Cryptographic protocols are an important part of modern cybersecurity. These protocols provide a way for two or more parties to securely exchange information over the internet, protecting it from interception and manipulation by malicious actors. Cryptography involves encoding messages so that only those with the correct key can decode them, making it virtually impossible for unauthorized users to access sensitive data.

The most commonly used cryptographic protocol is Transport Layer Security (TLS). TLS uses public-key cryptography in order to encrypt communications between two points on a network. This means that any message sent over this type of connection will be encrypted before being transmitted across the internet, ensuring that no one but its intended recipient can see its contents. Additionally, TLS also provides authentication and integrity checks which ensure that only authorized users have access to protected resources and verify their authenticity when they do so.

There are several other types of cryptographic protocols available including IPSec (Internet Protocol Security) which is often used for VPNs as well as Secure Shell (SSH), which allows secure remote connections between computers over unsecured networks such as Wi-Fi hotspots or public networks like airports or coffee shops. All these different methods work together in order keep private data safe from prying eyes while allowing legitimate communication between parties without compromising security measures put into place by organizations worldwide.