The FREE Cybersecurity Glossary by Thor Pedersen!

Checksum: A calculated value that is used to determine the integrity of data. This value is computed from the binary sequence of a digital file or message, creating a unique signature of sorts. When the data is transferred or retrieved, the checksum is recalculated and compared with the original. If the values match, the data is considered intact; if they don't, it indicates that the data has been corrupted or tampered with during transmission or storage.

Check word: A data verification method used to detect errors after data transmission or storage. It functions like a check digit but applies to a word or string of characters instead of just a number. By calculating and comparing a check word from a data string, errors such as corruption or tampering can be identified, enhancing data integrity and security.

Chief Executive Officer (CEO): The highest-ranking executive in a company or organization, responsible for making major corporate decisions, managing overall operations and resources, acting as the main point of communication between the board of directors and corporate operations, and being the public face of the company. The CEO is often elected by the board and its shareholders.

Chief Financial Officer (CFO): The senior executive responsible for managing an organization's financial operations and reporting, including financial planning and analysis, accounting, and budgeting. They often work closely with the CEO and other senior executives to develop and implement strategic plans and policies.

Chief Information Officer (CIO): The senior executive responsible for overseeing an organization's information technology (IT) strategy, policies, and operations. They work closely with the CEO and other senior executives to develop and implement IT solutions that align with the organization's business goals and objectives.

Chief Information Security Officer (CISO): The senior executive responsible for overseeing an organization's information security strategy, policies, and operations. They work closely with the CIO and other senior executives to develop and implement security solutions that protect the organization's sensitive data and assets.