Synology's Ransomware Wake-Up Call: What You Need to Know

Emily Davis · 2026-11-03

Synology is raising the alarm. The company is urging customers to update the DiskStation Manager (DSM) software that powers its Network Attached Storage (NAS) devices. Why? Because ransomware attacks are actively exploiting a vulnerability that was patched back in December 2024. If you're running an outdated version of DSM, you're leaving the door wide open for attackers. ### The Attacks Are Real—and They're Costly According to Synology, threat actors are targeting devices with outdated DSM versions. "These attacks aim to encrypt data and extort ransom," the company said in a statement. That's a nightmare scenario for anyone who relies on their NAS for backups, file storage, or media servers. Imagine waking up to find all your family photos, work documents, and important records locked behind a demand for payment. It's not just an inconvenience—it's a violation of your digital life. ### Why Patching Matters More Than Ever The vulnerability was patched in December 2024, which means the fix has been available for months. Yet many users haven't updated their devices. Why? Maybe they forgot, maybe they didn't know, or maybe they assumed they were safe. But here's the thing: attackers count on that complacency. They scan for unpatched devices and strike when you least expect it. ### How to Protect Your NAS So what can you do? First, update your DSM software immediately. Synology releases regular updates, and installing them is your best defense. Second, enable automatic updates if you haven't already—it takes the guesswork out of security. Third, back up your data regularly, ideally to an offsite location or cloud service. Ransomware can't hold you hostage if you have a recent backup. Here's a quick checklist to keep your NAS safe: - Update DSM to the latest version. - Turn on automatic updates. - Use strong, unique passwords for your NAS accounts. - Enable two-factor authentication where possible. - Regularly back up critical data to an external drive or cloud. ### The Bigger Picture This isn't just about Synology. It's a reminder that any internet-connected device needs regular updates. Whether it's your router, smart thermostat, or NAS, leaving old software running is like leaving your front door unlocked. Attackers are always looking for the easiest way in. Synology deserves credit for quickly patching the flaw and warning users. But the responsibility also falls on us as users to stay vigilant. Don't wait for a ransomware attack to take your data hostage. Take action today—update your DSM, check your backups, and make sure your digital life is secure. Remember, in the world of cybersecurity, an ounce of prevention is worth a pound of cure. And in this case, that pound could be your priceless data.