According to preliminary investigations, hackers placed hundreds of false orders to move money to fake accounts in other banks, and accomplices emptied the amounts in cash withdrawals across different bank branches.
The fake orders ranged from tens to hundreds of thousands of pesos.
It's not clear how much of the transferred money was actually withdrawn.
The Mexcian central bank also said that no clients had been affected by the breach so far. The fraudulent transfers had hit only the accounts of financial institutions in the central bank. Details about damage to other banks isn't known yet.