Ransomware gang has managed to ‘earn’ $260,000 in five days using 7-Zip open-source file archiver utility. Many unfortunate victims decided to pay the ransom of 0.01 Bitcoins (around $550) to receive the password that would unlock their files. Some 50 victims have been lucky to have been helped by security researcher Jack Cable to recover their files without a password due to a bug in 7Zip. Those lucky QNAP NAS owners that have not yet been hit by the attackers are advised to implement the offered updates to stymie these attacks.
Source: https://www.helpnetsecurity.com/2021/04/26/qnap-nas-ransomware/