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Morning Edition · Friday, October 2, 2026Published at 2:09 AM EDT · New York
Electrum Patches a Lightning Backup Flaw That Left Users Unable to Reclaim Funds After a Remote Channel Close
The fix only protects new exports, so holders with seed-phrase-derived Lightning keys and anchor channels must replace older backups that lack the key needed to sweep their balance.
Electrum, one of the oldest and most widely used desktop Bitcoin wallets, has patched a flaw in Lightning wallet backups, but the repair does not fix exports made before the update. Affected users must create new backups, and the software n…
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Implementation Bugs, Not Just Exploits, Threaten Custody
Cryptographic implementation errors in wallets and signers (biased nonces, reused randomness, faulty derivation) keep surfacing as a distinct custody risk alongside smart-contract exploits, eroding the assumption that certified hardware protects keys.
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