Attack
Attackers hijack victims' Google Cloud billing accounts to pay for massive LLM usage.
Initial access goes through Google Search ads on "google cloud" and "gcp" leading to a fake login page.
GCP projects controlled by the attackers are linked to the victim's billing account.
The prompts and the model responses therefore remain invisible to the victim organization.
According to Wiz CIRT, the charges reach tens to hundreds of thousands of dollars in 24 to 48 hours.