# rootkit

> English word · Noun · frequency rank #92,009

## Definitions
1. A set of software tools used by a third party to gain unauthorized access to a computer system and control the system while concealing itself from the user.

## Etymology
From root + kit.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/rootkit