https://www.bleepingcomputer.com/news/security/qnap-warns-of-new-checkmate-ransomware-targeting-nas-devices/

Network-attached storage (NAS) vendor QNAP warned customers to secure their devices against attacks using Checkmate ransomware to encrypt data.

QNAP says the attacks are focused on Internet-exposed QNAP devices with the SMB service enabled and accounts with weak passwords that can easily be cracked in brute-force attacks.