PayPal is safe for individuals sending money because its website is secure and encrypted and has a buyer-protection plan in place. There is a risk to sellers using PayPal, as it makes it relatively easy for customers to dispute charges that may be valid.
PayPal has a reputation for siding with the purchaser more frequently in disputes. Although the PayPal official website itself is safe, the company is vulnerable to phishing scams where individuals send out e-mails that appear to come from PayPal but really redirect to websites designed to steal one's personal and financial information. Using PayPal is just as safe for buyers as using a credit card in an online transaction or using a check at a retail merchant.