CISA Alert CodeAA23-353A: ALPHV BlackCat

**Executive Summary:** The FBI, CISA, and HHS released a joint advisory on the ALPHV/BlackCat ransomware detailing indicators of compromise, observed TTPs, and the Sphynx 2.0 update which enables encryption of Windows, Linux, and VMware instances; the advisory also notes increased targeting of the healthcare sector, victim-specific extortion emails, and provides mitigation recommendations for critical infrastructure organizations.