Cybersecurity Glossary

Cybersecurity is an increasingly critical concern in our modern digital age. With more and more of our lives taking place online, protecting our personal and sensitive information from cyber threats has become more important than ever before. However, the world of cybersecurity is vast and complex, and it can be challenging for the average person to understand all the terminology and jargon that comes with it.

That’s why in this article, we’ll be exploring some of the most important cybersecurity terms that everyone should know. Whether you’re a business owner looking to protect your organization’s data or an individual trying to keep your personal information secure, understanding these key terms is crucial for staying safe online. So, let’s dive in and start exploring the world of cybersecurity.

Term Description
Access Control The process of limiting access to resources based on user identity and permissions
Advanced Persistent Threat (APT) A sophisticated and sustained cyberattack by a skilled and determined threat actor
Adware Unwanted software that displays advertisements on a user’s computer or device
Antivirus Software designed to detect, prevent, and remove malicious software from a computer or device. Here is a list of the best free antivirus software.
Application Security The measures taken to protect applications from attacks and vulnerabilities
Asset Anything of value to an organization, including hardware, software, and data
Audit Trail A record of all events and actions taken in a system or application
Authentication The process of verifying a user’s identity to gain access to a system or application
Authorization The process of granting or denying access to a resource based on a user’s identity and permissions
Backdoor A hidden and unauthorized entry point into a computer system
Botnet A network of infected devices controlled by a hacker for malicious purposes
Brute Force Attack A trial-and-error method of guessing login credentials to gain unauthorized access to a system or application
Bug Bounty A program that rewards individuals for discovering and reporting security vulnerabilities
Certificate Authority (CA) An organization that issues digital certificates to verify the identity of individuals or entities on the internet
Cloud Security The measures taken to protect data and applications in a cloud computing environment
Command and Control (C&C) A server that remotely controls and communicates with malware-infected devices
Cross-Site Scripting (XSS) A type of injection attack in which malicious scripts are inserted into a web page viewed by other users
Cryptography The practice of encoding and decoding information to keep it secure
Cyber Espionage The theft of confidential or sensitive information from a foreign government or company for political, economic, or military advantage
Cyber Insurance Insurance that provides financial protection against losses due to cyber incidents
Cyber Intelligence The practice of collecting and analyzing cyber threat information
Cyber Threat Any action that poses a risk to the confidentiality, integrity, or availability of data or systems
Cyber Threat Intelligence (CTI) Information about potential cyber threats and how to prevent or mitigate them
Cyberattack An attempt to exploit vulnerabilities in a system or application for malicious purposes
Cybercrime Criminal activities that involve or target computers, networks, or other digital devices
Cybersecurity Framework A set of guidelines and best practices for managing cybersecurity risks
Data Breach The unauthorized access or release of sensitive or confidential information
Data Encryption The process of converting plaintext into ciphertext to protect data from unauthorized access
Data Loss Prevention (DLP) The practice of preventing sensitive data from leaving an organization’s network
Denial of Service (DoS) An attack that overwhelms a system or network with traffic to prevent legitimate users from accessing it
Denial-of-Service (DoS) An attack that floods a network or server with traffic to make it unavailable to legitimate users
Digital Forensics The process of analyzing digital devices or data to gather evidence for legal or investigative purposes
Distributed Denial-of-Service (DDoS) An attack that uses multiple compromised devices to flood a network or server with traffic
Encryption The process of converting information into a coded format to keep it secure and confidential
Encryption Key A string of characters used to encrypt and decrypt data
Endpoint Security The measures taken to secure devices that connect to a network, such as laptops, smartphones, and IoT devices
Exploit A software or technique that takes advantage of a vulnerability in a system or application
Firewall A network security system that monitors and controls incoming and outgoing network traffic
Hacking Unauthorized access to a computer system or network
Identity Theft The unauthorized use of someone’s personal information to commit fraud or other crimes
Incident Response The process of detecting, investigating, and responding to a cyber incident
Insider Threat A threat from a trusted insider, such as an employee or contractor, who misuses their access to commit a cybercrime or leak sensitive information
Internet of Things (IoT) The network of physical devices, vehicles, and appliances embedded with sensors, software, and connectivity
Intrusion Detection System (IDS) A network security system that detects and alerts administrators to suspicious activity
Keylogger A type of malware that records keystrokes to capture sensitive information such as passwords
Malvertising The use of malicious advertisements to distribute malware
Malware Any software designed to harm a computer system, network, or device
