So first you have to be using the IE browser with the security setting set to lower than recommended.
And then you have to receive an email directing you to some specific website that has been specially coded by a hacker.
Then you have to believe the email and go there.
Then you have to click on something on the site, usually to install some dodgy software.
And that creates a security risk.
Me? I just ignore random recommendations to visit websites that come through unsolicited email. Much easier than changing my browser (which just happens to be Firefox anyway, and has been for many years).
A couple of years ago, the code for Firefox was found to contain a group of weaknesses that had been in it since it was first built and was in every release for several years, and had been in netscape for a few years before that as well. The governments didn't scream dump Firefox, we just waited until the next update came along and took it. Which is exactly what IE users should do.
Panic reactions from governments are usually not worth listening to.
I remember many years ago, when first a vet died in a very careless accident, then his lover (not his wife) committed suicide using the same drug that he got injected with, and the UK government immediately banned it's use. It took six months for the vets to convince them that everyone already knew it was dangerous (very, very dangerous) and that the original accident had broken every safety rule recommended by the drug manufacturer, and to get its use allowed again (it was the stuff you see them use to sedate elephants in those wildlife programs).
Now here we have another government or two panicking and trying to impress voters into thinking that they are looking after them.
Just remember, if Firefox every becomes THE dominant browser, it will be the one that hackers examine for weaknesses and exploit. Will the governments then scream drop Firefox, use IE instead?