Hello,
A new fix has been released to address issues with Internet Explorer Mobile and Fraudulent Third-Party Certificates.
Please find the details below
Update 7.0.7392.0
Full details can be found at :
Windows Phone update history | Windows Phone 7http://www.microsoft.com/windowsphone/en-us/howto/wp7/basics/update-history.aspx
Best regards,
João Ribeiro