Hackers hijack exposed LLM endpoints in Bizarre Bazaar operation

Hackers hijack exposed LLM endpoints in Bizarre Bazaar operation

A malicious campaign is actively targeting exposed LLM (Large Language Model) service endpoints to commercialize unauthorized access to AI infrastructure.

Op Bizarre Bazaar: New LLMjacking Campaign Targets Unprotected Models

Pillar Security Research has discovered Operation Bizarre Bazaar, a massive cyberattack campaign led by a hacker known as Hecker. Between December 2025 and January 2026, over 35,000 sessions were recorded targeting AI systems to steal compute power and resell access via silver.inc.

LLMs Hijacked, Monetized in ‘Operation Bizarre Bazaar’

An LLMjacking operation has been targeting exposed LLMs and MCPs at scale, for commercial monetization. The post LLMs Hijacked, Monetized in ‘Operation Bizarre Bazaar’ appeared first on SecurityWeek. This article has been indexed from SecurityWeek Read the original article: LLMs Hijacked, Monetized in ‘Operation Bizarre Bazaar’ The post LLMs Hijacked, Monetized in ‘Operation Bizarre Bazaar’ appeared first on IT Security News.

Crooks are hijacking and reselling AI infrastructure: Report

Researchers at Pillar Security say threat actors are accessing unprotected LLMs and MCP endpoints for profit. Here’s how CSOs can lower the risk.

First large-scale LLMjacking generates tens of thousands of attacks

Pillar Security discovers first large-scale LLM hijacking with 35,000 attacks. Operation Bizarre Bazaar exploits AI infrastructure commercially.

Hackers Hijack Exposed LLM Endpoints In Bizarre Bazaar Operation - Cybernoz - Cybersecurity News

A malicious campaign is actively targeting exposed LLM (Large Language Model) service endpoints to commercialize unauthorized access to AI infrastructure. Over a period of 40 days, researchers at Pillar Security recorded more than 35,000 attack sessions on their honeypots, which led to discovering a large-scale cybercrime operation that monetizes and exploits access to exposed or poorly authenticated AI endpoints. They call the campaign ‘Bizarre…