Blockstream has launched the beta phase of its trustless swap service, offering a new way to move Bitcoin assets across the main chain, the Lightning Network, and the Liquid sidechain. This initiative arrives shortly after Boltz, a well-known atomic swap provider, suspended its own operations due to repeated AI-driven attacks targeting its systems.
Blockstream Swaps: An Addition, Not a Replacement
Blockstream introduced its Swaps service as a solution for the gap left by Boltz’s sudden exit. The company clarified that it does not intend to replace Boltz or any other service providers in the space. Instead, Blockstream emphasized its aim to increase redundancy and resilience within the Bitcoin ecosystem by adding another reliable option for atomic swaps.
Atomic swaps enable two parties to exchange assets directly, without an intermediary holding either side’s funds. These exchanges rely on hashed time-locked contracts to ensure transaction security and integrity. Blockstream’s new offering operates on similar technical primitives as Boltz, and the company indicated it had been developing its solution prior to the recent events but sped up its deployment after Boltz’s suspension.
Blockstream highlighted that “Swaps was already in development before Boltz suspended service,” while recognizing that the shutdown increased the urgency to bring their solution forward.
With the recent upgrade, Blockstream Swaps now links all three layers of the Bitcoin network—mainchain, Lightning, and Liquid. Previously, users could only perform Lightning-to-Liquid swaps, but the addition of mainchain support completes this triangle for advanced asset transfers. Blockstream is also the developer and maintainer of Liquid, a federated sidechain where LBTC mirrors Bitcoin’s value.
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AAPLAI Threats Drive Boltz Exit
Boltz suspended its swap service after experiencing relentless attacks by AI-powered agents, which increasingly probed and breached its systems. According to Boltz, the rapidly evolving nature of these attacks outpaced the team’s ability to respond with timely patches and mitigations. The company stated that, because customer funds were never held by the platform, no coins were lost during these incidents.
Boltz remarked, “Attackers now iterate faster than a team our size can find and patch,” underscoring the pressure that small teams face amid a surge of AI-assisted cyber threats.
After Boltz’s suspension, several wallets that relied on its swaps—including Bull Bitcoin and Aqua Wallet—were directly affected, leading to wider disruptions for users.
Heightened Security Concerns Across the Lightning Ecosystem
The disruption was not isolated to Boltz. On August 5, ZEUS, another Lightning Network operator, took its infrastructure offline following a contained security incident—the third major Lightning operator to suspend services in a span of 72 hours. Despite this challenging period, analytics from Amboss found that the Lightning Network’s public capacity increased by 28 BTC and channel count grew by 256, suggesting resilience at the protocol level.
Industry-wide, operators are engaged in an ongoing arms race with attackers leveraging advanced AI tools. Research by a16z crypto found that the success rate for AI agents exploiting known vulnerabilities jumped from 10% to 70% when given specific attack context. In response, over 40 Bitcoin firms have appealed to AI labs for defender-level access to these same models to bolster security efforts.
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