Unit 7 Organisation Systems Security P2

P2 Physical security measures that help keep systems secure.

Physical security measures are measures that are taken to keep the physical computers safe, not virtual things  like antivirus software. these can be as simple as just putting locks on the doors of rooms containing computers or as complicated as having a biometric system.
Some more simple measures are things like visitor passes so you can tell when there are unauthorised people in the building as they won't have a visitor pass. These visitor passes can also double as door entry swipe cards if they have a little black programmable strip on the back, this means that each visitor pass can be extremely easily programmed to only give access to certain parts of the building, by only opening certain doors. this means that access to important rooms is restricted as few people as are required there, and it greatly reduces unauthorised people being in restricted areas since they cannot access them.
Sign in/sign out systems are also quite similar in that they can show how many people are in the building at one time, and security guards can guard doors of high importance rooms to make sure that no one breaks in.
 If the information within the system needs to be kept extremely secure then biometrics can be put in place, these can be really expensive and take a long time to implement as all of the current employee's retinas, fingerprints and/or voices (depending on the type of biometric system) need to be scanned. Retina scans take a picture of the back of your eye and these are the most reliable ones as your retina doesn't change. fingerprint scanners can fail eventually as if people bite their fingers it can damage their prints to the extent that the machine will not be able to read it and not allow the person access to the building. Voice recognition is perhaps the worst option of biometrics, as voices can be easily imitated, and your voice can change throughout the day depending on your mood, how tired you are, if you have a cold or a sore throat, and are therefore not very reliable.