# Caleb Sima

> Chair of the CSA AI Safety Initiative; former Robinhood CSO.

Sima was previously CSO at Robinhood and VP of Security at Databricks, and co-founded SPI Dynamics and Bluebox Security (acquired by HP and Lookout). He is an active startup advisor and investor focused on application, cloud, and AI security.

- **Category:** [CISOs](https://gracker.ai/cyber-resources/cisos)
- **Website:** https://www.linkedin.com/in/calebsima/
- **Location:** San Francisco, CA, USA
- **Company:** WhiteRabbit / Cloud Security Alliance
- **Title:** Founder (WhiteRabbit); Chair, CSA AI Safety Initiative
- **Verified:** Yes
- **Last updated:** June 9, 2026

## Expertise

- AI security/safety
- Application security
- Cloud security
- Startup founding/advising
- Security leadership

## Frequently asked questions

### Who is Caleb Sima?

Caleb Sima chairs the Cloud Security Alliance's AI Safety Initiative and is building WhiteRabbit, with 25+ years in cybersecurity and a prominent voice on AI security.

### What is Caleb Sima's current role?

Caleb Sima is Founder (WhiteRabbit); Chair, CSA AI Safety Initiative at WhiteRabbit / Cloud Security Alliance.

### What is Caleb Sima known for?

Caleb Sima focuses on AI security/safety, Application security, Cloud security, Startup founding/advising, Security leadership.

### Where is Caleb Sima based?

Caleb Sima is based in San Francisco, CA, USA.

### What is Caleb Sima listed under on Cyber Resources?

Caleb Sima is listed in the CISOs category of Cyber Resources, the curated directory of the cybersecurity marketing and growth ecosystem.