"Click this file link" message grants a stranger permanent access to your email — without your password
A DM impersonating a journalist, official, or known contact sends a "file-sharing link." Clicking opens a real OAuth consent screen. Clicking Allow grants the attacker read/write access to your email and files — access that survives a password change and MFA reset.
Also known as: OAuth consent phishing, app permission phishing, consent phishing attack, malicious OAuth grant
Already happened to you? Do this in the next few minutes
- 1 Call your bank or card's fraud line right now. Use the number on the back of your card — not any number from the message or caller. Ask them to stop or reverse the payment and freeze the account.
- 2 If you paid by gift card, wire, or an app (Zelle, Venmo, Cash App): contact that company immediately and report it as fraud. Acting fast sometimes recovers the money.
- 3 Report to the FBI at ic3.gov and the FTC at reportfraud.ftc.gov. The sooner, the better.
What to do right now
- 1 Go to myaccount.google.com → Security → Third-party apps with account access and revoke any app you did not intentionally authorize
- 2 For Microsoft: visit myapps.microsoft.com and remove unfamiliar app authorizations
- 3 Before clicking Allow on any OAuth consent screen, read the list of permissions carefully — legitimate file-sharing services do not need permission to send emails or delete files
- 4 Treat any unsolicited file-sharing DM — even from a known name — with the same skepticism as an email attachment from a stranger
- 5 After revoking the rogue app, review your Sent folder and any shared documents for activity you did not initiate
- 6 Report to the FTC at https://reportfraud.ftc.gov and the FBI's IC3 at https://www.ic3.gov.
Red flags
- ⚠ An unsolicited DM from someone impersonating a public figure, government contact, or journalist asks you to open a file link
- ⚠ The link leads to a standard Google or Microsoft OAuth consent screen asking permission to read your email or files
- ⚠ You cannot explain why an unfamiliar app appears in your authorized applications list
- ⚠ Contacts report receiving file-sharing requests from your account that you did not initiate
- ⚠ You see sent emails you do not recall writing, or calendar events you did not create
- ⚠ Changing your password does not stop the unusual activity — because no password was stolen
Sources
- FBI IC3 — PSA260901: Malicious Cyber Actors Gain Access to Victim Accounts Through Consent Phishing (Sep 1, 2026)
- Help Net Security — Attackers are going after prominent individuals through OAuth phishing, FBI warns (Sep 2, 2026)
- DEV Community — OAuth Consent Phishing: The Attack a Password Change Does Not Fix (2026)
- NewsNation — FBI warning: OAuth consent phishing lets hackers bypass passwords (Sep 2026)
- Emerging-signals triage — 7 Google OAuth phishing clusters detected (Oct 16–18, 2026)