The non-custodial Bitcoin (BTC) bridge Boltz has suspended its swap services indefinitely.
The service connecting Bitcoin’s main chain with the Lightning Network and Liquid sidechain stopped operations after months of AI-assisted exploits outstripped the bootstrapped team’s ability to develop and deploy patches.
“Update: Boltz will stay disabled until further notice.
Our API remains available to process refunds cooperatively. In any case, unilateral refunds will work, as they do not depend on our infrastructure.
Our support team stays reachable.
To be clear: this is not a response to a single incident. Over the past months we have seen a steady rise in automated, AI-assisted probing of our infrastructure, and we have dealt with several exploits. Each was contained, but the pattern is clear: attackers now iterate faster than a team our size can find and patch. In the past few days alone, we saw a drastic acceleration, and we do not believe this asymmetry will reverse. After reviewing the results of our own recent security scans, we cannot responsibly re-enable Boltz swaps, especially as we are being actively targeted by what appear to be multiple resourceful groups while we race to deploy fixes.”
According to Boltz, no user funds were lost during the incidents even as the platform itself absorbed some contained losses.
“To be explicit: no user funds were ever at risk. Boltz is non-custodial by design. And as a fully bootstrapped company, the losses were ours alone.”
The firm also warns that AI-assisted attacks pose a growing threat to crypto companies operating with open-source codebases.
“What we are seeing is a major paradigm shift for Bitcoin services operating on an open source stack, and it needs careful analysis. Do not expect swap services to resume shortly… We don’t know yet how things will continue from here, but we’ll keep you posted as soon as we have had the time to catch our breath and make a decision.”
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