text=Building on the security of Windows« 2000, Windows XP Professional provides the latest technologies to keep your data safe from unauthorized access. The Internet Connection Firewall |protects your computer from hackers when it's connected to the Internet. Built-in policies also help protect your computer from certain types of e-mail viruses. If you need to encrypt your data, Windows XP Professional offers an encrypting file system, which has been improved to work seamlessly with offline data.