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Internet and VPN
A virtual private network (VPN) is an Internet security service that creates an encrypted connection between user devices and one or more servers. VPNs can securely connect a user to a company’s internal network or to the public Internet.
Businesses typically use a VPN to give remote employees access to internal applications and data, or to create a single shared network between multiple office locations. In both cases, the ultimate goal is to prevent web traffic — particularly traffic containing proprietary data — from being exposed on the open Internet.
Why are VPNs necessary to accomplish this? Take remote employees as an example. When employees work on-premises, they can connect their computer and mobile device directly to the business’s internal network. However, if an employee works remotely, their connection to that internal network must take place over the public Internet, potentially exposing their traffic to on-path attacks and other methods of snooping on sensitive data. Encrypting that traffic with a business VPN or another security service keeps it safer from prying eyes.