Likely its because of all the other privacy tools that I use. Banks don't like it when they can't track you. Every time they think I have a new device. They interpret "oh shit we can't track this person between sessions" as "its suspicious! Lock the account!" ...even though I use the correct username & password on the very first try. Smh
Ultimately this is the result of Machine Leaning algorithms, but terrible ones because they never learn that they false positive 100% of the time on my account.
Anyway, this is never an issue with monero. The transactions can't be blocked. It literally works every time. And I hold the keys, so I don't have to worry about loosing my money because my bank gets hacked (or someone calls them with the knowledge of my mother's maiden name and the last 4 street addresses I had, and uses this public information to reset my password and steal my money)