Global, May 2026: infostealer infections, leaked accounts and ransomware incidents

An assessment based on Dark Radar intelligence data. Infected devices, leaked corporate and customer accounts, active malware families and the targets of ransomware groups in a single report.

Why this report matters

Infostealer infections are often the first step in account takeover and ransomware attacks. The report sets out the infections and leaked accounts observed during the month by sector and domain, so security teams can decide which accounts and systems to address first.

What the report covers

• Infostealers on 254,885 devices and the distribution of 19 malware families
• 60,642 leaked employee and 12,359,291 customer accounts by sector and domain
• 1,938,604 domains seen in leaks and their extension classes
• 787 ransomware incidents, the most active groups and the sectors they targeted