What Is Lock Snapping and How to Reduce the Risk

Lock snapping is an attack against vulnerable euro cylinders. The aim of suitable security hardware is to increase tested resistance and protect the operating mechanism; no cylinder can guarantee that an attempted entry will fail.

Start with the actual property

!Euro-cylinder doorset being assessed for lock-snapping resistance

First confirm that the doorset uses a euro cylinder, then check cylinder size, projection, surrounding furniture, multipoint operation and manufacturer requirements. A product must suit the complete doorset rather than the cylinder aperture alone.

Measures to consider

• Consider a correctly sized TS007 3-star cylinder where compatible with the doorset.
• A suitable TS007 1-star cylinder paired with compatible 2-star security furniture may also provide a tested three-star solution.
• Use secure furniture and correct fitting so the installed assembly matches the intended tested configuration.
• Repair alignment or mechanism faults before repeated load damages the new hardware.
• Keep keys controlled and lock the door as designed.

Choose measures only after checking the complete door, window or building element. A product rating describes performance under defined tests; it does not guarantee prevention. Compatibility, fitting, surrounding construction and everyday operation all affect the result.

Standards, escape and insurance

Do not select hardware from the material name alone. Confirm the existing lock type, manufacturer guidance, fixing points and any fire, emergency-escape, accessibility or building-management requirements. Alterations to a certified doorset need an approved compatible specification.

Insurance requirements are policy-specific. Obtain the exact wording from the insurer and verify it directly rather than assuming one standard or product will preserve cover.

Frequently asked questions

Does TS007 mean the lock cannot be snapped?

No. It indicates performance under defined tests and can increase resistance when the product is correctly specified and fitted.

Is every euro cylinder the same size?

No. Incorrect projection can reduce the effectiveness of the installed security, so the doorset should be measured.

Does this advice apply to timber mortice locks?

Not necessarily. Timber doors may use a different lock type and should be assessed as a complete doorset.

Planning the next step

Have the cylinder, furniture and mechanism assessed together before selecting an upgrade. Contact Kingdom Locksmith to check local service availability and request an itemised quotation.