Boltz Founders Step Down as AI-Assisted Attacks Force Handover

A five-person Bitcoin startup just admitted it couldn’t keep up with attackers backed by AI, and handed the keys to a group willing to try.

Boltz, the non-custodial Bitcoin swap service, suspended operations on August 3 after months of increasingly frequent and sophisticated attacks from what the team described as AI-assisted attackers. On August 13, all three founders, Kilian Rausch, Michael, and Karl, stepped down, transferring control to an unnamed group of veteran Bitcoiners willing to bring in fresh capital and engineering resources.

Because Boltz is non-custodial, the team says user funds were never directly at risk even though several of the attacks succeeded. The new operators haven’t been named publicly, and Boltz says the goal is to find and fix the underlying vulnerabilities and restore swap functionality as soon as possible.

A bootstrapped team losing a defensive arms race to AI-assisted attackers is a genuinely new kind of failure mode, not the usual funding or product story, and it’s a preview of the kind of operational pressure smaller non-custodial protocols may increasingly face. Blockstream has already stepped into the gap with its own Lightning swap product while Boltz works to come back online.

Curious what “non-custodial” actually means for where your funds sit during a service outage? Learn more in the Bitcoin Academy.