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 lock that I know of that isn't vulnerable to bumping, raking 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.

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.