On Jan. 23, Netscape announced that by the end of March, it would begin giving away the source code of its popular Communicator suite of Internet software products, including its Navigator World Wide Web browser. The company also announced that it would give away the retail version of its Communicator products and would allow other companies to customize and distribute them free as well. This has the potential to radically shake up the web as we know it. Developers will be able to customize their web applications by altering the client environment. There are also many security concerns. For example, it will be easy to create and distribute trojan horse versions of the Netscape browser.