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291 signals for Criminal+Health+Cyber+Military · Mali
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Introduction Mandiant has identified an expansion in threat activity that uses tactics, techniques, and procedures (TTPs) consistent with prior ShinyHunters-branded extortion operations. These operations primarily leverage sophisticated voice phishing (vishing) and victim-branded credential harvesting sites to gain initial access to corporate environments by obtaining single sign-on (SSO) credentials and multi-factor authentication (MFA) codes. Once inside, the threat actors target cloud-based software-as-a-service (SaaS) applications to exfiltrate sensitive data and internal communications for use in subsequent extortion demands.