Glossary

Software designed to perform cryptographic functions.

A related set of hardware, software and supporting infrastructure used for cryptographic communication, processing or storage and the administrative framework in which it operates. Cryptographic systems may be based upon traditional cryptography, post-quantum cryptography or a combination of both.

A quantum computer that is capable of successfully executing attacks against traditional cryptographic systems.

The art or science concerning the principles, means, and methods of rendering plain information unintelligible and for restoring it back into intelligible form.

A process in which transactions for various forms of cryptocurrency are verified and added to the blockchain digital ledger.

A person that an organisation has dealings with, typically via the consumption of goods or services. A customer does not necessarily need to purchase goods or services from the organisation.

A deliberate act through cyberspace to manipulate, disrupt, deny, degrade or destroy computers or networks, or the information resident on them, with the effect of seriously compromising national security, stability or economic prosperity. Note: there are multiple global definitions of what constitutes a cyber attack.

A form of harassment using electronic means, such as the internet (particularly social media sites) or other digital spaces.

Defensive activity designed to protect information and systems against offensive cyber operations.

Malicious cyber activity by state or non-state entities to covertly collect information from an adversary’s computer systems for intelligence purposes. It can include theft for commercial advantage.