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Setting up and changing Multi-Factor Authentication (MFA) in myAMDT

At a glance

  • You can secure your account using either Authenticator App (TOTP) or Email verification. Disabling MFA is possible but not recommended.
  • You can change MFA settings at any time via Account → Multi-Factor-Authentication.
  • If you lose access to your MFA method (e.g., phone, app, or email), contact AMDT Support and provide proof of account ownership.

Initial MFA setup (Immediately after registration)

On your first login, you will be prompted to select an MFA method. You may also choose to disable MFA at this stage (not recommended).

Figure: Multi-Factor-Authentication welcome screen

Choose one of the following options:

  • Option A: Authenticator App (recommended)

    1. Select Set up with App.
    2. On your mobile device, open a TOTP-compatible authenticator (e.g., Google Authenticator, Microsoft Authenticator, Authy, Aegis).
    3. Scan the QR code or manually enter the setup key.
    4. Enter the 6-digit code generated by your app to verify and complete setup.

  • Option B: Email Verification

    1. Select Set up with Email.
    2. A one-time code will be sent to your registered email address.
    3. Enter the code to verify and complete setup.

Info

We recommend using the Authenticator App — it offers the strongest protection, works offline, and follows industry standards.

Changing MFA settings later

You can switch your MFA method or disable it at any time.

  1. Click your user avatar in the top-right corner and select Account.

    Figure: User menu

  2. Select the Multi-Factor-Authentication tile.

    Figure: Account tiles, Multi-Factor-Authentication

  3. On the MFA settings page, choose one of the following:

    • Authenticator App (TOTP)
    • Email Verification
    • Deactivate MFA (not recommended)

Info

The page layout may differ slightly depending on your current MFA method, but the steps remain the same:

  1. Select your preferred method.
  2. Follow the on-screen instructions.

MFA method comparison

Method Security Works offline Requires extra app Recommended for
Authenticator App (TOTP) ★★★ (highest) Yes Yes Daily use, admins, license owners
Email Verification ★★ No No Occasional users
Disable MFA ★ – – Not recommended

Lost Access to MFA?

If you are unable to complete MFA due to lost access to your authenticator app or email:

  1. Contact AMDT via the AMDT contact form at the bottom of the website.

  2. Provide proof of account ownership.

    Acceptable examples include:

    • A request sent from the registered email address
    • A screenshot showing your license number from a running versiondog system or other evidence linking you to the licensed environment

  3. AMDT Support will guide you through identity verification and assist in restoring access.

Troubleshooting

Did not receive email code?

  • Check your spam/junk folder.
  • Verify the registered email address.
  • Request a new code.

Authenticator code invalid?

  • Ensure your phone’s time is set to automatic/synchronized.
  • Wait for the next 30-second code cycle.
  • Re-scan the QR code if necessary.

Missing Set up with App/Email button?

  1. Open Account.
  2. Select Multi-Factor-Authentication again.
  3. Refresh the page.
  4. Confirm you are logged into the correct myAMDT account.

Security tips

  • Keep MFA enabled at all times; only disable it temporarily if absolutely necessary.
  • When changing phones, migrate your authenticator accounts before resetting MFA.
  • Never share one-time codes or QR setup keys.