There is no question that Microsoft's Internet Explorer has become more secure over time. There's also no question that with roughly 69 percent of the global browser market, IE remains a meaty target.
It is therefore not surprising that IE is under attack, though perhaps the recent breach of fully-patched IE is surprising, as as The Register reports:
As usual, there is browser security and then there's "user of the browser security." I suspect that the former is pretty strong with IE, but the latter...? Well, if someone wants to foolishly visit suspect sites, perhaps they're getting what they deserve.