Since its emergence in November, the BlackCat ransomware group has racked up at least 60 victims worldwide.
Researchers observed a "very messy attack" on a regional U.S. government agency where attackers lurked in the network for at least five months before ransomware was deployed.
Ransomware attacks on local governments over the past year have resulted in various public service disturbances, from disabling jail surveillance cameras to disrupting COVID-19 vaccination appointment scheduling.
The AvosLocker ransomware-as-a-service is spread via ProxyShell exploits and spam email messages, and in some cases attackers threaten DDoS attacks during negotiations.
A Canadian man who U.S. authorities allege is part of the NetWalker ransomware operation has been extradited to the U.S.