Don’t need events that extreme. Regular branch banks have stuff go missing from the safety deposit boxes shockingly regularly. The locks aren’t particularly secure and various people are able to access them. It can be hard to find articles about them because they don’t make the news like the more remarkable incidents do. Examples of boring security box failures (but that were noteworthy in other ways so they did make the news): Jennifer Morsch, Roberta Glassman, Lianna Sarabekyan (multiple customers affected), Philip Poniz, Wells Fargo in Cape Coral FL, Wells Fargo Katy TX (many customers affected, blamed on road construction down the street), lots of individual stories where banks just totally stopped following their own procedures on ID checking and logging.

The vast majority of these don’t make the news because there’s no proof there was even anything inside the box in the first place so anyone could be lying.

> Mr. Pluard, who tracks legal filings and news reports, estimates that around 33,000 boxes a year are harmed by accidents, natural disasters and thefts.

> Oddly, the bank returned to him five watches that weren’t his. “They were the wrong color, the wrong size — totally different than what I had,” Mr. Poniz said. “I had no idea where they came from.”

https://archive.is/j8e6x