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A popular cryptocurrency wallet is reporting that it has fallen victim to a significant hack that has led to the compromise of a number of its users.
Atomic Wallet has said it noted “reports of wallets being compromised” on 3 June in a tweet and later added that the apparent hack — and subsequent theft of cryptocurrency — affected less than 1 per cent of its customers.
“At the moment, less than 1 per cent of our monthly active users have been affected/reported. Last drained transaction was confirmed over 40h ago,” Atomic Wallet said today (5 June).
“Security investigation is ongoing. We report victim addresses to major exchanges and blockchain analytics to trace and block the stolen funds.”
The earliest noted unauthorised transaction occurred on 2 June and seems to have stopped less than 24 hours later, according to one crypto expert, and since then, the total value of stolen crypto has been over US$35 million, according to another crypto commentator.
So far, the biggest single loss recorded as of 4 June was US$7.95 million.
“The five biggest losses account for $17M,” tweeted ZachXBT.
The stolen currencies include “Bitcoin, ETH, Tron, BSC, ADA, Ripple, Polkadot, Cosmos, Algo, Avax, XLM, LTC and Doge”, ZachXBT tweeted earlier.
Atomic Wallet has emailed the affected users asking them to report where they’d acquired the software, what operating system they had been using, and where the backup phrase — which is part of the wallet’s authentication system — was stored.
“Seems like your wallet was compromised,” the email read, according to a post on Telegram seen by Bleeping Computer, “Please transfer any remaining funds out of that wallet ASAP to prevent any further loss.”
Atomic Wallet has not yet reported on the nature of the hack.
David Hollingworth has been writing about technology for over 20 years, and has worked for a range of print and online titles in his career. He is enjoying getting to grips with cyber security, especially when it lets him talk about Lego.