Cybersecurity is essential for protecting sensitive information in modern healthcare systems. Hospitals use computer networks, electronic records, and connected medical devices that may be exposed to cyberattacks. Computer science provides several security techniques, including encryption, authentication, access control, and intrusion detection. Encryption protects data from unauthorized reading, while authentication verifies user identities and access control limits the information that each user can view. Implementing these technologies helps maintain patient confidentiality and system reliability. Healthcare organizations must also update their software, monitor suspicious activities, and develop effective security policies.