There is a person on the inter-webs, who dedicated himself to reviews on security devices. His name is Lock Picking Lawyer and he showcases how secure real life locks are. In his [video 1543](https://invidio.us/watch?v=NMfpJ6EzqFI) he reviewed a rather peculiar security feature on a lock from ABUS. Which is strengthening itself not by building some clever mechanism that is hard to bypass, but rather, uses law, to make bypassing it more illegal than it already is. They made the key-way ( and by extension the key ) to be shaped as the trademarked logo of the company. Therefor producing or distributing blanks for this lock would be a violation of the trademark law. Using [proprietary software](/about/glossary#proprietary-software) for security is doing the same mistake as trusting this lock by ABUS.