How to Verify a Suspicious WhatsApp Conversation with Screenshots
Fake bank advisors and other scammers have moved to WhatsApp and iMessage. Learn the warning signs and how to get an AI verdict on a whole conversation from a few screenshots.
Scammers have changed channels. As SMS filtering improved, fraud moved to messaging apps: WhatsApp, iMessage, RCS. In France, fake bank advisor scams rose by 159% in 2025 (Cybermalveillance.gouv.fr), and the approach very often starts with an innocent-looking WhatsApp or text conversation. These channels are end-to-end encrypted, so no filter can inspect them along the way. That is precisely why a screenshot is the best way to get a suspicious conversation checked.
The fake bank advisor scam, step by step
This is the scenario currently doing the most damage. It almost always follows the same script:
- Contact out of the blue. A message or call from "your bank's fraud department". The name and logo look right, the tone is professional and reassuring.
- A fabricated emergency. "Suspicious payments are being made from your account right now." Fear is the engine of the whole scam.
- The switch to a private channel. The "advisor" continues on WhatsApp, where no bank ever conducts security operations.
- The fatal request. Transfer your money to a "secure account", read out the code you just received, or approve a payment in your banking app. A real bank never asks for any of these.
Red flags in a conversation
- Pressure to act immediately, before you can think or call anyone
- A request for secrecy: "don't mention this to your branch, the investigation is confidential"
- Any request for codes (SMS codes, card PIN, app validation)
- A "secure account" that money should be moved to: this account belongs to the scammer
- A change of channel: from a call or SMS to WhatsApp
- Messages from a mobile number claiming to be a bank, the police or the tax office
Check the whole conversation, not just one message
A single message can look harmless. The manipulation shows in the sequence: the fake urgency, then the isolation, then the request for money. That's why Luminir now analyzes entire conversations.
Here's how it works:
- Take screenshots of the conversation (WhatsApp, iMessage, SMS, Messenger…): up to 12 images.
- In the Luminir app or on luminir.io, choose Conversation, then Screenshots.
- Add your screenshots in conversation order, from the beginning to the most recent message.
- Our AI reads the images, rebuilds the conversation and checks it against the tactics of fake bank advisors, romance scams, fake family emergencies, investment fraud and blackmail.
- In a few minutes you get a clear verdict (safe, suspicious or dangerous) with the exact messages that triggered the alert.
Your screenshots are analyzed for your security only, never shared, and deleted automatically after a short retention period.
If you are in doubt right now
- Do not transfer anything, do not read out any code, do not approve anything in your banking app.
- Hang up, then call your bank yourself using the number on the back of your card.
- Have the conversation analyzed with Luminir before replying.
- If money has already been transferred, contact your bank immediately and file a police report.
The best protection against manipulation is a second opinion. Luminir gives you one in minutes, whenever you need it.