Security News Mandiant details how ShinyHunters abuse SSO to steal cloud data BleepingComputer Daniel Bender 31 Jan 2026 Mandiant says a wave of recent ShinyHunters SaaS data-theft attacks is being fueled by targeted voice phishing (vishing) attacks and company-branded phishing sites that steal single sign-on (SSO) credentials and multi-factor authentication (MFA) codes.