Signing into PayPal is highly secure as PayPal uses a Secure Sockets Layer protocol with 128-bit encryption, which is the highest commercial level encryption. Transactions are monitored from start to finish around the clock to detect and prevent fraud. Additionally, prior to logging on, PayPal's servers check whether the browser uses SSL 3.0 or higher to ensure confidential transmission of information.
PayPal has a powerful consumer protection and fraud detection system in place to prevent identity and account theft. On signing into an account, PayPal checks whether the sign in location is a known location or a new one. Phone verification with prompts to confirm user identity is initiated if the account is logged in from a new location, providing an extra layer of protection to the account. Additionally, PayPal's customers are not liable for fraudulent charges to their accounts.
PayPal stores sensitive information offline behind heavily guarded firewalls, preventing unauthorized access to financial data. Logging in to a PayPal account requires just a user name and a password, ruling out the need to transmit sensitive card information and bank details for each transaction. PayPal investigates unauthorized transactions reported within 60 days of the transaction date and investigates strange activity, phishing or suspicions of identity theft promptly.