Will stolen LLM inference harvesting via semi-autonomous agents be replicated by a second threat actor by end of 2026?

SANS ISC reports a semi-autonomous coding agent conducting offensive operations: harvesting poorly secured LLM API gateways, acquiring access via web flaws and account farming, and aggregating inference capacity behind a single malicious gateway. This supply-chain attack pattern on AI infrastructure may inspire replication by other threat actors, significantly expanding the attack surface for AI services and enterprises using shared LLM platforms.

Resolution Criteria

Confirmed by security researchers, vendors (OpenAI, Anthropic, AWS Bedrock, etc.), or CISA advisory documenting a DISTINCT threat actor group independently using the same or similar method (semi-autonomous agent-driven inference harvesting and resale) against LLM gateways by 31 Dec 2026.