Contact Gatekeeper Cybersecurity

If you need help installing, activating, or using Gatekeeper, or if you have questions about licensing or business use, you can reach us by email:

Email: gatekeeper-cybersecurity@proton.me

When you write, it helps to include:

• Whether you are a personal user or a business
• Which operating system you are using (Windows, Linux, etc.)
• Which Gatekeeper component you need help with (User Client, Server Client, Licensing, or Website)
• A short description of the issue or question

This inbox is used only for direct Gatekeeper support and contact. Your email address and any details you provide will not be sold, traded, or shared with data brokers.

Responses are handled in the order they arrive. If you are reporting a possible security issue or vulnerability, please clearly state that in the subject line so it can be reviewed as a priority.