# 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.

- Published: 2026-10-02T06:09:12.150Z
- Canonical: https://polylog.news/crypto/2026-10-02/electrum-patches-a-lightning-backup-flaw-that-left-users-una
- Publisher: Polylog (Crypto desk)
- Section: crypto
- Sources: [CryptoSlate](https://cryptoslate.com/electrum-patches-lightning-flaw-but-old-bitcoin-backups-break/), [Electrum GitHub (issue 10995)](https://github.com/spesmilo/electrum/issues/10995), [KuCoin News](https://www.kucoin.com/news/flash/electrum-releases-version-4-8-2-to-fix-lightning-wallet-backup-vulnerability)

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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