However, the most effective physical measure that can be taken to prevent human intervention in technology is to lock the technology inside secure premises. Modern technology has provided a wide range of sophisticated devices that can restrict entry to buildings and rooms to authorised persons only. The advantage of the more sophisticated locking systems that use computer systems to validate entry is that they can be used to monitor which individuals have accessed a facility and when. Locks that use biological features go one step further and ensure that only identified and verified individuals can enter a facility. Locks that do not incorporate biological features are not as secure as it is always possible for someone to steal someone else's entry card or access code numbers.
Surveillance is another form of security.
Security guards can be used to verify entry to a facility. Security cameras can be used by security guards to monitor a range of access areas. Sensors can be used to monitor activity and set off alarms if security is compromised. Alarm systems can be set up that can not only ring a local alarm but can also set off an alarm at a remote security firm or police station. While locks and surveillance systems are a good form of security, the overall level of security will only be as good as the weakest point in the security cordon.