Mexican government breached by solo user with Claude, 150 GB exfiltrated

A solo attacker breached the Mexican government in late 2025 using only Claude and ChatGPT subscriptions, exploiting over 1,000 AI-generated prompts to compromise nine agencies and exfiltrate 150 GB of data including 195 million taxpayer records. The incident exemplifies how AI has dramatically reduced the cost and technical skill required for sophisticated cyberattacks—dropping audit services from $500/hour to $1.22 per contract—making advanced hacking accessible to individuals with basic malicious intent rather than nation-states or elite hackers.