NEW: AI evaluation startup Braintrust confirmed a data breach affecting one of its AWS accounts, which contained API keys used by customers for accessing cloud-based AI models. The startup asked all its customers to revoke and replace their API keys "out of an abundance of caution." https://techcrunch.com/2026/05/06/ai-evaluation-startup-braintrust-confirms-breach-tells-every-customer-to-rotate-sensitive-keys/