- Wave-Division Multiplexing (WDM) A technique in fiber optics that combines multiple optical signals so they can be transmitted simultaneously over a single fiber. The signals are separated by using different wavelengths (colors) of light, which helps increase the overall capacity and speed of data transmission.
- Weak key attack An attack on cryptographic algorithms where specific keys, known as weak keys, lead to patterns or simplifications in the encrypted data. This can make decryption without the intended key more feasible and hence compromise the effectiveness of the cryptographic protection.
- Weakly typed - Programming languagesIn weakly typed programming languages, variables are not bound to a specific data type; they can hold any type of value at run time. The programming language automatically converts types as needed during script execution, which can lead to unexpected behavior if not carefully handled.
- Web application security The process of protecting web applications by detecting, preventing, and responding to cyber threats. This discipline encompasses the security measures taken throughout the application's lifecycle, addressing vulnerabilities to prevent attacks such as SQL injection, cross-site scripting, and data breaches.
- Web hosting A service that enables organizations and individuals to post a website or web page onto the internet. A web host, or web hosting service provider, provides the technologies and services necessary for the website or webpage to be viewed on the internet.
- Web proxy An intermediary that sits between a user's device and the internet, intercepting requests and responses, often to provide functionalities like caching, security, or anonymity. It can be used to control, accelerate, or secure internet navigation, and can also mask the user's original IP address.
- Web risk assessment The process of identifying, analyzing, and understanding the risks associated with the use of web applications in an organization. The objective is to determine the potential impact of these risks and formulate strategies to mitigate or eliminate them.
- Web security gateway A security solution that prevents unsecured traffic from entering an internal network of an organization. It is used to protect against web-based threats such as viruses, worms, Trojans, and other malicious software by monitoring web traffic at the application level to detect and block anything malicious.
- Web server A computer that stores, processes, and delivers web content, such as HTML pages, images, and files, to clients on the internet. It is used to host and serve websites and web applications. Examples include Apache, IIS, and Nginx.
- Well-known ports The standardized network port numbers used by internet protocols to identify and communicate with specific services and applications. It is used to ensure that network traffic is routed to the correct destination on the network. Examples include port 80 for HTTP, port 443 for HTTPS, and port 22 for SSH.
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