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Tag: cybersecurity

Flat-style digital illustration of a shopping bag with a padlock and warning symbol, representing a data breach. Surrounded by icons symbolising personal data, including an ID card, calendar, envelope, and shield ... against a dark circuit-board background.

Diagnostic Command is it Bugged?

Back in the 80's I created a Disk Protection system, exploiting a potential bug in the Firmware of the µPD765A Disk Controller. Looking into this more with todays tools, it seems that the disk record and this specific command isn't implemented as per the specification. Is it my misunderstanding or is there a bug that's gone unnoticed?