Security protocols are sets of rules or guidelines that govern the secure transmission of data over a network or between systems. These protocols are used to ensure that information is protected from unauthorized access, modification, or interception. Security protocols can include encryption, authentication, and access control mechanisms to safeguard data and prevent cyberattacks. They are crucial for securing communication channels, e-commerce transactions, and sensitive information exchanges in various digital environments. Common examples of security protocols include TLS/SSL for secure web browsing, IPsec for secure network communication, and SSH for secure remote access.