21.   Nothing lasts for long on Ebay, the popular online auction house, except, apparently, potential security flaws.

22.   Oliver Friedrichs of Secure Networks Inc., a Web security firm in Calgary, Canada, said Miora had put its finger on a common security flaw.

23.   Perhaps the biggest hint of a change in thinking about e-mail security flaws can be found in Internet discussion groups.

24.   SATAN is a sophisticated software program, which finds security flaws in any computer system linked to the Internet, the global network of computers.

25.   SATAN was designed to allow computer system administrators to spot security flaws in their networks.

26.   Seasoned scientists like Pond contend that the only way to demonstrate a security flaw is to write a program that shows how to crack it.

27.   Satan is a sophisticated software program, intended to find the security flaws in any computer system linked to the global Internet.

28.   Security flaws in Microsoft products have cost its customers billions of dollars in recent years.

29.   Since the security flaws can be exploited from an Office document hidden in an e-mail message, a user reading e-mail online can inadvertently unleash rogue programs or viruses.

30.   SOFTWARE A FIX FOR INTERNET EXPLORER Microsoft has released a patch that fixes security flaws in its Internet Explorer browser software.