A very serious flaw detected in Microsoft Corp.'s Internet Explorer browser last week and experts warn about using the browser till Microsoft comes out with a patch.

Microsoft is investigation the issue and expected to come out with a software patch to solve the issue.

The flaw could allow hackers to take control of the the user's computer and steal passwords, credit card information, bank account details etc.

Microsoft believes that this flaw is limited to only Internet Explorer 7, which is most widely used version today. But security experts warned about using any version of Internet Explored till Microsoft release a patch.

Anti virus software maker Trend Micro says as many as 10,000 sites have been compromised since last week to exploit the flaw.