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US Offers $10 Million Reward for Russian Hacker Group UNC5792

ID: 11b637d2-8976-5095-811d-e1bf37584776

STIX ID: report--11b637d2-8976-5095-811d-e1bf37584776

Feed Name: securityonline.info

Threat Score
88/100

Date Published: 2026-06-27

Date Updated: 2026-06-27

Author: Do Son

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The U.S. government and security partners have linked UNC5792 (tied to the FSB Border Guards) and UNC4221 (linked to Russian military services) to widespread phishing and account-takeover operations against Signal and WhatsApp—abusing device-linking and social engineering to read private messages and compromise thousands of high-value targets; FBI/CISA advisories and a $10M Rewards for Justice offer have been issued and users are urged to remove unknown linked devices and protect recovery keys.

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