The Kaba Simplex solves the problem because it is a mechanical lock that utilizes push-buttons, which, believe it or not, are allowed under Jewish law.

Video To open a door fitted with the latest U.S. government-certified lock from high-end Swiss lock manufacturer Kaba, an employee must both enter a code up to eight digits long, then swipe a ...

But the lead plaintiffs in the suit are not government officials or business owners. They are Orthodox Jews who use Kaba locks on their homes so they can secure their doors without the use of a key.