over a 1000 pc's are infected monthly by malware.... because of external thumb drives and hard drives... it could never be the out of date web browser :sarc:
Are you guys admins? IF so, shame on your IT department.
Are they work related drives and sharing work related files?
IE8 ships with windows 7. Even service pack 1 does not upgrade IE. You have to manually update it or go through windows update to upgrade internet explorer. Windows 7 can be upgraded to 9, 10 and 11. IE 11 is the last version of internet explorer supported on windows 7.
Your IT department likely did not miss anything.
They know that certain internal websites and other things will only work with IE8, so that is why you are on that version. All work related items would work fine in IE8. I am guessing that you are doing things not work related, otherwise you would not see the message about upgrading your browser. I see that all the time at my job.
IE11 does have Enterprise mode, ( a good step forward) but it only works with some internal websites - not all. It is not a full solution to solve all issues. Some web internal applications require old versions of java, so they need older versions of internet explorer to work since the addon breaks past IE9.
One thing is clear: Companies need to stop depending on internal websites/web apps, and specific browsers. Will that ever happen? Nope.
Unfortunately, some things just cannot move fast in an company IT department. If you worked in it, you would know.
Usually though, security is not to much of a issue if the users are standard users and not admins. They cannot install or change anything. (typically) This severely limits malware from being able to do anything. It would be great though if more up to date browsers could be used. In reality though, most places should just simply have good filters and only allow you on work related sites and/or internal sites. Then the issue is mostly solved.
Now the companies who have people run as admin, then they deserve anything that comes to them.
EDIT:
Also, know that IE8 on windows XP is not the same IE8 on windows 7. Windows 7 IE8 has more security options and features, and is combined with UAC and has better memory protection then what XP can offer. So while running IE8 on XP is defiantly not safe, windows 7 is slightly better due to the new security infrastructure in the OS. But it still is bad, just only slightly better.