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A laptop showing a padlock on a diagnostic screen, cabled to an unbadged grey saloon in a workshop: the diagnostic port as one of the vehicle's attack surfaces.

ISO/SAE 21434: Automotive Cybersecurity Explained

A connected vehicle is an attack surface on wheels. This article explains what ISO/SAE 21434 actually governs and why the five-minute read matters before you go deeper.

6 minOct 19, 2026