Researchers have found a never-before-seen piece of macOS malware that combines a series of clever tradecraft to infect Macs ...
From package to postinstall payload: Inside the Mastra npm supply chain compromise by Sapphire Sleet
June 19, 2026 update: Microsoft assesses with high confidence that this activity is attributable to Sapphire Sleet, a North Korean state actor that primarily targets the financial sector. The ...
In a photo taken on June 14, 2018, students wearing Korean People's Army (KPA) uniforms sit before computer screens as they attend a class at the Mangyongdae Revolutionary School outside Pyongyang.
Microsoft has attributed a recent Mastra AI supply chain attack that compromised more than 140 npm packages to the North Korean hacking group Sapphire Sleet, also known as BlueNoroff. This attribution ...
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