June 6, 2025

Meet the Deputy CISOs who help shape Microsoft’s approach to cybersecurity: Part 3

Microsoft launched its Cybersecurity Governance Council in 2024, and with it, named a group of deputy chief information security officers that ensure comprehensive oversight of the company’s […]
May 27, 2025

New Russia-affiliated actor Void Blizzard targets critical sectors for espionage

Executive summary: Void Blizzard is a new threat actor Microsoft Threat Intelligence has observed conducting espionage operations primarily targeting organizations that are important to Russian government […]
May 22, 2025

Lumma Stealer: Breaking down the delivery techniques and capabilities of a prolific infostealer

Over the past year, Microsoft observed the persistent growth and operational sophistication of Lumma Stealer, an infostealer malware used by multiple financially motivated threat actors to […]