The first update for the new Mac Pro offers stability and power management improvement during the boot process and when using Boot Camp.
Firmware updates address a rare issue that could prevent booting for systems with excessively used batteries.
A new firmware update for mid-2012 MacBook Airs fixes Thunderbolt-related freezes and other problems.
The latest round of Apple EFI firmware updates tackles Thunderbolt, sleep, and Wi-Fi issues.
Apple's firmware password security is greatly enhanced in recent Mac models, making it a rather robust security feature.
Updates address hangs during heavy CPU loads and more.
Creating workarounds for unsupported text characters, and more covered in this week's Q&A.
The boot drive's format and partition structure can be checked both in the OS X graphical interface and in the Terminal.
If you have a server or other remotely accessed Mac, you can use a couple of approaches to encrypt the hard drive.
Given Apple-supplied password reset tools, you may have concerns about the possibility of these being used to override a FileVault-protected volume.