Encyclopedia of Cybersecurity

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Web Application Firewall

A Web Application Firewall (WAF) is a security appliance, server plugin, or cloud service that protects web applications from a variety of threats, such as cross-site scripting (XSS), SQL injection, and other common attacks. WAFs operate at the application layer (Layer 7) of the OSI model, inspecting HTTP requests and responses to filter and block […]

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Web Security

Web security, also known as website security or web application security, refers to the measures and practices implemented to protect websites, web applications, and web services from cyber threats, attacks, and vulnerabilities. Web security aims to safeguard the confidentiality, integrity, and availability of web assets and data, as well as to prevent unauthorized access, data

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Web Security Gateway

A web security gateway, also known as a web security gateway appliance or web gateway security appliance, is a network security device or software solution designed to protect organizations’ networks, users, and data from web-based threats, malicious content, and unauthorized access to websites and web applications. The primary function of a web security gateway is

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Web Shell

A web shell is a malicious script or program that cybercriminals upload to a compromised web server to gain unauthorized remote access and control over the server’s operating system and files. Web shells are commonly used in cyber attacks to perform various malicious activities, such as executing commands, uploading or downloading files, manipulating databases, and

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Webhook Security

Webhook Security refers to the practices and measures taken to ensure the integrity, confidentiality, and authenticity of webhook-based communication between applications or services over the internet. Webhooks are HTTP callbacks or user-defined HTTP callbacks used by applications to trigger real-time notifications or events between different systems or services. Ensuring webhook security is essential to prevent

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White Hat

“White Hat” typically refers to a type of ethical hacker or cybersecurity professional who uses their technical skills and knowledge for constructive, lawful, and ethical purposes, such as identifying and mitigating security vulnerabilities, defending against cyber threats, and improving overall cybersecurity posture. The term “White Hat” is derived from Western movies, where heroes often wore

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Whitelisting

Whitelisting, in the context of cybersecurity, refers to a security control mechanism that allows only pre-approved or authorized entities, applications, devices, or actions to access or interact with a system, network, or resource, while blocking all other entities by default. In essence, whitelisting creates a list of trusted entities or activities that are explicitly permitted,

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Wireless Security

Wireless security refers to the measures and protocols implemented to protect wireless networks, devices, and data from unauthorized access, interception, and exploitation. With the widespread adoption of wireless communication technologies such as Wi-Fi, Bluetooth, and cellular networks, ensuring the security of wireless connections has become essential to safeguarding sensitive information and maintaining privacy. Key aspects

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Worm

A worm is a type of malicious software (malware) that is designed to self-replicate and spread across computer networks and systems, typically without requiring user interaction. Unlike viruses, which require a host file or program to attach to and execute, worms are standalone programs that can independently propagate and infect vulnerable systems. Worms exploit vulnerabilities

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Written Information Security Program

A Written Information Security Program (WISP) is a comprehensive document outlining an organization’s policies, procedures, and practices for safeguarding sensitive information and maintaining data security. The purpose of a WISP is to establish a framework that ensures the protection of personal and confidential information against unauthorized access, disclosure, alteration, or destruction. Key components typically included

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