Yes, but so is every other option for saddle security. Cements and expoxies succumb to solvents, cables can be clipped with shorty bolt cutters, and it's not that hard to find a multi-head screwdriver set at your local Harbor Freight for whatever was used to bolt the saddle down. There is no such thing as complete security, only theft deterent for a crime of opportunity. If you aggravate the would-be thief enough, he might just show up later with a hacksaw and just lop it off at the post. Now that would be fun to watch.