PayPal automatically encrypts your confidential information in transit from your computer to ours using the Secure Sockets Layer protocol (SSL) with an encryption key length of 128-bits (the highest level commercially available). Before you even register or log in to the PayPal site, our server checks that you're using an approved browser - one that uses SSL 3.0 or higher.
Once your information reaches the PayPal site, it resides on a server that is heavily guarded both physically and electronically. PayPal servers sit behind an electronic firewall and are not directly connected to the Internet, so your private information is available only to authorised computers.
What Makes the PayPal Site So Secure?
Our state-of-the-art fraud models and proprietary fraud engine work together to help stop fraudulent transactions before they happen. In addition, PayPal stays at the forefront of security, developing many anti-fraud technologies every year.
With PayPal, you've got the industry's most experienced fraud team on your side. PayPal processes billions of dollars in payments each year, allowing us to continually perfect our anti-fraud protections. As a result, PayPal's loss rate is significantly lower than the industry average. We also work with federal law enforcement to catch criminals.
PayPal is committed to protecting the privacy of our users. When you send or request money using PayPal, recipients do not see your bank account numbers or credit card numbers. They only see your email address, sign-up date and whether or not you have completed PayPal's Verification process.