'Update available. Install now or later?' Most of us tap 'later' almost automatically. The update will take time, need a restart, and maybe change something we got used to. But this week offered several reminders that this tap is one of the most important security decisions we make.
Start with what an update does. All software, from your phone's operating system to your business website, is written by people and contains mistakes. Some are vulnerabilities: ways an attacker can make software do something it should not, such as run malicious code or expose data. When a flaw is found, the vendor fixes it and ships an update. Until you install it, the flaw stays open on your device.
Here is the key part: the most dangerous moment is actually after the update is released. Once a vendor publishes a fix, attackers can compare old and new versions, understand exactly what was fixed, and work out how to exploit those who have not updated. Recently, for example, attackers were reported probing for vulnerable WordPress sites within hours of a fix for a core flaw. And Synology, which makes home and business network drives, warned customers of a wave of ransomware attacks on devices that had not been updated.
AI is speeding up the whole process. OpenAI this week published research in which AI agents found 948 vulnerabilities in the Linux kernel and built a working exploit for each, in a single run. The company is working with Linux maintainers on fixes, and within ten days 61 were patched. The implication is simple: flaws will be found at an increasing pace, by both defenders and attackers, and the time you have to install an update is shrinking.
What to do? Turn on automatic updates on your phone, computer and browser. If you have a WordPress site, make sure it updates automatically or that whoever manages it does. If you have a network drive, router or security cameras, check the admin interface once a month for updates. And old devices the vendor no longer updates? Consider replacing them, because every new flaw in them will stay open forever.
