SMR Locksmiths Ltd - Norbury and Streatham local locksmiths
South West London despatch point: 10 Cranbourne Close, Norbury, London, SW16 4NG

April 30, 2024

Lock Bumping: Risks and Prevention

Lock bumping is a method employed by burglars to gain illicit access to locked doors. This technique exploits the inner workings of pin-tumbler locks, which are commonly installed in residential and commercial properties across the UK. To fortify your security against such intrusions, it’s essential to comprehend how lock bumping operates and adopt preventive measures accordingly.

What is lock bumping

Lock bumping revolves around the utilisation of a specially crafted bump key to manipulate the pins within a lock mechanism. Crafted with subtle variations in its cuts, a bump key fits into the lock’s keyway. Upon insertion, a swift strike with a blunt object, such as a hammer or screwdriver, jolts the pins momentarily. This momentary disruption allows the cylinder to rotate, facilitating the opening of the lock. Notably, the execution of lock bumping demands minimal expertise and can be accomplished swiftly, making it an attractive method for potential intruders.

Risks inherent in lock bumping

The primary risk associated with lock bumping is the potential for unauthorised entry into your premises. Burglars adept in this technique can infiltrate homes, businesses, and other secured areas without leaving behind any discernible signs of forced entry. Moreover, the widespread availability of bump keys through online channels amplifies the security threat, as individuals harbouring malicious intent can readily procure them.

Preventive measures

To fortify your defences against lock bumping and enhance the security of your property, consider implementing the following preventive measures:

  1. Upgrade Your Locks: Replace standard pin-tumbler locks with high-security alternatives that offer resistance against bumping. Opt for advanced lock mechanisms such as dimple locks, magnetic locks, or smart locks equipped with sophisticated security features to bolster protection.
  2. Install Security Pins: Integrate security pins, such as spool pins and mushroom pins, into existing locks to augment their resistance to bumping. These specialised pins disrupt the bumping process by introducing additional obstacles, thwarting potential intruders.
  3. Employ Bump-Proof Locks: Invest in locks explicitly engineered to withstand lock bumping. Look for locks certified as “bump-proof” or “anti-bump” by reputable security standards organisations. These locks incorporate innovative designs and technologies to effectively repel bumping attempts.
  4. Reinforce Entry Points: Strengthen doors and windows with supplementary locks, deadbolts, and security bars to fortify entry points. Ensuring robust physical barriers discourages burglars from attempting forced entry, enhancing overall security.
  5. Implement Comprehensive Security Systems: Deploy a comprehensive security system comprising alarms, surveillance cameras, and motion sensors. A meticulously monitored security setup detects and alerts you to any suspicious activity, providing an additional layer of protection against intrusions.
  6. Exercise Vigilance: Foster a culture of vigilance by maintaining awareness of your surroundings and practising prudent security habits. Conceal valuables from plain sight, refrain from divulging sensitive security information publicly, and consistently lock doors and windows to mitigate potential risks.

In the UK, several high-quality locks are specifically designed to resist lock bumping and other forms of forced entry. 

Here are some of the best bump-proof locks available:

  1. Ultion: Ultion locks are widely regarded for their exceptional security features, including resistance to lock picking, drilling, and bumping. They utilise a unique system called Lockdown Mode, which activates automatically when a potential threat is detected, further enhancing security.
  2. ABUS High-Security Padlocks: ABUS offers a range of high-security padlocks equipped with advanced anti-bump mechanisms. These padlocks feature precision-engineered components and robust construction, making them highly resistant to tampering and manipulation.
  3. Mul-T-Lock MT5+: Mul-T-Lock’s MT5+ cylinder lock is renowned for its superior bump-resistant technology. It incorporates multiple security mechanisms, including telescopic pins and interactive elements, to thwart bumping attempts effectively.
  4. ERA Fortress BS 3621 5 Lever Mortice Deadlock: This deadlock from ERA meets British Standard BS 3621 and boasts a 5-lever locking mechanism, providing robust resistance against bumping, picking, and drilling. It’s an ideal choice for securing external doors.
  5. Yale Platinum 3 Star Euro Cylinder: The Yale Platinum Euro Cylinder is accredited with a 3-star British Kitemark rating, signifying its exceptional security performance. It features anti-bump, anti-pick, and anti-drill features, offering comprehensive protection against intruders.
  6. Evva EPS: Evva EPS locks utilise a patented system called MCS (Multiple Coding System) to deliver unparalleled security. With features such as mushroom pins and anti-drill protection, Evva EPS cylinders are highly resistant to bumping and other forms of attack.
  7. Avocet ABS Euro Cylinder: The Avocet ABS Euro Cylinder is accredited with the highest security rating of 3 stars by the British Kitemark. It incorporates anti-bump, anti-pick, and anti-drill technologies, making it one of the most secure options available in the UK market.

Lock bumping poses a significant security hazard for property owners, necessitating proactive measures to mitigate the associated risks. 

By comprehending the intricacies of lock bumping and implementing robust preventive strategies, you can bolster the security of your premises and safeguard against potential intrusions. Prioritise the installation of high-security locks, reinforce entry points, and integrate comprehensive security systems to fortify your defences effectively. With vigilance and prudent security practices, you can enhance the safety and security of your property and loved ones.

When selecting a bump-proof lock for your property, ensure that it meets relevant British standards for security and durability. Additionally, consider factors such as compatibility with existing door hardware and the reputation of the manufacturer. Investing in a high-quality bump-proof lock is essential for enhancing the security of your home or business and providing peace of mind against potential intrusions.

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