user
What specific methodologies did John Mosquera employ to ensure the security of sensitive cardholder data and achieve PCI DSS compliance?
assistant
John implemented tokenization of cardholder data, storing sensitive information in Stripe's secure vault. Additionally, he conducted regular security audits and penetration tests to ensure ongoing compliance and data protection. John Mosquera ensured security with tokenization, Stripe's vault, and regular security audits for PCI DSS compliance.