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Security Layers
When a site, event, or business starts to think about security, it is often an afterthought. We’ll throw some security guards and a bit of CCTV into the mix, and this solves the problem, right?
Unfortunately, not. Ultimately, security is about dealing with people, be that face-to-face or remotely in the case of Cyber. Human beings can be ingenious in identifying weaknesses in a security system. If they are determined and motivated enough, there is little short of Fort Knox that will stop them!
Good security on a commercial level is about protecting those assets that are critical to achieving operational objectives. These could be tangible or intangible assets. On a domestic level, our most valued assets are often family.
When we think about the assets we want to protect, we should think about who or what might want to take, destroy, damage or disrupt them. It could be a low-level opportunist criminal or a complex commercial rival who plans meticulously to disrupt our business activities. We should also consider how they would likely go about achieving their aims. The opportunist thief is likely to use a different methodology to a calculating commercial rival. Still, there is a vast spectrum of options open to those intent on doing a family or business harm.
The three A’s
When we closely examine our assets, adversaries, and the types of actions they would most likely take, we start to develop an understanding of the risks we face and can develop an effective security plan to mitigate those threats.
However, as the saying goes, ‘there is no silver bullet,’ meaning one of the security tools from the extensive security tool bag is unlikely to be very effective on its own. Each layer will have strengths and weaknesses, meaning we will likely need additional layers to compensate for the weaknesses in another layer.
In 1997 James Reason used the principle of Swiss cheese (The type with many holes!) to demonstrate accident causation in the Health and safety industry. He stated that if you line up numerous layers of Swiss cheese and consider the holes as a vulnerability in each layer, that on occasion the holes line up in each layer allowing a breach of the entire collection of layers. Only multiple layers can reduce risk to as low as possible.
The same principle applies to the security industry. There are many options available to the security consultant, but to be effective, each layer must ultimately complement or correct the weakness of another in order to reduce overall risk to an acceptable level.
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Sceptre Protection Ltd
10-14 Andover Road,
Winchester,
Hampshire,
United Kingdom
SO23 7BS