Google analysts warn LLMjacking is inflating enterprise AI bills

On September 30, 2026, ZDNet's AI section published a report on LLMjacking and its effect on enterprise AI bills. The report relays a warning from Google analysts: stolen AI credentials are being sold on underground markets, and the charges those credentials generate end up being paid by businesses. According to the analysts cited in the piece, LLMjacking can push a company's AI bill up quickly.

The article does not stop at the warning. It also sets out concrete ways to identify LLMjacking and stop it, aimed at teams that need to catch unauthorized use of their AI accounts before the costs pile up. That detection and prevention guidance is the second main element of the report, alongside the warning from Google analysts.

As of this report, that is where matters stand: Google analysts have raised the alarm, ZDNet has covered it, and advice on spotting and blocking the activity has been published. The report does not say how the credentials were obtained, which companies were affected, or how widespread the practice has become. No further developments appear in the material available.