An accidental leak may have confirmed Chinese hackers’ suspicions that Internet Explorer has a critical unpatched vulnerability. The bug was one of about 100 found by noted browser vulnerability researcher and Google security engineer Michal Zalewski. The vulnerabilities were in IE, Firefox, Chrome, Safari and Opera browsers. Microsoft said it was analyzing the vulnerability Sunday, and is investigating if it is actually exploitable. Other browser makers, including Mozilla and Opera, have fixed some of the bugs, but not all have been fixed.”]
Source: https://www.csoonline.com/article/2126482/chinese-hackers-dig-into-new-ie-bug.html