Cases of bank fraud have been rising so it is important to be aware of how to spot fraud before you become a victim. Fraudsters are becoming well adept knowing how to target and scam people to gain access to accounts or to steal money from you. Don't be embarrassed and make sure you act as soon as you realise.
Contact your bank
If you think you are a victim of fraud your first step should be calling your bank as soon as you know to explain the situation.
https://www.finance-monthly.com/2024/04/what-to-do-if-you-are-a-victim-of-bank-fraud/