Bank networks Hardware security research man
There could be several and may be different approaches to bank networks security.
I've entered a team working on electronic approach which looks for available hack scenarios based on electrical/electronic vulnerabilities.
My 1st accomplished project was detecting "Mellat Bank of Iran" POS system vulnerabilities.
Detected vulnerabilities had been approved last January by the bank.
Today we are about to detect hack scenarios based on circuits "data leakage" availabilities.