APT28
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TRENDING TOPICS MAR 10, 2026 APT28 Revives Espionage Operations with Custom Covenant Variant and Dual-Implant Toolkit ESET researchers are reporting that the Russian state-linked threat group APT28 (also known as Fancy Bear, Sednit, Forest Blizzard, and Strontium) has resumed advanced cyber-espionage operations using a customized version of the open-source Covenant