Common Criteria (IT Framework) refers to an international standard for evaluating the security properties of information technology products and systems. This framework provides a structured methodology for specifying security requirements, conducting evaluations, and certifying products against these requirements. Knowledge of Common Criteria (IT Framework) is used to ensure that IT products meet defined security standards, facilitating trust and assurance in their deployment across various sectors. It supports organizations in making informed decisions regarding the security of their technology solutions.

Cryptography refers to the practice and study of techniques for securing communication and information by transforming it into a format that is unreadable to unauthorized users. This skill encompasses the development and application of algorithms and protocols that ensure confidentiality, integrity, and authenticity of data. Knowledge of Cryptography is used to protect sensitive information in various domains, including digital communications, financial transactions, and data storage, by enabling secure exchanges and safeguarding against unauthorized access.

Cyber Engineering refers to the discipline that integrates principles of engineering and computer science to design, develop, and maintain secure systems and networks. This skill encompasses the analysis of vulnerabilities, implementation of security measures, and the development of protocols to protect information and infrastructure from cyber threats. Knowledge of Cyber Engineering is used to create resilient systems that ensure data integrity, confidentiality, and availability, while also addressing compliance with regulatory standards.

Cyber Security Systems refer to the frameworks, tools, and controls used to protect digital information, networks, and connected systems from unauthorized access, disruption, or misuse. The skill involves selecting, configuring, and monitoring protective measures so that risks can be identified and managed within an organization. In work settings, the skill is applied to support secure operations, protect sensitive data, and maintain continuity of business activities.

Multilevel security refers to a security strategy that allows access to information based on a user's clearance level. This requires specialized skills to design, implement, and maintain a secure system. It is used in organizations with sensitive information, such as government agencies or military operations. Multilevel security aims to prevent unauthorized access to information while ensuring that users with the proper clearance levels can access the data they need.