Find notable cyber news and cases, enriched with sources, timelines, and signals.
Home Watchlists Beta Browse News Feed Stats About Contact

OpenAI ChatGPT worldwide outage with loading errors

Service Disruption
First reported
Last updated
Happening score
H score 29
1 unique sources, 2 articles

Summary

Hide ▲

OpenAI's ChatGPT is suffering a worldwide outage, leaving many users unable to get responses and risking stalled or lost conversations. Users are seeing response-generation errors and endless loading, while the cause remains unclear. The disruption affects a large user base and is already generating widespread reports of broken service.

Related Happenings

OpenAI ChatGPT Lockdown Mode rollout limits prompt-injection exfiltration paths

Security Tool/Service
H score10 First: 06.06.2026 16:36 Last: 06.06.2026 16:36 Sources 1

About this happening: **OpenAI ChatGPT** is rolling out **Lockdown Mode** for eligible personal accounts, reducing the risk of **prompt-injection-driven data exfiltration**. The update adds stricter li...

Open Happening

Microsoft Outlook.com outage causing sign-in failures

Service Disruption
H score20 First: 27.04.2026 15:03 Last: 27.04.2026 15:03 Sources 1

About this happening: Microsoft's **Outlook.com** is experiencing an **ongoing outage** that is blocking sign-ins and mailbox access, leaving some customers unable to use email normally. The disruption...

Open Happening

ChatGPT single-prompt DNS side-channel exfiltration remote code execution flaw

Vulnerability
H score33 First: 31.03.2026 16:01 Last: 31.03.2026 16:01 Sources 1

About this happening: A **ChatGPT** vulnerability let a **single malicious prompt** covertly exfiltrate prompts, messages, uploaded files, and other sensitive content through a **DNS side channel**. Th...

Open Happening

OpenAI ChatGPT security update for prompt exfiltration flaw

Security Patch Release
H score31 First: 31.03.2026 16:01 Last: 31.03.2026 16:01 Sources 1

About this happening: OpenAI deployed a **security update** for **ChatGPT** on **February 20**, closing a flaw that could let a **single malicious prompt** covertly exfiltrate **prompts, messages, uplo...

Open Happening

Microsoft 365 admin center outage in North America and Canada

Service Disruption
H score1 First: 10.02.2026 17:45 Last: 10.02.2026 17:45 Sources 1

About this happening: The **Microsoft 365 admin center** is experiencing an **ongoing outage** that is blocking some business and enterprise administrators from logging in, disrupting tenant administra...

Open Happening

Timeline

  1. 02.12.2025 21:52 2 articles · 7mo ago

    ChatGPT outage causes worldwide loading failures

    Initial Disclosure

    OpenAI's ChatGPT is down worldwide on 2025-12-02, with users seeing "something seems to have gone wrong" and "There was an error generating a response" messages. Some users reported conversations disappearing and new messages continuing to load without returning a reply, while DownDetector showed about 30,000+ users having issues and OpenAI had not acknowledged the outage yet.

    Show sources
    Open in new tab