Wallet of Satoshi Balance Scare Was an Outdated App Bug, Not a Hack

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On September 11, Bitcoin user Kristaps Kaupe posted on X that his Wallet of Satoshi balance was dropping without any outgoing payments, sparking fears of a hack that drew over 33,000 views. The cause turned out to be an outdated app: Wallet of Satoshi had migrated its backend to Spark, a self-custody system from Lightspark, and the old app could not display balances correctly after the change. Kaupe confirmed his funds were never missing by restoring his seed phrase in a separate Spark-compatible wallet, BlitzWallet, where his full balance appeared intact. He attributed the issue to a Wallet of Satoshi bug rather than a flaw in Spark itself. The incident highlights broader friction in the industry's ongoing shift from custodial Lightning wallets to self-custody solutions, with multiple users reporting display errors and feature losses during such migrations.

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