Hi @Petrus-Olive-Tiger#166050
Unfortunately I don't know as I'm not a bunq employee and such information would be limited to a certain department or staff members only. But yes it would make sense if there is some kind of communication between (Dutch) banks to combat money laundering and fraud together.
Reading the above comments it looks like some kind of security mechanism by Rabobank to prevent accounts being emptied after someone acquired login details of one of their customers. But it would make more sense to hold payments and investigate them instead of letting payments through and blocking the account(s) afterwards in my opinion.
I hope in the future banks are allowed to share more (anonymized) information through a dedicated platform to combat fraudulent activity/users and improve the security of accounts. But it seems for now that privacy issues are still a key factor here resulting in banks operating all independently with their own systems and tactics and sometimes having to 'defend the bad guys'. Banks are generally not really keen to speak about any of their security and control mechanisms either to prevent too much insights for the dark side of our payments systems. :D