September's Ransomware Index: The Victims One Group Tried to Hide
September: 956 listings, 79 groups. One group redacted its victims' names — and its own later posts gave 14 of them away. Plus Clop's 25-organisation set.
Read BriefingThe SINON Ransomware Index, August 2026
1,223 leak-site listings across 82 ransomware groups in August 2026. Qilin and The Gentlemen finished two posts apart, five crews accounted for 42% of the month, and three of the numbers people expect from a monthly index are missing on purpose.
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Ransomware Leak Site Monitoring: How to Know Before Your Name Appears
Ransomware groups publish victims on leak sites days before the press reports them. Here is how leak site monitoring works, what it catches, and why the gap is the most useful thing about it.
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How Initial Access Brokers Sell Corporate Network Access | Sinon Security
Initial access brokers auction VPN, RDP and domain admin access to ransomware crews. See how IAB listings work, what they cost in 2026, and how to detect exposure early.
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