Cross-chain bridge Across has confirmed a hacking attack on the Solana network. The breach was reported on July 17, with the protocol stating that all cross-chain transactions initiated before the incident were completed normally. Crucially, Across said no user funds were compromised.
The attack may have affected some operating funds held by Risk Labs, the development firm behind Across. The protocol did not specify the amount lost or the exact method used by the hacker. As a precaution, Across temporarily suspended deposits sending assets to the Solana network on July 17. Outside of Solana, the protocol's other functions continue to operate normally.
Across is now working with an external security firm to trace the hacker's address. The team said it plans to release a post-mortem report analyzing the circumstances and cause of the attack. No timeline has been given for when Solana deposits will be restored.
The incident highlights persistent security risks in cross-chain bridging, a sector that has seen a string of high-profile exploits. Solana's ecosystem, in particular, has faced multiple bridge-related attacks over the past year, though the network itself has not been directly compromised in this case.
For traders holding SOL or interacting with Across on Solana, the immediate risk appears contained to the temporary deposit halt. Withdrawals and other operations remain unaffected. The key watch item is the forthcoming security report, which should clarify whether the vulnerability was specific to Across's Solana integration or rooted deeper in the protocol's architecture. Until then, users on other chains face no change in service.
Cross-chain bridge Across hit by hack on Solana; user funds safe, deposits paused
Across bridge on Solana suffered a hacking attack but no user funds were affected. The protocol suspended Solana deposits temporarily and is investigating the breach with external help.