Mohamed Sharaf

Phishing just got better grammar

ChatGPT writes a perfect email in any language in seconds. “Look for spelling mistakes” is no longer useful advice.

· 1 min read

For years the first tip in every awareness training was “look for bad grammar and spelling”. ChatGPT just made that tip useless. Anyone can now produce a polite, perfectly written email in English, Arabic or German, in a few seconds, tuned to sound like your finance department.

So we need checks that don’t depend on how the email reads:

  1. Who really sent it? Look at the actual address, not the display name.
  2. What does it ask for? A login, a payment, a changed bank account, a gift card, a file to open. Those are the red flags, however nice the writing.
  3. Is it urgent or secret? Pressure is still the attacker’s best tool.
  4. Verify on a different channel. Call the person on a number you already know.

On the technical side, set up SPF, DKIM and DMARC so nobody can send as your own domain, and show a clear “external sender” banner on mail from outside.

The emails will keep getting better. The questions above don’t care.

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