This new ransomware tries to block victims from recovering by using passphrases

A new ransomware variant has been discovered with a unique feature that complicates analysis by cybersecurity experts.

The fourth variant of the HardBit Ransomware, HardBit 4.0, introduced passphrase protection, which must be applied at runtime for the ransomware to execute properly, researchers from Cybereason revealed in a new blog post.