As with any web site login or account, especially one that contains your financial information, you need to ensure you take steps to protect your information.

• Choose your user ID, password and secret question carefully.
• Beware of fake email and Web sites requesting sensitive information. eBay will NEVER ask you to provide sign-in passwords, credit card numbers, or other sensitive information through email. To view more information on how to detect a spoof email, visit Account Theft.
• Install and update online protection software such as anti-virus, spyware and firewall protection.
• Check your eBay account from time to time and investigate and report any activity that you don't recognize.
• eBay offers an in-depth tutorial on how to protect your account, you can watch this tutorial here.