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Users of Microsoft's Internet Explorer are being urged by experts to switch to a rival until a serious security flaw has been fixed.

The flaw in Microsoft's Internet Explorer could allow criminals to take control of people's computers and steal their passwords, internet experts say.

Microsoft urged people to be vigilant while it investigated and prepared an emergency patch to resolve it.

Internet Explorer is used by the vast majority of the world's computer users.

"Microsoft is continuing its investigation of public reports of attacks against a new vulnerability in Internet Explorer," said the firm in a security advisory alert about the flaw.

Microsoft says it has detected attacks against IE 7.0 but said the "underlying vulnerability" was present in all versions of the browser.

Other browsers, such as Firefox, Opera, Chrome, Safari, are not vulnerable to the flaw Microsoft has identified.

Browser bait

"In this case, hackers found the hole before Microsoft did," said Rick Ferguson, senior security advisor at Trend Micro. "This is never a good thing."

As many as 10,000 websites have been compromised since the vulnerability was discovered, he said.

"What we've seen from the exploit so far is it stealing game passwords, but it's inevitable that it will be adapted by criminals," he said. "It's just a question of modifying the payload the trojan installs."

Said Mr Ferguson: "If users can find an alternative browser, then that's good mitigation against the threat."

But Microsoft counselled against taking such action.

"I cannot recommend people switch due to this one flaw," said John Curran, head of Microsoft UK's Windows group.

He added: "We're trying to get this resolved as soon as possible.

"At present, this exploit only seems to affect 0.02% of internet sites," said Mr Curran. "In terms of vulnerability, it only seems to be affecting IE7 users at the moment, but could well encompass other versions in time."

Richard Cox, chief information officer of anti-spam body The Spamhaus Project and an expert on privacy and cyber security, echoed Trend Micro's warning.

"It won't be long before someone reverse engineers this exploit for more fraudulent purposes. Trend Mico's advice [of switching to an alternative web browser] is very sensible," he said.

PC Pro magazine's security editor, Darien Graham-Smith, said that there was a virtual arms race going on, with hackers always on the look out for new vulnerabilities.

"The message needs to get out that this malicious code can be planted on any web site, so simple careful browsing isn't enough."

"It's a shame Microsoft have not been able to fix this more quickly, but letting people know about this flaw was the right thing to do. If you keep flaws like this quiet, people are put at risk without knowing it."

"Every browser is susceptible to vulnerabilities from time to time. It's fine to say 'don't use Internet Explorer' for now, but other browsers may well find themselves in a similar situation," he added.


Quite frankly, I've been trying to encourage people to ditch Microsoft's crappy browser for years...from my family to any friends who will listen. Perhaps this will finally sound the requisite death knell that the nay-sayers need to finally wake up and listen to me.

--whisper2053

Excellent find and thanks for the heads up.

Glad I use Firefox

Credit where credit's due...td's the one who brought it to my attention

I should probly mention that I stole the info I gave whisper from another forum.

Lol, it's all about sharing

Yeah, thankfully I switched to the new Chrome a couple of months ago, will never go back

Heh, just actually read this, I'm using V6 anyway.

Might still want to consider ditching it, for now at least.

Yeah, but setuping up my Favs in Firefox is too much trouble.

Lol, what's difficult? You install FF and it asks you if you want to import your IE faves...you click yes and it does everything for you!

It's been installed for years, but I didn't have this logon on my PC, we only had one log on untill someone we were staying with starting playing with the computer. So I created this one and Pass protected it.

Ah, I see. Well, there's always the option of an uninstall/reinstall...it should restart the automation process if you should ever decide to go that route.

I could probly just play around with the options and bring them across, but I don't fell like doing it atm. I might have a play tomorrow. If I find a way I'll post it up.

wow microsoft must be ass deep in law suits with more then 10,000 web sites already at risk o-0

For all those who are using want to use Firefox but don't have their Favs on it. Try this Tutorial.

Good man