CYBERSECURITYTRACKER
TRACKING6,584 stories in this site build1,343 vulnerability news stories in this site build
Weekly summary

Week of 31 August to 6 September 2026

249 stories tracked from Monday to Sunday, Coordinated Universal Time (UTC): August 31 to September 06, 2026; +26 vs prior week; 10 Cybersecurity and Infrastructure Security Agency (CISA) Known Exploited Vulnerabilities (KEV) additions from Monday to Sunday, UTC: August 31 to September 06, 2026; 164 ransomware leak-site claims observed in tracked feeds (unverified) from Monday to Sunday, UTC: August 31 to September 06, 2026

Monday to Sunday, UTC. Permalink label: 2026-W36.

249
Stories
+26 vs prior week
10
CISA KEV additions
-3 vs prior week
164
Leak-site claims
-43 vs prior week
Most covered
Most active ransomware groups (leak-site claims, unverified)
KryBit15 claims+2 vs prior week
Qilin15 claims-27 vs prior week
INC Ransom13 claims+8 vs prior week
Akira11 claims-1 vs prior week
Direwolf9 claims+4 vs prior week
LockBit9 claims+3 vs prior week
The Gentlemen9 claims-12 vs prior week
Braincipher8 claims+8 vs prior week
Silentransomgroup8 claims-2 vs prior week
Storm8 claims+4 vs prior week

Leak-site claim data is unverified: RansomLook (CC BY 4.0).

Takedowns and arrests

1 more qualifying action on the full feed.

All takedowns and arrests

CISA KEV additions
Vulnerabilities on the move, to (the 7 days before this recap was generated)
Ransomware leak-site claims (20 of 164 shown, unverified)

Ransomware claim data is unverified: RansomLook (CC BY 4.0), with ransomware.live as a voluntarily credited failover.

All leak-site claims and confirmed breaches

Glossary