Information security is essential for protecting sensitive data from unauthorized access, disclosure, alteration, and destruction. It encompasses policies and procedures that ensure the confidentiality, integrity, and availability of information. Key practices include encryption, access controls, regular security audits, and employee training on safe data handling. Information security safeguards personal, financial, and business data, preventing data breaches and cyber attacks. By prioritizing information security, organizations can protect their assets, maintain customer trust, and comply with regulatory requirements, ensuring a secure and resilient digital environment.