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Okta

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UNC6671 Vishing Attacks Target Personal Phones to Steal SaaS Data

Google and Mandiant attribute vishing-based SaaS data extortion attacks to UNC6671, now operating under the Redact, Pink, Helix, and Falcon brands.

Google Threat Intelligence Group and Mandiant track extortion group UNC6671, which uses vishing calls impersonating IT help desks to lure employees to adversary-in-the-middle phishing pages that capture credentials, MFA tokens, and session tokens. The group then registers adversary-controlled MFA devices, pivots through identity providers into Microsoft 365, Okta, and other SaaS applications, and runs automated Python and PowerShell exfiltration scripts. UNC6671 has rotated through extortion brands including BlackFile, Redact, Pink, Helix, and Falcon, and Google tracked over $10.6 million in Bitcoin payments between January 7 and May 12, 2026, with initial demands exceeding $3 million. The actor has hit dozens of organizations in North America, Australia, and the UK, shifting toward high-value financial and legal firms in July 2026.

The Hacker Newsupdated · 8d agofirst · 8d agoThreat actor in the wild 2 sources1

The story behind the intelligence

Cisco Talos newsletter features adversary-engagement podcast, flags AI guardrail 'safety penalty' slowing defenders, and recaps McKesson breach and PaperCut patching headlines.

The Threat Source newsletter spotlights the Beers with Talos podcast, in which researcher Azim Khodjibaev describes maintaining eight dark-web personas to identify prolific cybercriminals and support disruption efforts. Talos also argues frontier AI guardrails impose an AI 'safety penalty', citing a July 2026 incident where Hugging Face's primary cloud LLM refused to analyze forensic breach data and delayed response. Recapped headlines include ShinyHunters claiming theft of 284 million patient records from McKesson via vishing and Okta account takeover, Anthropic warning Claude users about infostealer malware, and PaperCut issuing emergency patches for chained vulnerabilities.

Cisco Talos · 12d agoIndustry

ShinyHunters claims it stole 284 million patient records from McKesson

ShinyHunters claims theft of 284 million patient records from McKesson via vishing, Okta takeover, and Salesforce/Snowflake access, demanding $55,236,150.

McKesson disclosed in an SEC filing a cybersecurity incident detected August 25, 2026, involving unauthorized access to third-party applications and data exfiltration affecting a subset of customers in its Oncology & Multispecialty and Medical-Surgical business units. ShinyHunters told BleepingComputer it entered through vishing calls to employees, used stolen credentials to take over Okta single sign-on accounts, and extracted about a terabyte of data from Salesforce and Snowflake environments over four days. The group claims 284 million database rows including names, addresses, Social Security numbers, Medicaid details, medical record numbers, and medication data, and demanded $55,236,150 with a 72-hour deadline; none of these claims have been independently verified.

Help Net Security · 16d agoData breach