The first suspect for a case as this is usually someon that is working in the bank and has access to your private information. they can sell your personal data to cyber criminals who will do the calling.

The second suspect that leaks your bank information can be the platforrms you have submitted your bank deatils to like a loan app, an employment site or maybe some of these government grants that usually ask you for your peersonal information. because we want to get those grants, we rush to give them our private information including our name, bank details and even bvn. that is another means our information goes outside.

Third could be the phising link you click knowingly or unknowingly. majority of the links running on the media is corrput and can be used to fetch your data. hackers and cyber theft can also use them to get your personal information.

JUST KNOW THAT YOUR DATA IS NOT SAFE ANY LONGER. YOUR ACCOUNT NAME, YOUR BANK, YOUR BVN AND EVEN YOUR NIN CAN BE EASILY GOTTEN FOR SOMANY SITES. the solution is just to secure your account so strong that even with those information, it becomes deficult to steal your money.