Cryptography is the practice and study of secure communication techniques in IT, which prevent unauthorized parties from accessing data. It encompasses encryption and decryption, secure coding, hash functions, and digital signatures, protecting information in areas like data transfer, storage and communication.

Level 1: Emerging

At an emerging level, you are familiar with basic concepts of cryptography. You can identify common encryption algorithms and understand the significance of secure communication in maintaining data integrity.

Level 2: Proficient

At a proficient level you are able to effectively implement and manage cryptographic protocols to secure data transmission, ensuring confidentiality, integrity, and authenticity in Information Technology systems.

Level 3: Advanced

At an advanced level you are capable of designing and implementing complex cryptographic systems to secure sensitive information and communications within an organization's IT infrastructure.