ASI Alliance SingularityNET Bridge Key Compromise

Summary

A compromised bridge signing key let an attacker drain FET and mint AGIX, NTX and WMTx across the ASI Alliance's Ethereum token-conversion contracts, amassing roughly $16.77 million in tokens.

Incident

• Victim: ASI Alliance
• Date (UTC): 2026-09-19
• Estimated loss: $16.8M
• Chain(s): Ethereum
• Attack type: bridge exploit
• Funds status: stolen

Recommended actions

• Revoke token approvals granted to ASI Alliance contracts until the project confirms they are safe
• Integrators: pause or delist affected assets and monitor for attacker fund movements
• Beware of follow-on phishing: ignore unofficial "refund", "recovery", or "claim" links and DMs; use the project's verified channels only

Source & attribution

Full analysis on Blockchain Breaches, 0xCERT's incident archive: https://www.blockchainbreaches.com/en/breaches/asi-alliance-2026. Primary sources: https://mpost.io/key-compromise-behind-fetch-ai-linked-bridge-attack-drives-losses-to-16-77m/ ; https://www.kucoin.com/blog/en-fetch-ai-fet-exploit-1-56m-drained-from-token-converter-after-signing-key-compromise ; https://www.cryptotimes.io/2026/09/21/singularitynet-bridge-hack-widens-260m-agix-53-8m-wmtx-minted-16-77m-held-by-attacker/.