INSPECTING ARCHIVED INTELLIGENCE (OUTDATED VERSION).
OpenCode Breach Could Affect OpenAI Anthropic and Google Systems
|
2026-10-19 13:30
HIGH
LOW
DATA BREACH
Executive Summary
AI-generated
A security breach affecting OpenCode, a widely used AI agent platform provider, occurred on October 17, 2026. The incident was related to an unauthorized access to a legacy system that exposed API keys linked to users of Anthropic, OpenAI, and Google AI models. Approximately 1.4% of OpenCode Console users were impacted by the breach, which affected around 18,000 users (1.4% of 13 million monthly active users). The attack involved a large-scale distillation attack that exposed third-party provider keys saved in user workspaces. OpenCode notified Anthropic, OpenAI, and Google to remediate the issue, and recommended steps for users to mitigate the impact include checking their inbox for an email with subject line "Action Required: Potential provider key breach," listing potentially exposed keys, reviewing API usage for suspicious activity, generating new replacement keys, and revoking old ones.
Technical Mitigations AI-generated
• Reset credentials and API keys that may have been exposed, and review access logs for the affected accounts or integrations.
Intelligence Metadata
Actors / Malware / CVEs / Campaigns
Target & Sectors
CI
technologytechnology
Incident Timeline
July 2026
Unauthorized access to a legacy system at OpenCode resulted in potential exposure of third-party provider keys for users, including those from OpenAI and Anthropic.
Click on any entity below to view its context and source!
victims
13 monthly active users
In
a July 2026 interview
with Y Combinator – financial backer of Anomaly, the company which develops and maintains OpenCode – the founder and CEO Jay V claimed OpenCode had reached approximately 13 million monthly active users and 4.6 million weekly active users.
victims
4.6 weekly active users
In
a July 2026 interview
with Y Combinator – financial backer of Anomaly, the company which develops and maintains OpenCode – the founder and CEO Jay V claimed OpenCode had reached approximately 13 million monthly active users and 4.6 million weekly active users.
organisation
Unauthorized Access
OpenCode Points to Unauthorized Access to Legacy System
organisation
Discord
The email was made public by several OpenCode users on the dedicated subreddit forum and the official Discord channel.
organisation
OpenCode
The email said OpenCode had "identified unauthorized access to a legacy system that we were in the process of decommissioning" and that "third party provider keys (e.g. OpenAI, Anthropic) saved in your workspace may have been exposed.
October 17
Threat actors exploited a security vulnerability in OpenCode's Console service to gain unauthorized access, affecting its API credentials and potentially impacting users including OpenAI, Anthropic, and Google.
2026/10/19
Threat actors successfully exploited OpenCode, exposing API keys linked to users of Anthropic, OpenAI and Google AI models.
Click on any entity below to view its context and source!
organisation
OpenCode Breach
OpenCode Breach Could Affect OpenAI, Anthropic and Google.
organisation
Google
OpenCode Breach Could Affect OpenAI, Anthropic and Google.
organisation
API
A security breach affecting open-source AI agent framework provider OpenCode could expose API keys linked to users of Anthropic, OpenAI and Google AI models.
organisation
Securing
…successful response
Applying additional security controls: restrict keys to the required projects and APIs, set appropriate spending limits and budget alerts, and review workspace access and permissions
Securing your OpenCode Console configuration: if you continue using Console with your own provider credentials, add a dedicated, restricted API key rather than reusing a production key.
Tactical Metrics
Metrics
victims
13,000,000
Monthly Active Users
Click for context!
In
a July 2026 interview
with Y Combinator – financial backer of Anomaly, the company which develops and maintains OpenCode – the founder and CEO Jay V claimed OpenCode had reached approximately 13 million monthly active users and 4.6 million weekly active users.
Metrics
victims
4,600,000
Weekly Active Users
In
a July 2026 interview
with Y Combinator – financial backer of Anomaly, the company which develops and maintains OpenCode – the founder and CEO Jay V claimed OpenCode had reached approximately 13 million monthly active users and 4.6 million weekly active users.
Intelligence Sources
Infosecurity-Magazine
2026-10-19
OpenCode Breach Could Affect OpenAI, Anthropic and Google
Infosecurity-Magazine
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Incident Version History
CURRENT VERSION
Last Updated: 2026-10-20T06:31
Comprehensive Tactical Telemetry
Highly Correlated Entities
7x
organisation
Identified Entity
OpenCode Breach
entity
2x
timeline
Temporal Reference
October 17
date
Contextual Telemetry
Context Block
7 METRICS
industry
Targeted Sector
Technology
sector
victims
Monthly Active Users
13,000,000
monthly active users
victims
Weekly Active Users
4,600,000
weekly active users
target region
Target Country
Côte d'Ivoire
country
general metric
Stars
217
stars
general metric
%
1
%
general metric
October
16
october
Click on any entity below to view its context in the main text!
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