The use of warning signs and surveillance cameras fits into the category of controls designed to discourage unauthorized individuals from attempting to compromise or enter into a secure environment.
These measures are considered deterrent controls because they are intended to signal to potential attackers that the area is monitored or has certain security protocols in place, decreasing the likelihood that someone will attempt a breach or unauthorized access. Warning signs communicate a message of possible consequences or surveillance, while security cameras are a visible reminder of monitoring, both of which can deter malicious activities. In contrast, preventive controls would actually stop an incident from happening, such as a firewall preventing unauthorized network access, which is not the primary function of warning signs or security cameras.
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What are deterrent controls?
How do warning signs and surveillance cameras work together?
What is the difference between deterrent controls and preventive controls?