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February 26, 2026

Hackers Compromise Mexican Government Networks Using AI, Stealing 150GB of Data

The CSR Journal Magazine

A significant breach in cybersecurity has raised alarms regarding the protocols employed by the Mexican government after hackers reportedly exploited AI technology to execute a large data theft. Investigations have revealed that the attackers utilized Anthropic’s Claude AI to infiltrate government systems, resulting in the pilfering of about 150GB of confidential information. This data allegedly included sensitive taxpayer records, various internal documents, and employee login credentials.

Timeline of the Attack

The breach commenced discreetly in December and persisted for several weeks before cybersecurity personnel identified it. Gambit Security, the firm that monitored the hacker’s movements, reported that the individual relied significantly on AI to perform critical tasks. Instead of manually scouring the systems for vulnerabilities, the hacker employed Claude to pinpoint weaknesses in government networks, craft attack scripts, and facilitate the data extraction process.

Use of AI to Bypass Security Measures

Researchers were particularly concerned about the methods employed by the hacker to override the AI’s built-in safeguards. Initially, Claude refused to assist with illegal tasks. Nevertheless, through meticulously crafted prompts, the attacker successfully circumvented these restrictions, effectively compelling the AI to help in the planning and execution stages of the attack. “In total, it produced thousands of detailed reports that included ready-to-execute plans, indicating which internal targets to attack next and what credentials to utilize,” stated Curtis Simpson, the Chief Strategy Officer at Gambit Security.

Response from AI Developers

Anthropic confirmed its awareness of the incident and stated that it took immediate action by terminating the malicious activities and banning all accounts linked to the misuse. The company emphasized that its latest model, Claude Opus 4.6, has been enhanced with stronger safeguards to prevent such exploitation in future instances.

Additional Tools and Techniques Used by the Hacker

Investigators have revealed that Claude was not the sole AI tool in use. The hacker is also believed to have utilized ChatGPT, created by OpenAI, to enhance their technical understanding. This included strategies for navigating intricate computer networks, obtaining necessary access permissions, and adopting methods to evade detection. OpenAI disclosed that it identified attempts to breach its regulations and blocked such activities.

Current Status of Investigation and Official Statements

The identity of the individual behind this breach remains unknown, and no organization has officially accepted responsibility. While there is no confirmed connection, Gambit Security has suggested that the operation may be associated with a foreign state entity. The motivations for the attack also remain ambiguous, raising concerns about the potential exploitation of the stolen information.

Official Responses from the Mexican Government

The official responses from Mexico regarding this incident have been minimal. The country’s national digital agency has not directly commented on the breach but has reiterated its commitment to cybersecurity as a priority. The state government of Jalisco has insisted that its systems remained intact and that the breach only impacted federal networks. Similarly, the national electoral institute of Mexico has confirmed that it has not observed any unauthorized access or breaches in recent times.

Security Vulnerabilities Identified

Meanwhile, Gambit Security has reported the discovery of at least 20 substantial security vulnerabilities in government systems, indicating that the overall situation may be more complex than is being officially conveyed. This incident contributes to rising apprehensions surrounding the potential misuse of advanced AI technologies.

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