Coleen Coolidge is Head of Security at Segment in San Francisco. Previously, she was at Twilio (pre-to-post IPO) as Sr Director of Trust and Security. She's also served in security-leadership positions at more traditional, enterprise companies like First American Title and CoreLogic in Southern California. Coleen works on advancing the security culture past “just having the infrastructure-people do it” to creating a comprehensive program where everyone in the company participates to improve the company’s security posture year over year.