The security of a UPVC door is independent of the locking points and deadbolt. If a Euro Cylinder is snapped these mechanisms no longer stay locked.
Frequently asked Questions
The regulation British Kitemark Standard (BS EN 1303: 2005) does not cover snap resistance. Only the SS312 Sold Secure Diamond and BSI TS007:2014 3 star Accreditations have been proven and tested against lock snapping tests. The ABS locks pass both these standards and provide snap security without need of additional locks or guards.
While snap off sections will slow down an attack, Euro Cylinders that only have a 1 star Kitemark have not passed any snapping tests. This means they require additional 2 star rated security hardware to be effective. The most efficient solution is to upgrade with an ABS 3 star rated cylinder which has been proven against lock snapping tests.