The NSA (National Security Agency) of the USA has been helping Microsoft with security for the Windows OS. This is some great news, and should be great in the long run. Of course, I did find one thing disturbing.
The NSA and other cybersecurity experts say that simple precautions (such as installing system updates regularly and running anti-virus software and firewalls) should protect against about 80% of the attacks out there. This means that if users took these steps, the NSA and others could focus on the more dangerous 20%, or so the theory goes. Put another way, of course, that means about 20% of attacks are sophisticated enough to theoretically defeat standard security measures.
The emphasis is mine. I wonder what types of firewalls the attacks can bypass. Scary.