Key facts
- Across Protocol said users should not access its app or connect wallets during the investigation.
- Across did not specify the nature of the incident or whether its website was compromised.
- One user on X claimed a $9,000 USDC loss; another reported 7,053 USDT0 lost across seven Plasma transactions.
- A third user alleged the website had been compromised after using the bridge several times.
- Across asked the users for transaction details and did not immediately respond to Cointelegraph's request for comment.
Across Protocol, a crosschain bridging protocol that lets users move digital assets between Ethereum and other blockchain networks, warned users on November 10, 2026 not to access its app or connect their wallets while it investigates a potential security incident.
In a post on X that day, Across advised users against signing transactions or approvals until further notice. It did not specify the nature of the incident or say whether its website had been compromised.
Users on X reported losses. One claimed to have lost $9,000 in USDC, and another reported losing 7,053 USDT0 across seven transactions on the Plasma blockchain. A third said their wallet was drained after using the bridge several times and alleged the website had been compromised. Across asked the users for transaction details to investigate.
Cointelegraph, which reported the warnings, said it had not independently verified the user reports. Across Protocol did not immediately respond to Cointelegraph's request for more details.