4.8.3, and the developers are urging everyone to install it immediately.
The bug lets a malicious server feed fake transaction history into the wallet’s interface. Attackers used that to trick users into sending funds to recipients they never intended to pay.
A Fake Transaction That Showed No Fee
In the reported attack, the malicious server swapped a user’s real transaction for a fraudulent one that benefited the attacker. The counterfeit entry displayed a zero fee. One user reportedly responded the way many careful users would: they manually increased the fee, unaware the transaction had been replaced, and ended up paying the attacker.
Update to 4.8.3 Before Sending Anything
Users who stay on an older version remain exposed to the same kind of attack. Electrum’s guidance comes down to three steps:
- Update now to
4.8.3, which patches the flaw - Download the update only from the official Electrum website
- Check every transaction detail before confirming a transfer
Separately, the news arrived on a weak day for crypto prices. As of , 45 of the 50 major cryptocurrencies tracked on Pluang were down. SNX fell 7.53% to Rp3,560, DOT dropped 6.70% to Rp18,820, and AAVE slid 6.84% to Rp2,465,958.
Hashlytics Take
The detail that stands out is the user who raised the fee by hand. That is a careful person doing what careful people do, and it still ended with a payment to the attacker, because the transaction on screen had been replaced by the server. Flaws like this get around diligence, which means “verify before you send” is only as good as the data feeding the display. For Electrum users, updating is not routine housekeeping. Until 4.8.3 is installed, the wallet’s own transaction view is the one thing you cannot fully trust, and that is where protecting your digital assets starts.
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