The BRICKSTORM backdoor, attributed to the suspected China-nexus threat cluster UNC5221, has been actively targeting U.S. organizations in the legal, SaaS, BPO, and technology sectors since March 2025.| blog.polyswarm.io
Hook Version 3 is an advanced Android banking trojan with ransomware, phishing, and lockscreen bypass capabilities, posing significant risks to financial institutions and enterprises. Its distribution via phishing websites and GitHub amplifies its reach, necessitating robust mobile threat defenses.| blog.polyswarm.io