Electrum Wallet Flaw Exploited

Malicious servers exploited Electrum's Bitcoin wallet flaw, causing users to lose funds.

Oct 24, 2026

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Electrum Wallet Flaw Exploited

Malicious servers exploited Electrum's Bitcoin wallet flaw, causing users to lose funds.

In brief

Malicious servers exploited Electrum's Bitcoin wallet flaw, causing users to lose funds. Electrum's Bitcoin wallet flaw let malicious servers replace transaction history, leading to user losses. Originally reported by TokenPost.

Electrum Wallet Flaw

A finger pauses above a wallet fee confirmation on a phone / TokenPost.ai

Electrum's Bitcoin wallet flaw let malicious servers replace a transaction's wallet-history entry after its broadcast.

User Attack Process

A user first broadcast a legitimate transaction. A malicious server could suppress it and replace its history entry with a conflicting, invalid transaction directed to the attacker.

User Losses Reported

Developers said two users reported attacks, with one reporting a loss after manually raising the fee and signing the transaction.

In short

Electrum's Bitcoin wallet flaw let malicious servers replace transaction history, leading to user losses.

Read the original on TokenPost

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