How to tell if your locks are bump proof?
If your lock is a just a simple pin tumbler  then its vulnerable to bumping. 



There are some pin tumbler locks that say they protect against bumping,  but in practice it might be a little more difficult,  but still very vulnerable.   In fact the only deadbolt lock that I know of that isn't vulnerable to bumping, rakeing or other simple attacks.    Is the Shalge Primus or another Hybrid key type.   The pin tumbler on the primus is 100% vulnerable to bumping,  however,  the "side-bit milling"  isn't vulnerable.   Defense in depth security in layers.