Cybersecurity Glossary
Plain-English definitions of the most important cybersecurity concepts: from Attack Surface Management to Zero Trust.
A
- API Security
API security is the practice of protecting your application programming interfaces from attacks, misuse, and data exposure through authentication, authorization, rate limiting, input validation, and monitoring.
- Attack Surface Management
Attack Surface Management (ASM) is the continuous discovery, inventory, classification, and monitoring of all internet-facing assets that belong to an organisation to reduce exposure to threats.
B
C
- Cloud Security
Cloud security encompasses the policies, technologies, controls, and best practices used to protect data, applications, and infrastructure hosted in cloud environments (IaaS, PaaS, SaaS).
- Compliance Automation
Compliance automation is the use of technology to continuously monitor, assess, and enforce adherence to regulatory requirements and security frameworks: replacing manual audits with real-time, automated evidence collection.
- CVE
CVE (Common Vulnerabilities and Exposures) is a public catalog of known cybersecurity vulnerabilities. Each entry gets a unique identifier like CVE-2024-12345 so teams can track and discuss specific flaws consistently.
- Cyber Threat Hunting
Cyber threat hunting is the proactive, human-led process of searching through networks, endpoints, and datasets to find advanced threats that have evaded automated security controls.
D
- Dark Web Monitoring
Dark web monitoring is the practice of scanning dark web marketplaces, forums, paste sites, and Telegram channels for leaked credentials, data dumps, and threat actor chatter that may impact an organisation.
- Data Loss Prevention
Data Loss Prevention (DLP) is a set of tools and policies designed to detect and prevent the unauthorised transmission, sharing, or exfiltration of sensitive data outside an organisation's boundaries.
- Digital Risk Protection
Digital Risk Protection (DRP) is a cybersecurity discipline that identifies and mitigates threats targeting an organisation's digital presence: including brand impersonation, data leaks, social media fraud, and rogue apps.
- DMARC
DMARC (Domain-based Message Authentication, Reporting & Conformance) is an email authentication protocol that protects domains from unauthorised use such as phishing and spoofing.
E
I
- Identity and Access Management
Identity and Access Management (IAM) is a framework of policies, processes, and technologies that ensures the right individuals have appropriate access to technology resources at the right time and for the right reasons.
- Incident Response
Incident Response (IR) is the structured process your organization follows to detect, contain, remove, and recover from a cybersecurity incident while limiting damage and downtime.
M
O
P
- Penetration Testing
Penetration testing is a simulated cyberattack against your systems, performed with permission and a defined scope, to find exploitable weaknesses before real attackers do.
- Phishing
Phishing is a social engineering attack in which a threat actor impersonates a trusted entity via email, SMS, or fake websites to trick victims into revealing credentials, financial data, or installing malware.
R
S
- SaaS Security
SaaS security is the set of practices and tools you use to protect data, manage access, and enforce policies across your Software-as-a-Service applications, including both approved and unapproved apps.
- Security Awareness Training
Security awareness training teaches employees how to recognize and respond to cybersecurity threats, including phishing, social engineering, and unsafe data handling.
- Shadow IT
Shadow IT is the use of IT systems, software, devices, or cloud services inside your organization without explicit approval from your IT or security team.
- SIEM
SIEM (Security Information and Event Management) is a platform that collects logs from across your IT infrastructure, correlates them in real time, and flags suspicious patterns that indicate an attack.
- SOC
A Security Operations Centre (SOC) is the team and facility that monitors your environment for threats around the clock, detects suspicious activity, investigates alerts, and coordinates response.
- Social Engineering
Social engineering is a manipulation technique that exploits human psychology: trust, fear, urgency, or curiosity: to trick individuals into revealing confidential information, granting access, or performing actions that compromise security.
- Supply Chain Attack
A supply chain attack is a cyberattack that targets an organisation by compromising a trusted third-party vendor, software provider, or service in the supply chain rather than attacking the organisation directly.
T
V
- Vendor Risk Management
Vendor Risk Management (VRM) is the process of identifying, assessing, monitoring, and mitigating the cybersecurity and operational risks introduced by third-party vendors, suppliers, and partners.
- Vulnerability Management
Vulnerability management is the ongoing work of finding, ranking, fixing, and verifying security weaknesses in your systems, applications, and infrastructure.