Here's book that's valuable today and indispensable for the future. It includes basic and advanced techniques for client-side and server-side security, browser security, writing secure CGI scripts, firewalls, and secure e-commerce. There's a special appendix that demystifies the complex world of cryptography. And the book comes with access to a dedicated Web site containing up-to-the-minute information on the latest security threats and solutions. So whether you're a Webmaster trying to close the door on sites and applications, or an everyday user hoping to keep your desktop safe, this is your essential source on protecting and securing Web pages, search engines, servers, and browsers; writing impregnable applets and scripts, and avoiding the dangers inherent in every language; using (and abusing) firewalls and cryptographic controls; and securing commerce and payment transactions.