A recent security incident at Braintrust, an AI observability startup, has raised concerns over AI supply chain risks after hackers breached one of the company's AWS accounts, potentially exposing sensitive information tied to cloud-based AI models. The breach, discovered on May 4, prompted Braintrust to lock down the affected account, restrict access to related systems, and rotate internal credentials to mitigate further damage. As a precautionary measure, the company advised customers to rotate their API keys to prevent potential unauthorized access. The incident highlights the vulnerability of AI systems to supply chain attacks, which can have significant consequences for organizations relying on these models1. This matters to practitioners because a breach in the AI supply chain can compromise the integrity of entire systems, making it essential to prioritize robust security measures to protect against such threats.