Users of several Internet Explorer versions are being urged on Monday to switch to other browsers such as Chrome or Firefox amid news of a major security hole. According to Rapid7 security forum, a new zero-day exploit for Internet Explorer 7, 8, and 9 has hit computers running Windows XP, Vista and 7. Zero-day exploits involve software that takes advantage of a security hole within a site to carry out an attack. This means that computers actively using Internet Explorer can be compromised by visiting a malicious site and give cybercriminals “the same privileges as the current user.” Read the full story at Mashable.