What’s the surprise. Our kids have been cracking copy protection schemes for years now. Or Who’s to say it’s not faulty encryption with back door?
Even easier it to record the signal as you get out of your car and lock it with the key fob, the code is merely a high frequency sound.
If you lock your keys in the car and the wife has an opener just call her on your cell phone and ask her to send the code over the phone, works I have done it.
Might be helpful if when you get out of your car always set the lock manually and not with the remote, might help.