Bisq Protocol has suffered a security breach resulting in the theft of approximately 11 BTC, primarily from altcoin trades. The attack exploited a negative miner fee vulnerability, allowing the hacker to transfer funds to their account through multisignature transactions. In response, Bisq has patched the vulnerability and is preparing a software update to enhance security. The protocol is currently discussing compensation options for affected users, offering reimbursement in Bitcoin or BSQ tokens. This plan requires approval through a DAO vote, with a decision expected by May 25. Bisq advises users to temporarily reduce BTC holdings in their wallets as a precaution. The team views the incident as serious but contained, emphasizing the importance of security vigilance for other projects.