ChatGPT-4o — Cyber Threats, Attacks & Incidents

Threat entity extracted from intelligence sources

Frequency
4
occurrences
First Seen
November 6, 2025
Last Seen
March 24, 2026

ChatGPT-4o is a technology platform tracked across 4 threat clusters and 4 intelligence report mentions on ThreatCluster. First observed November 6, 2025; most recent activity March 24, 2026.

Overview

ChatGPT-4o is a widely used AI chatbot platform. Security analyses identify seven critical vulnerabilities in ChatGPT that could enable data theft, session hijacking, and exposure of user data, highlighting serious privacy and data-security risks for both consumers and enterprises relying on the service.

Related Threat Clusters

  • Deepfake X-Rays Deceive Radiologists and AI Models

    A study published in Radiology reveals that both radiologists and multimodal large language models (LLMs) struggle to distinguish AI-generated deepfake X-ray images from authentic ones. The study involved 17…

    9 articles · Updated March 24, 2026
  • Seven Vulnerabilities in ChatGPT Expose User Data to Attack

    Tenable Research identified seven vulnerabilities in OpenAI's ChatGPT models that could allow attackers to steal personal data and manipulate conversations. These flaws, affecting ChatGPT-4o and ChatGPT-5, include…

    4 articles · Updated November 6, 2025
  • Seven Critical Vulnerabilities in ChatGPT Expose User Data to Theft

    Tenable Research identified seven vulnerabilities in OpenAI's ChatGPT models, including ChatGPT-4o and ChatGPT-5, that could lead to data theft and hijacking of user interactions. These vulnerabilities, collectively…

    3 articles · Updated November 7, 2025
  • Seven ChatGPT Vulnerabilities Expose User Data to Theft and Hijacking

    Tenable Research identified seven critical vulnerabilities in OpenAI's ChatGPT models, including ChatGPT-4o and ChatGPT-5, that could allow attackers to steal personal data and hijack user conversations. The…

    8 articles · Updated November 10, 2025

Recent Intelligence Reports

  • Can you spot a 'deepfake' x-ray? — Auntminnie · March 24, 2026
  • Seven critical vulnerabilities open ChatGPT to data theft and hijacking: Tenable — Varindia · November 7, 2025
  • Seven Vulnerabilities in ChatGPT Expose User Data to Attack — Threatcluster · November 6, 2025
  • Seven ChatGPT flaws expose user data to attack, Tenable warns — Securitybrief · November 6, 2025

CVSS v3.1 Breakdown