the same thing has happened to me,i think it was in a place called Bell where someone tried to access my account,it was a while ago so not 100% sure of location, which state did they try and access your account from?
my bank put an immediate stop on the attempted transaction so i didn't lose what small amount i have.
Apart from ttm,the only other place i have used that card was paypal via ebay,i used a different card ages ago for a transaction from amc,so no connection with them and the cc hasn't been hacked or anything since ordering from amc.
I don't think its ttm having a rogue employee,only 2 of us have mentioned this attempt to access our bank.
i have seen stuff on the dark net(LOL) via tor where peoples paypal details are offered for sale,don't know if they are gen or someone trying to scam,so no idea who is behind this,glad you did not lose money though whoknew.