Global, September 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 287,268 devices and the distribution of 26 malware families
• 89,280 leaked employee and 16,065,909 customer accounts by sector and domain
• 2,407,227 domains seen in leaks and their extension classes
• 850 ransomware incidents, the most active groups and the sectors they targeted