QNAP Systems controversies
Controversies tied to this brand in public sources. A listing is not a finding of fault.
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2022
DeadBolt ransomware
DeadBolt ransomware affected some QNAP NAS devices in January 2022, with additional attacks reported in March and May. The incidents reinforced concerns about the security of internet-exposed storage appliances.
2021
Critical NAS vulnerabilities and remediation
Security researchers reported vulnerabilities in QNAP NAS devices that could permit remote command execution, arbitrary file creation, or other unauthorized actions. Reporting described delayed remediation for some systems and later firmware updates covering newer and older devices.
2021
Qlocker ransomware
The Qlocker campaign targeted QNAP NAS devices and compressed files into password-protected 7z archives. Victims were directed to an onion service and asked to pay bitcoin to obtain the password needed for recovery.