Google says hackers are calling financial firm employees to hack and extort victims

Google researchers report multiple criminal groups (Falcon, Helix, Pink, Redact) — possibly under an umbrella tracked as UNC6671 — conducting vishing campaigns against large U.S. financial, legal, and enterprise targets to steal credentials/MFA and extort victims via public leak sites; observed ransom demands are typically $750k–$3M and one associated crypto wallet received roughly $10M.