Anons
Meet Christoph Meili, former UBS security employee and whistleblower
In early 1997, Meili had been working as a night guard at the Union Bank of Switzerland (UBS, precursor of UBS AG) in Zürich, Switzerland. He discovered that officials at UBS were destroying documents about orphaned assets, believed to be credit balances of deceased Jewish clients whose heirs' whereabouts were unknown, as well as books from the German Reichsbank. They listed stock accounts for companies in business during The Holocaust, including BASF, Degussa, and Degesch. They listed real-estate records for Berlin property that had been seized by the Nazis, placed in Swiss accounts, and then claimed to be owned by UBS. Destruction of such documents is against Swiss laws. The documents Meili saved reportedly predate the Nazi period, dating from 1897 to 1927.
Should be worth digging, huh?
https://en.wikipedia.org/wiki/Christoph_Meili