https://www.reuters.com/article/us-wirecard-accounts-regulators-exclusiv/exclusive-germany-missed-chances-to-put-wirecard-on-watchlist-source-says-idUSKBN2402C4 >German regulators twice looked into tightening the supervision of collapsed payments firm Wirecard and discussed it with the German and European central banks but no action was taken, a person with direct knowledge of the talks told Reuters.