(OS)Operating system
Software that manages hardware resources and provides common services for executing various applications on a computer. Windows XP Home Basic and Windows XP Professional are operating systems; so are Android...
(OSINT)Open source intelligence
Relevant information derived from the systematic collection, processing, and analysis of publicly available information in response to known or anticipated intelligence requirements. (Source: DoD Dictionary of Military and Associated Terms.)...
(XDR) Extended Detection and Response
A unified security incident detection and response platform that connects to multiple tools in the security stack via APIs, collects telemetry from each, and attempts to correlate that telemetry into...
(XSS) Cross-site scripting
From the intrusion kill chain model, a malicious code delivery technique that allows hackers to send code of their choosing to their victim’s browser.
abstraction layer
A process of hiding the complexity of a system by providing an interface that eases its manipulation.
account hijacking
A form of identity theft in which a criminal or other attacker obtains control over a user’s online account (normally but not exclusively a financial account).
account takeover prevention
Prevention of the first link in an intrusion kill chain exploitation technique, where an attacker steals valid login credentials from a targeted victim.
acoustic cryptanalysis
A kind of side-channel attack in which an attacker exploits sounds made by hardware (usually keyboards or internal hardware) to defeat encryption.
Active Cyber Defense
An approach to cyber defense that concentrates on detection and mitigation of cyber risks in cyber-relevant (near-real) time. Active Cyber Defense involves placing sensors on one’s own networks, and then...