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password managers guide

The Fake Vault Login Is How Password Managers Get Emptied

Sam OkonkwoSam Okonkwo· Security Researcher· Updated January 16, 2025· 10 min read

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Quick take

Phishing pages now impersonate vault unlocks. Use the OS app or a bookmark you made, not an email button. Bitwarden is the example — its extension should fill only on the real domain. If you typed the master password into a costume, change it and assume the vault was copied. GUIDEORA does not host your vault.

The one password that is worth a costume

Thieves used to want Netflix. Now they want the vault that contains Netflix, the bank, and HR. A lookalike unlock is efficient crime.

Auto-fill that does not check the domain is how the costume wins. Official apps and strict extensions exist for this cartoon.

From the record

If you had to click mail to open the vault, you did not open the vault. You opened a form.

GUIDEORA rule for vault phishing

Open like a paranoid clerk

Desktop/mobile app first. Bookmark the web vault if you must use web. Never catch up on 'security alerts' from the inbox. Hardware keys and passkeys reduce how often you type the master password into a page.

A lookalike password-manager login page
The padlock was real. The domain was a costume.

Email button

Suspect

OS app

Safer open

Extension

Domain-bound

Master

The whole kingdom

  • Change the master password from a device you trust if you slipped.
  • Revoke sessions in the real vault.
  • Export is now the thief's job — freeze banks anyway.
  • 2FA on the vault is not optional after this.

Bitwarden as a domain-checked extension

Bitwarden currently uses site matching so it should not happily fill a lookalike. That is a reason it is in this story — not a guarantee against a tired human. Prefer the desktop app for unlock on weird days.

URI match detection can be too loose if you set it that way. Do not.

Pros

  • +Apps beat email buttons
  • +Match detection exists for this
  • +Bitwarden currently documents URI matching in the open

Cons

  • −Tired humans still type
  • −Web vault is a larger target than the app
  • −A copied vault is a bad week even after you rotate

No mail buttons. Ever.

Open the app you installed. Bitwarden is the example. GUIDEORA does not unlock it for you.

Editor take

The kingdom has one door

Fake vault pages harvest master passwords. Use the OS app. Bitwarden is the example. Confirm live match rules.

See Bitwarden's current plan