Last I paid attention, some jurisdictions make it very difficult to access the contents of a safe deposit box after one of the owners has died. (Supposedly to discourage cheating on inheritance taxes with gold coins, or ...)
A bit of research might be indicated, before trusting this strategy to perform when needed.
Re:Assume your devices are compromised
by pavel_lishin on Monday April 18, 2022 @09:34PM
(#31078899)
She could store it in her safety deposit box. Or in a fire safe we keep at home. Or buried in a tin can in the backyard.
Much less tedious, and concentrates trust in the one person who should have it - the spouse!