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Glossary of terms and definitions for IT (Information Technology), the Internet and cyber security.
This glossary provides more than 480 clear and concise definitions of commonly used terms in the fields of information technology, the internet, and cyber security. It is designed to support users of all levels in understanding key concepts, technical jargon, and acronyms frequently encountered across digital platforms and security-related discussions. Whether you are a business owner, student, professional, or simply interested in the digital landscape, this resource aims to enhance your knowledge and confidence in navigating the ever-evolving world of technology.
A group of cyber security professionals that integrates the functions of both the Red Team (attackers) and Blue Team (defenders) to enhance an organisation's security posture. The Purple Team facilitates collaboration and information sharing between the Red and Blue Teams to identify vulnerabilities, improve defences, and ensure effective threat mitigation. Their role is to ensure that offensive testing (Red Team) directly informs defensive strategies (Blue Team).
Example: After the Red Team conducts a simulated phishing attack and successfully compromises user credentials, the Purple Team helps the Blue Team improve email filtering and employee training to prevent future incidents.
A group responsible for defending an organisation's systems and networks by identifying and mitigating security threats.
Example: The blue team monitors network traffic for suspicious activity and responds to any detected threats.
See also: Red Team, Purple Team
A group of security professionals that simulates real-world attacks on an organisation to test its defences and identify vulnerabilities.
Example: The red team launches a mock phishing campaign to see if employees will click malicious links, helping improve training and awareness.
See also: Blue Team, Purple Team