Definition(s)
Denial of Service
An attack that prevents or impairs the authorized use of information system resources or services.
Adapted from: NCSD Glossary.
Source: NICCS™ Portal Cybersecurity Lexicon, National Initiative for Cybersecurity Careers and Studies (https://niccs.us-cert.gov/glossary) as of 11 November 2015, Global Standards
Denial of Service
Prevention or interruption of authorized access to a system resource or the delaying of system operations and functions [11].
- NOTE: In the context of industrial automation and control systems, denial of service can refer to loss of process function, not just loss of data communications.
Source: ANSI/ISA–99.00.01–2007, Security for Industrial Automation and Control Systems, Part 1: Terminology, Concepts, and Models, 29 October 2007. National Standard