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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 technology that securely extends a private network across a public network, allowing users or multiple networks to connect as if they were directly linked to the private network. A VPN creates an encrypted tunnel that protects data integrity and confidentiality while in transit. This enables remote users to securely access private resources and allows organisations to securely connect multiple office locations over the internet.
Example: A company uses a VPN to connect its headquarters' network with branch offices, allowing employees to share resources and data securely between locations.
See also: Tunnelling, VPN Service
A commercial offering provided by third-party companies that allows users to encrypt their internet traffic, mask their IP address, bypass geographical restrictions, or attempt to maintain privacy while browsing the internet. However, while a VPN service can help protect data in transit and obscure a user's location, it carries its own risks and does not guarantee complete anonymity or security from all types of cyber threats.
Example: A user subscribes to a VPN service to encrypt their internet connection while using public Wi-Fi at an airport, preventing potential attackers from intercepting their sensitive information.
See also: VPN
The process of sending data through a secure, encrypted channel within a network, often used in VPNs.
Example: A remote worker uses a VPN to tunnel their internet traffic securely through the company's network.
See also: VPN