Braintrust Confirms Unauthorized Access to AWS Account
Braintrust, an AI evaluation and observability startup, confirmed unauthorized access to one of its AWS accounts after suspicious behavior was reported on May 4, 2026.
Key points
- Unauthorized access to an AWS account reported on May 4, 2026.
- Exposed AI provider API keys and customer secrets.
- One customer confirmed impacted.
Connected intelligence
Signal brief
Follow the organization, likely method and potential impact to explore connected Shadow Tier intelligence.
Organization
- Published
- May 4, 2026
- Updated
- Jun 29, 2026
- Confidence
- Medium
- Evidence
- 1 source
Structured assessment
Signal analysis
This analysis groups the signal by industry, likely incident action and impacted security area. It helps compare this signal with other published signals without treating the labels as final determinations.
Threat source
Watch internet-facing systems, credential abuse and exploit activity.
Business impact
- Impact area
- Confidentiality
- Likely asset
- User or customer data, Server or cloud data store
Mentioned entities
Quick context
Questions about this signal
What happened in this signal?
Braintrust, an AI evaluation and observability startup, confirmed unauthorized access to one of its AWS accounts after suspicious behavior was reported on May 4, 2026. The company advised customers to rotate their organization-level AI provider keys stored within the platform. One customer was confirmed impacted, and broader exposure had not been identified at the time of reporting. Exposed data included AI provider API keys and customer secrets used to access cloud-based AI models.
When was this signal reported?
Shadow Tier lists May 4, 2026 as the signal date.
Which organization is connected to this signal?
Usebraintrust is the organization connected to this public signal.
Explore UsebraintrustWhich impact area is relevant?
This signal is connected to data exposure and breach intelligence based on its reported consequences.
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