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UNC6671 Vishing Attacks Target Personal Phones to Steal SaaS Data

BACKGROUND
1 SIGNALFIRST DETECTED 7 August 2026
Narrative synthesis pending — 1 signal collected.
How the story developed
Other feeds and industry voices
1 May
Cybercrime Groups Using Vishing and SSO Abuse in Rapid SaaS Extortion Attacks

Cybersecurity researchers are warning of two cybercrime groups that are carrying out "rapid, high-impact attacks" operating almost within the confines of SaaS environments, while

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7 Sept
Fake IT Calls Target Executives in Microsoft 365 Data Theft and Extortion Attacks

Threat hunters have disclosed details of a widespread data theft and extortion threat cluster that's targeting Microsoft 365 and other software-as-a-service (SaaS) offerings

REPORT · WHAT · The Hacker NewsOPEN STORY
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