Help Keyboard auto-suggests credit card number

[Emanuelle]

So I recently realized that when I type in the first number of my credit card in a text message with no other context, my phone will suggest my FULL credit card number as the complete word. How do I prevent this from happening without disabling aut-complete and word suggestions? I looked in the keyboard settings under "my words" and it's not there (neither are any passwords thankfully) but I still can't help but fear for the safety of my banking information if anyone were to steal my phone...

 

[hiredgun]

Not sure what keyboard you have, but on most if you long press on the prediction, in this case your credit card number, it will give you the option to delete it. Just out of curiosity, which keyboard is it?