Shadow Breakers

There have been several leaks of supposed NSA hacks recently. Generally they have been older vulnerabilities and minimal impact.

Microsoft responded with a blog post.

Our engineers have investigated the disclosed exploits, and most of the exploits are already patched.

However there's somewhat of a back story.

You'll remember that Microsoft mysteriously pulled their February updates with no explanation.

Then in March Microsoft fixed several flaws with no attribution. You have to back into this discovery by matching this with this.

This Engadget article speculates on how/why this happened. There's more speculation from Quartz here.

Whatever happened the result is that Microsoft did a good job of protecting their current platforms from the 0-day vulnerabilities. The same can't be said for the NSA.