Forbes contributors publish independent expert analyses and insights. Davey Winder is a veteran cybersecurity writer, hacker and analyst. Update, Nov. 24, 2024: This story, originally published Nov.

Google security alerts used in new Gmail hack. Update, April 22, 2025: This story, originally published April 19, has been updated with expert comment regarding DKIM validation, new information ...

Many users report that they received an email from Google informing them that a new card was added to their account despite not adding any recently. Google has shared ...