software tweaks

A newly discovered flaw in the Internet's core infrastructure not only permits hackers to force people to visit Web sites they didn't want to, it also allows them to intercept e-mail messages, the researcher who discovered the bug said Wednesday.

Considering the silent nature of the attack and the sensitive nature of a lot of electronic correspondence, the potential for damage from this second security flaw is high. But there's no evidence yet that this method of targeting e-mail has been used in a successful attack.