Installing the macOS Big Sur Package: What You Need to Know

When upgrading your macOS version, it's essential to note that this may disable Duo's Mac Logon package. Additionally, offline access for Duo on macOS does not yet support security keys, and Touch ID is not a valid factor for the Duo macOS application.

Duo Factor Support for macOS offers online two-factor authentication using these factor types: Apple Silicon M Series Support for macOS versions 2.0.0 and later include Apple M1 support. For more information, refer to Duo Knowledge Base article 7546.

As of June 30, 2023, Duo will no longer accept TLS 1.0 or 1.1 connections or support insecure TLS/SSL cipher suites. This application communicates with Duo's service on SSL TCP port 443.

When configuring your firewall, it's recommended to avoid restricting outbound access to Duo's service using destination IP addresses or IP address ranges, as these may change over time to maintain our service's high availability.

Consider updating to a newer version of macOS still supported by Apple. Here are some key versions and their corresponding support dates:

* 11.0 (Big Sur): Supported in Duo release 1.1.0

* 12.0 (Monterey): First supported in 1.1.0

* 12.3 (Monterey): First supported in 1.1.1

* 13 (Ventura): First supported in 2.0.0

System Requirements

Duo's Mac authorization plugin version 2.0.0 supports macOS 10.15 (Catalina) and later versions.

Once installed, Duo authentication is required for new console logons but not when unlocking the screensaver or when an already logged-on user wakes the system from sleep.

If you're looking for SSH login protection, consider trying Duo Unix instead of Duo for MacOS. This plugin does not add 2FA for remote SSH connections.

Before downloading and installing Duo for macOS, be sure to read through these instructions carefully.

About Duo Authentication for macOS

Duo authentication adds two-factor authentication to macOS local console logins. With this plugin, you can enjoy enhanced security and peace of mind knowing that your device is protected with an additional layer of verification.

Macos big sur installation package