A 2025 recovery case involved a Bitcoin Core wallet.dat file from 2015.

A 2025 recovery case involved a Bitcoin Core wallet.dat file from 2015. The holder had encrypted the wallet with a password they were confident they remembered, but every combination they tried was rejected. After engaging a recovery specialist, it was determined that the wallet had been created on a machine with a non-standard keyboard layout—Swedish—and the password had been typed using position-based muscle memory. The password the holder 'remembered' was in fact the sequence of keystrokes on a US ANSI keyboard; the actual characters stored in the wallet encryption were the characters from the Swedish layout for those same key positions. Once the keyboard mapping was identified, the correct password was derived immediately.