The Real Risk: NAS Devices Are Actively Targeted
Synology and QNAP NAS devices have been specifically targeted by ransomware groups. In 2021–2022, DeadBolt ransomware infected tens of thousands of QNAP devices. Victims had years of irreplaceable photos and files encrypted, with attackers demanding Bitcoin to restore them.
Why NAS devices are targeted: They hold years of irreplaceable files, are often internet-exposed via port forwarding, firmware updates are frequently ignored, and owners don't treat them as security-critical devices.
How NAS Devices Get Hacked
Internet Exposure
When you open ports for remote access, your NAS admin panel becomes visible to the entire internet. Automated scanners find it within hours.
Default Credentials
Many NAS devices ship with admin/admin or blank passwords. Combined with internet exposure, this is instant compromise.
Outdated Firmware
NAS firmware patches critical vulnerabilities. Most ransomware attacks exploit already-patched vulnerabilities on unupdated devices.
Lateral Movement
A compromised smart device on the same network segment can pivot to your NAS through local network access.
How to Secure Your NAS — 6-Step Checklist
Never expose it directly to the internet
Don't port-forward your NAS admin panel. Use a VPN or Tailscale for remote access instead.
Change default credentials immediately
Set a strong unique admin password. Disable the default "admin" account and create a new named admin account.
Enable automatic firmware updates
Both Synology DSM and QNAP QTS support auto security updates. Enable them — most ransomware exploits patched vulnerabilities.
Enable two-factor authentication
Both Synology and QNAP support authenticator apps. Stolen passwords can't log in without the second factor.
Keep NAS on your main trusted network
Separate from IoT/smart devices. A compromised smart TV on a guest network can't reach your NAS.
Follow the 3-2-1 backup rule
3 copies, 2 different media types, 1 offsite (cloud or external drive elsewhere). Your NAS is storage, not a backup by itself.
Remote Access the Right Way
Use Tailscale or your router's VPN server to access your NAS remotely — full access with zero ports exposed to the internet. Free for personal use, takes 15 minutes to set up.