Do you remember the "evil maid" attacks? Evil maid attacks are a catch-all term for security vulnerabilities in OS X devices that required a hacker to insert a USB drive into a computer.
If a maid were evil, then she'd be able to easily pull off these attacks. The vulnerabilities were disclosed because of Google's Project Zero initiative.
Project Zero, if you remember, has been harrying Microsoft by disclosing major security vulnerabilities in the Windows operating system. Though every company with a security flaw revealed by Project Zero has accused Google of bullying, no one can deny that it gets results.
Apple just fixed the "evil maid" vulnerability in a new update to OS X Yosemite.
The OS X Yosemite 10.10.02 Combo Update fixes the "evil maid" security update and more.
Naked Security reports on some details of the update:
As well as the changes mentioned in the article above it also features fixes for fourteen more issues credited to either the Google Security Team or to Google Project Zero. There might also, finally, be some light at the end of the tunnel for Yosemite users who've been struggling with Wi-Fi disconnection issues - Apple claims there's a resolution for that problem included in the update too.
Updating your Mac is easy. You can easily find out how to it in this helpful tip.