The ECCouncil Certified Cyber Security Technician (212-82) exam tests your understanding of core cybersecurity practices, tools, and techniques. One of the key domains included in this certification is cryptography. This fundamental concept helps protect data through encoding, ensuring that sensitive information remains secure during transmission and storage. Understanding how cryptography works and how it is applied in real-world scenarios is essential for passing the CCT exam and succeeding in cybersecurity roles. This guide explains what cryptography is, how it functions, and why it matters for the ECCouncil 212-82 exam.