BIP 110 Bitcoin Soft Fork Delayed Following Coldcard Security Issue

The effort to activate BIP 110 on the Bitcoin network has officially stalled. Udi Wertheimer announced that the activation of this soft fork is delayed indefinitely, citing the recent security incident involving Coldcard hardware wallets. Users who were running BIP 110 compatible software are now being urged to revert to standard Bitcoin nodes to ensure their systems remain synchronized with the rest of the network.

BIP 110 was designed as a temporary soft fork to restrict the amount of data permitted within Bitcoin transactions. Proponents argued that limiting transaction data would prevent network congestion caused by non payment activity, while opponents maintained that Bitcoin should remain neutral regarding how users utilize blockspace. The proposal faced significant criticism and had struggled to gain the required support from miners, reaching only a fraction of the necessary votes.

The delay also follows a critical discovery regarding Coldcard wallets, which were found to use insufficient randomness when generating seed phrases. This vulnerability made affected wallets significantly easier for attackers to compromise. Because the security issue has dominated the attention of the Bitcoin community, developers decided that moving forward with a contentious protocol change was not appropriate at this time.

There is currently no new date for a potential BIP 110 launch. With mining support for the proposal remaining far below the required thresholds, the future of the project remains uncertain. For now, the community focus has shifted back toward security and general network stability.