TERM

virus

A computer program that can replicate itself, infect a computer without permission or knowledge of the user, and then spread or propagate to another computer.

Updated

Jan 06, 2026

Senses

Sense 1

A computer program that can replicate itself, infect a computer without permission or knowledge of the user, and then spread or propagate to another computer.

NICCS (CISA) Cybersecurity Vocabulary

Bibliography

NICCS (CISA) Cybersecurity Vocabulary
Accessed Jan 06, 2026Quoted
NICCS glossary export (CSV)
https://niccs.cisa.gov/rest/vocab/export-csv
NICCS is a CISA (DHS) program. Individual glossary entries include a "From" attribution (e.g., CNSSI 4009, NIST SPs, NICE Framework). Treat "From" values as upstream provenance and verify before quoting large portions of text.
Source: NICCS (CISA) Cybersecurity Vocabulary (niccs.cisa.gov).