CRA duped in $40M bogus tax refund case. Why did it take a big bank to notice?

In 2023, a Canadian payer logged into his Canada Revenue Agency account, falsely amended erstwhile taxation returns and wrongly claimed helium was owed much than $40 cardinal successful refunds. Without verifying immoderate of the recently filed taxation slips, the Canada Revenue Agency authorized the payments and began making the archetypal instalments, according to sources.