Overview

Transport Layer Security (TLS) is a widely-used protocol for securing network communications, providing data privacy and integrity between applications. TLS has undergone several revisions, with TLS 1.2 being the most widely-used and secure version.

In PowerShell, you can specify the security protocol used by the System.Net.ServicePointManager class, which is responsible for managing network connections. The following command sets PowerShell to use TLS 1.2:

[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12

By setting the security protocol to TLS 1.2, you can ensure that your network communications are secure and protected from potential threats such as eavesdropping, tampering, and impersonation. TLS 1.2 provides enhanced security features such as perfect forward secrecy, stronger cryptographic algorithms, and the removal of known vulnerabilities present in earlier versions of TLS.

In addition to TLS 1.2, newer versions of TLS are available in PowerShell, including TLS 1.3. To set PowerShell to use TLS 1.3, you would run the following command:

[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls13

It is important to note that not all systems support TLS 1.3, and some may require an update to support this newer version of TLS. Additionally, you should always consider compatibility with the systems you are communicating with when selecting the security protocol.

By setting PowerShell to use TLS 1.2 or 1.3, you can enhance the security of your network communications and protect your data. It is recommended to use the latest available version of TLS to take advantage of the latest security features and protections.