What is the relationship between physical security and IT security?

The relationship between physical security and IT security is best captured by the understanding that physical security plays a crucial role in protecting the infrastructure that hosts sensitive data from various physical threats. This includes safeguarding against unauthorized access, theft, vandalism, natural disasters, and other physical risks that could compromise the integrity, confidentiality, and availability of data.

Physical security measures, such as locks, surveillance systems, security personnel, and environmental controls, serve as the first line of defense for IT resources. When physical security is robust, it ensures that only authorized personnel can access servers, data centers, and other areas where sensitive information is stored or processed. This foundational layer significantly reduces the risk of breaches stemming from physical access.

While IT security focuses on protecting data through firewalls, encryption, and cybersecurity protocols, it relies heavily on physical security to prevent unauthorized access that could undermine these digital protections. Therefore, the answer emphasizes the interdependence between physical and IT security, highlighting their collective importance in safeguarding sensitive information.