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Tag: sapphire sleet

3 articles

Cluttered coding workspace with laptop, notes, and coffee cups, with a blurred world map in the background.

Amazon Ties npm Hijack to North Korea's Sapphire Sleet

In a shocking supply-chain hijack, North Korea's Sapphire Sleet group compromised over 2 billion weekly downloads of popular npm packages, including debug and chalk, in a brazen attack tied to multiple other malicious campaigns. Amazon Threat Intelligence has linked this September 2025 incident to a string of attacks dating back to March 2025.

Analyst 207
Cluttered tech workspace with laptop and papers, background blurred.

Microsoft Links North Korea to Mastra AI Supply Chain Compromise

Microsoft has uncovered a massive supply chain attack on the npm registry, where over 140 packages were compromised, and has linked the operation with high confidence to Sapphire Sleet, a notorious North Korean state actor known for targeting the financial sector. This large-scale attack highlights the growing threat of North Korean hacking groups.

Analyst 207
Financial sector setting with technology integration and cityscape in background.

Microsoft attributes Mastra AI supply chain attack to North Korean hackers Sapphire Sleet

Microsoft warns that a recent supply chain attack on the Mastra AI npm environment was carried out by Sapphire Sleet, a notorious North Korean hacking group known for targeting the financial sector. This latest incident is part of a larger pattern of attacks that exploit open-source distribution channels.

Analyst 207