I'm assuming that the people who are continuing to panic or think "virus" about this even after several posts confirming that it's a certificate problem completely external to their system are because they're from separate threads being merged into this thread.
This is sort of an aside, but here's something you definitely don't want to do: Since the certificate authority that issues Akamai's certificates is GTE CyberTrust, I was sort of wondering if maybe there was something wrong with their root certificate, so I was messing around with the Root Certificates in Keychain, and made the dumb mistake of deleting GTE CyberTrust. This of course renders any certificate issued by them invalid, which is to say anything at all run through Akamai--which is a LOT.
Since a lot of sites (eBay and Facebook, to name a couple) use Akamai's CDN to distribute their static content (images and CSS), trying to load an HTTPS page on those sites without a GTE CyberTrust root certificate results in a page with no styling or images--just the plain HTML. Which is pretty much unusable.
And since I can't find a way to get the MacOS to refresh its list of Root Certificates manually, I ended up needing to manually find, download, and install a certificate for GTE CyberTrust. I'm not sure if Akamai already worked out the Facebook thing, but if not it apparently fixed that.
Point being, don't be an idiot and mess with your root certificates.
