SecuritiMark is manufactured by Silent Security and it is the only vehicle security product that is guaranteed to prevent theft. It provides threefold vehicle protection: 1. Prevention 2. Recovery 3. Compensation And if your SecuritiMark protected vehicle is stolen and not recovered, you get £1,000 back. The £1,000 Guarantee is valid for 1 year from when it is registered with Silent Security and is valid for vehicles less than five years old.