https://www.reuters.com/article/us-wirecard-accounts/total-disaster-phantom-billions-plunge-wirecard-into-chaos-idUSKBN23T06V >Wirecard said on Monday that 1.9 billion euros ($2.1 billion) it had booked in its accounts likely never existed, a black hole that threatens to engulf the payments company and tarnish the reputation of Germany's financial watchdog.