Thinking clearly · Chapter 4
How can you spot a deepfake?
Look for clues, but do not rely on your eyes or ears to prove authenticity. Verify the source and confirm consequential requests through a contact route you already trust. A convincing face or voice is no longer enough.1
A clue is not a verdict
The FBI lists distorted features, inaccurate shadows, unnatural movement and odd voice patterns as warning signs. It also warns that generated content can be difficult to identify. A flawless-looking clip is not proof that the event or speaker is real.1
Chapter 4 asks what feeds our thinking. My first check is provenance: where did this reach me, who released it, and can I find its full context? I would rather verify the request than gamble on a visual trick.
Check the action as well as the image
An urgent request for money, a code or a move to a new account deserves independent verification. The FBI advises using a separately identified number and confirming new contact details through a previously trusted source.1
For a public claim, look for the original release and independent reporting of the event. Reposting the same clip does not create independent witnesses.
A check you can use
- Pause money transfers and sensitive disclosures.
- Use a known number, not contact details supplied with the suspicious message.
- Record what is verified before sharing the content.
How do you check a deepfake image or audio clip?
Defects can prompt a check, but their absence cannot finish it. Confirm an audio request by another trusted route. Find an image's origin and context. Treat both as evidence to verify, not identity credentials.1

Zafar Alam is a civil engineer and Chartered Construction Manager with about 12 years on major projects. He is the author of What Are We Missing? How to Think More Clearly Before You Decide, planned for 13 February 2027.
Keep thinking
Why did Theranos fail?Chapter 3 · The Bugs in the MachineryDoes AI affect critical thinking?Chapter 14 · Critical Thinking in the AI EraUse this on a real decision
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