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Leak Bazaar is an emerging ransomware and extortion threat actor observed in 2026. It has been identified as one of several newly appearing groups in the contemporary ransomware ecosystem alongside other newly emerged actors. High-confidence public reporting currently supports only limited attribution and tradecraft detail for this actor. Leak Bazaar is associated with the broader ransomware landscape in which operators use dedicated leak sites and data-exposure pressure as part of extortion operations, but specific victimology, malware family details, operational structure, and country attribution for Leak Bazaar are not currently available from the supplied facts. Known aliases include leakbazaar and leak_bazaar.
Mallory correlates actor tradecraft and target patterns against your stack, your sector, and your geography. See overlap before they land.
1 distinct technique observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
1 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Match sector + geo + tech-stack targeting against your real footprint.
Every observed MITRE ATT&CK technique, grouped by tactic.
Families this actor is known to deploy, with IOCs and behavior.
CVEs this actor has used in known campaigns.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Domains, IPs, and hashes tied to this actor, refreshed continuously.