Man-in-the-Middle (MitM) An attack in which an attacker intercepts and can potentially eavesdrop or manipulate the communication. Learn more about MitM attacks.
Mobile Security The measures taken to protect mobile devices, such as smartphones and tablets, from cyber threats
Multi-Factor Authentication (MFA) A security mechanism that requires users to provide multiple forms of identification to gain access to a system or application
Network Security The measures taken to protect a network from unauthorized access or attacks
Network Segmentation The practice of dividing a network into smaller segments to reduce the impact of a cyber attack
Open Source Software Software that is distributed with its source code, allowing users to modify and distribute it
Password A secret code used to gain access to a system or application. You can use our secure password generator tool to protect your accounts.
Patch A piece of software that is released to fix a vulnerability or bug in a system or application
Payment Card Industry Data Security Standard (PCI DSS) A set of standards for securing credit card transactions
Penetration Tester An individual who performs penetration testing
Penetration Testing The practice of simulating an attack on a system or application to identify vulnerabilities and weaknesses
Phishing A social engineering technique in which an attacker poses as a trustworthy entity to obtain sensitive information
Physical Security The measures taken to protect physical assets, such as buildings and servers, from unauthorized access
Privacy The right to control personal information and how it is collected, used, and shared
Public Key Infrastructure (PKI) A system for managing digital certificates and public keys
Ransomware A type of malware that encrypts a victim’s files and demands payment in exchange for the decryption key
Ransomware-as-a-Service (RaaS) A type of ransomware that is distributed as a service by a third-party provider
Red Team A group of individuals who simulate attacks on a system or application to identify weaknesses
Risk Assessment The process of identifying and evaluating potential risks to an organization’s information assets
Rootkit A type of malware that provides unauthorized access to a computer system
Secure Sockets Layer (SSL) A protocol used to encrypt data transmitted over the internet
Secure Sockets Layer/Transport Layer Security (SSL/TLS) A protocol for securing communications over the internet
Security Audit A comprehensive evaluation of a system or application’s security posture
Security Operations Center (SOC) A facility that is responsible for monitoring and analyzing an organization’s security posture
Security Policy A set of rules and guidelines that define how an organization’s assets should be protected
Social Engineering The use of psychological manipulation to trick people into divulging sensitive information or performing actions that benefit the attacker
Software-as-a-Service (SaaS) A software delivery model in which applications are hosted by a third-party provider and accessed over the internet
Spam Unsolicited messages sent over email, text message, or other electronic communication channels
Spear Phishing A targeted form of phishing that is tailored to a specific individual or group
Spoofing The act of impersonating another user or device to gain unauthorized access or evade detection
Spyware A type of malware that secretly monitors a user’s activity and captures sensitive information
SQL Injection An attack that exploits vulnerabilities in a database to execute malicious SQL statements
SSL Certificate A digital certificate that verifies the identity of a website or application and encrypts data transmitted between the user and the website
Threat Actor An individual or group responsible for a cyber attack
Threat Intelligence Information about potential and actual cyber threats that is collected, analyzed, and disseminated to security professionals
Tor An anonymizing network that is used to conceal a user’s identity and location
Trojan Horse A type of malware that is disguised as legitimate software
Two-Factor Authentication (2FA) A security mechanism that requires users to provide two forms of identification to gain access to a system or application
Unified Threat Management (UTM) A security platform that combines multiple security functions into a single solution
User Behavior Analytics (UBA) The practice of monitoring user behavior to detect signs of a potential cyber attack
Virtual Private Network (VPN) A network security tool that allows users to access a private network over the internet
Virus A type of malware that self-replicates and spreads to other devices
Vulnerability A weakness in a system or application that can be exploited by an attacker
Vulnerability Assessment The process of identifying and evaluating vulnerabilities in a system or application
War Driving The act of driving around with a wireless-enabled device to find and exploit unsecured wireless networks
Watering Hole Attack An attack that targets a specific group of users by infecting websites that they are likely to visit
Web Application Firewall (WAF) A firewall that protects web applications from attacks
Whaling A targeted form of phishing that is directed at high-level executives or individuals with access to sensitive information
White Hat Hacker An individual who uses their skills for ethical hacking and security testing
Wi-Fi Protected Access (WPA) A security protocol for securing wireless networks
Worm A type of malware that self-replicates and spreads to other devices over a network
Zero-Day Exploit An exploit that takes advantage of a previously unknown vulnerability in a system or application
Zombie A compromised device that is under the control of a hacker and can be used to launch attacks on other devices
Zone A segment of a network that is isolated from other segments to increase security and reduce the impact of a cyber attack