Which technology creates a secure tunnel across untrusted networks?

The Virtual Private Network (VPN) is designed to create a secure tunnel across untrusted networks, such as the internet. By encrypting the data being transmitted, a VPN ensures that the information remains confidential and secure from potential eavesdroppers or attackers. The tunneling protocol used by VPNs encapsulates the data packets within a secure layer, providing protection against various threats that may occur when data travels over an unsecured network.

This capability makes VPNs particularly useful for remote access to corporate resources, as they allow users to connect to a private network securely while they are physically outside of it. It enables secure communication even over potentially unsafe connections, ensuring the integrity and confidentiality of the transmitted data.

Other options, while important in their own rights, do not specifically provide a secure tunnel for data traveling across untrusted networks. Firewalls act as barriers to control incoming and outgoing network traffic based on predetermined security rules, but they do not create secure tunnels. Secure Socket Layer (SSL) is a protocol for establishing secure connections between a client and a server, primarily for web traffic, but it does not function as a tunnel across untrusted networks like a VPN does. Data Loss Prevention (DLP) focuses on preventing sensitive data from being lost, misused