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How can I prove to my client that passwords stored in Power Automate Desktop variables are secure?

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Hi everyone,

I’m working on a project using Power Automate Desktop (PAD) where certain actions require storing credentials in variables (to log into servers and applications).

My client is concerned about whether passwords or sensitive values stored in PAD variables are secure and cannot be leaked or accessed by unauthorized parties.

My current flow in development is set to read sensitive data stored in client Password Database Website and store extracted HTML data (Password) as variables in PAD.

Could someone help clarify any of the following?


  • How does Power Automate Desktop protect sensitive variables at runtime and at rest?

  • Are password variables encrypted in the flow files or on the machine?

  • Can other users or processes access these variables?

  • Other that flow action log, what other evidence can I bring forward to my client to show that data stored as variables in PAD are removed after the flow ended?

I’d like to give my client a clear explanation (or official Microsoft documentation, if available) that demonstrates these credentials are protected.

Thanks in advance!

I have the same question (0)
  • David_MA Profile Picture
    14,956 Super User 2026 Season 1 on at
    You should investigate using this as it is more secure than storing the credentials in variables in PAD: Create an Azure Key Vault credential - Power Automate | Microsoft Learn. If you are in a corporate environment, anyone who has admin access to your device would be able to see the variables. Anything client-side is exposed to whoever controls the client.
     
    Keep in mind, nothing is 100 percent secure. Security is about reducing risk, not eliminating it.

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