actively exploited vulnerabilities in Google Chrome, Mozilla Firefox, Android, Apple, WordPress, Post SMTP, Dolby, Watchguard Firebox, Cisco, SonicWall, and Gladinet CentreStack.
Managing mixed OS environments just got simpler, safer, and faster. With this update, Action1 delivers unified autonomous endpoint management and patching across Windows, macOS, and Linux from a single user-friendly platform, purpose-built for enterprise IT and MSSPs who need unified management at scale.
Action1 named G2 Fall 2025 Leader for Patch & Endpoint Management, Momentum Leader, with 172 badges incl. Best Usability & Best ROI; Inc. 5000 fastest-growing software company.
When a group of thieves recently stole gold and jewels from the Louvre in Paris, it left the world stunned. This was the Louvre, the fortress of art and history, protected by layers of surveillance, guards, and technology worth millions. Yet a small, organized team found a forgotten weakness: an upper-floor window that wasn’t as secure as the rest.
At Action1, we’re always looking for...
If there have been two clear effects to come out of the last five years of information security, it’s that costs have gone up rapidly, and the budgets have not, or at least not anywhere near a commensurate rate.
The end of Windows 10 support has been an IT and security priority for a long time. But despite ample warning ant time to plan, the passing of the EOL support deadline earlier this month left millions of machines without protection.
Unofficial methods to obtain or install ESU updates are not legitimate, and more importantly, they are not reliable. They may appear to work at first, but they put the system in a precarious state where updates may be partial, corrupted, or discontinued without warning.
With Windows 10 officially reaching...
Windows Update for Business, also known as Windows Update client policies, has been a go-to update management tool for many years, allowing IT administrators to distribute Microsoft updates across their environments.
In this issue: October 2025 Patch Tuesday highlights, actively exploited vulnerabilities in Google Chrome, Figma, Unity, Cisco, Oracle, OpenSSL, and Apple.
We’re proud to share that Action1 has been recognized in the Expert Insights Cybersecurity Excellence Awards—Fall 2025 as an IT Management Leader, listed in the Top 10 Patch Management Software solutions for business.
To mark Cybersecurity Awareness Month, Action1 is doubling endpoint coverage for all customers throughout October, including free-tier and paid-tier users, at no cost. The idea behind this initiative is to enable you to protect twice as many endpoints without increasing your budget, detect and patch vulnerabilities faster across your environment, and of course, eliminate common security gaps that leave your organization exposed to cyberattacks.
With security landscapes shifting like the surface of the ocean nowadays, IT and security teams are constantly looking for smarter ways to manage endpoint alerts without being buried under a mountain of notifications. Real-time visibility into security events is crucial, but so is the ability to act on that visibility efficiently.