That is your experience from your particular point of view. However, it's unlikely that someone who found a way to avoid paying for your product will confess to bypassing your protection. I, on the other hand, once had a call from a customer complaining about my software and I found out he was using an illegal copy of it. Someone was distributing it without my permission. One part of me was flattered, the other one was furious, with myself, for thinking an accde file would be secure. That software, which calculates 3D spots and plots them into a niche 3D application for construction boundary surveyors is now used by who knows how many people now, but I'm turning it into a .NET application to avoid this. I hope others don't go through that.I have not been cracked since '87, of course I have only had about 300 clients, it is not industrial or massive, I did not have the necessary capital to do it well, and sell it as a standard package, dealing with clients and their adaptations was very personal, but After several sales, the adaptations worked for everyone and I had a fairly commercial product.
The point is, don't trust in Access' securitus.