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Sekoia uncovers APT29 mobile campaign Poisoned Source

Original: French cybersecurity firm Sekoia has uncovered a web-based campaign dubbed Poisoned Source, tracked since mid-October 20

French cybersecurity firm Sekoia has uncovered a web-based campaign dubbed Poisoned Source, tracked since mid-October and attributed to the Russian-linked threat group APT29. The operation targeted iOS and Android users by compromising legitimate websites and injecting malicious code, a technique observers note as an evolution toward mobile-focused espionage. Security researchers are sharing technical indicators and warning organizations to review exposed sites.

Why now: Attribution to APT29 and the targeting of mobile users make the disclosure notable for the security community.

SekoiaAPT29

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Evidence

• French cybersecurity firm Sekoia has uncovered a web-based campaign dubbed Poisoned Source, tracked since mid-October 2026 and linked to the APT29 threat group. The operation targeted iOS and Android users by compromising legitimate websites and injecting malicious code into… · hacksgr · 1

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