May 29, 2026

The Gentlemen ransomware: Dissecting a self-propagating Go encryptor

In this article Pre-encryption File encryption Post-encryption Defending against The Gentlemen ransomware Microsoft Defender detections and hunting guidance Indicators of compromise Ransomware that combines robust encryption […]
April 17, 2026

Dissecting Sapphire Sleet’s macOS intrusion from lure to compromise

In this article Sapphire Sleet’s campaign lifecycle Defending against Sapphire Sleet intrusion activity Microsoft Defender detection and hunting guidance Indicators of compromise Executive summary Microsoft Threat […]