PayPal is highly secure. It uses industry-leading technology (such as SSL) to keep your information safe. PayPal automatically encrypts your confidential information in transit from your computer using the Secure Sockets Layer protocol (SSL) with an encryption key length of 128-bits (the highest level commercially available). 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 authorized computers.