Security is a broad concept that encompasses various measures and practices implemented to protect individuals, organizations, systems, and assets from potential threats and vulnerabilities. It can refer to physical security, such as guards, locks, and surveillance systems, as well as digital security, including encryption, firewalls, and antivirus software. In the digital realm, security also involves protecting data, networks, and information systems from unauthorized access, cyberattacks, and other malicious activities. Overall, security is essential for safeguarding against risks and ensuring the confidentiality, integrity, and availability of resources.