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Crooks use math symbols to evade anti-phishing solutions

October 13, 2021

Researchers from anti-phishing cybersecurity firm INKY have detailed a new technique to evade detection in phishing attacks, it leverages using mathematical symbols on impersonated company logos.

The experts analyzed the case of a campaign targeting the customers of the telecommunication giant Verizon, attackers used a square root symbol, a logical NOR operator, or the checkmark symbol itself. The trick adopted by the crooks aims at creating a sort of optical interference that could allow bypassing anti-spam solutions.

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