Have a QNAP NAS? Be sure to update it

Radek Bezvoda
1 min readMay 8, 2021

QNAP NAS devices are hugely popular among both home and office users. It offers a wide range of services from media streaming to backup options. In Hybrid backup client in particular, a critical security vulnerability was discovered that might allow attackers to encrypt your data (ransomware kind of attacks).

What to do? If you are affected by the ransomware, be sure to act according to the recommended steps.

Otherwise, it’s highly recommended to update your system fully. Log in to your administration, apply possible system firmware update (it may require a restart before upgrade installation), then don’t forget to install update for the applications too. The ransomware attack happens through Hybrid backup application, so it’s necessary to have it updated too.

It’s also a good practice to set up both system firmware and application upgrade to happen automatically. You will find the corresponding settings on the firmware upgrade page and in the application updater.

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