There is another security flaw that affects most Mac computers at-risk while in their sleep state. This issue is especially dangerous as it affects the computer at the EFI Firmware level. If you have a brand-new Mac, you should be okay, but if you have one older than a year you could be affected. At this point their is no solution, but Apple has been alerted to this issue.
Everyday users shouldn't worry too much about this specific hack since it's a complicated process that would probably be more suitable for a high-risk/high-reward hack. However, computer security workers within companies that have valuable data that could cripple the company if manipulated or removed should be aware of the vulnerability.