Name one physical security measure organizations may use.

Organizations implement physical security measures to protect their assets, personnel, and sensitive information from unauthorized access, theft, or damage. Security cameras are a fundamental element of physical security. They provide surveillance of physical spaces, allowing organizations to monitor activities in real-time and maintain records of events through video footage. This deterrent effect can significantly enhance security by discouraging potential intruders or malicious activities.

In contrast, the other options listed pertain to different aspects of security. Encryption software is a technique used to protect data in transit or at rest by transforming it into a coded format that is unreadable without the correct decryption key. Firewalls serve as a barrier between a trusted internal network and untrusted external networks, regulating incoming and outgoing traffic to prevent unauthorized access. Antivirus programs are designed to detect and remove malicious software from systems. While all these tools contribute to an organization's security posture, they do not directly protect physical premises or assets, which is the primary focus of physical security measures like security cameras.