Stripe Security Statement
Stripe has been audited by a PCI-certified auditor and is certified to PCI Service Provider Level 1. This is the most stringent level of certification available in the payments industry. To accomplish this, Stripe use the best-in-class security tools and practices to maintain a high level of security at Stripe. Read more about Stripe Security here.
When you pay with PayPal, your financial information is never shared with the seller, and you can pay using only your email address and password. Read more about Paypal Security and Buyer Protection here.