Anonymous messages questioned judgment of senior managers in dealing with Greensill, says Swiss regulator

Bosses at Credit Suisse were warned against dealing with the Australian financier Lex Greensill’s eponymous company three years before the collapse of his Greensill Capital, which once employed the former UK prime minister David Cameron as an adviser.

The “character judgment” of senior Credit Suisse managers was challenged in anonymous messages they received as early as 2018, which raised concerns over the Swiss bank’s dealings with Greensill, according to a report by the Swiss regulator Finma, released under a London court order after a request by the Guardian and other media.

The document showed senior managers were warned several times about the risks involved in its business dealings with Greensill and his firm, the 2021 collapse of which contributed to Credit Suisse’s shocking demise in March 2023.

A message from an anonymous tipster raised “strong doubts” over the bank’s strategy of packaging up Greensill’s loans into $10bn (£7.4bn) worth of investable funds for wealthy clients.