Whoops! Looks like someone took over the Twitter account belonging to actor/former underwear model/producer Ashton Kutcher.
Based on the rogue tweet's references to SSL, we'd wager that the culprit behind the evil deed is most likely using Firesheep, the Firefox extension which sniffs out and hijacks browsing sessions, or a similar HTTP side-jacking tool.
Hopefully the guy or gal who has control of Kutcher's Twitter account is just a Firesheep vigilante—or similar—with no cruel intentions, but I suppose we'll probably find out soon enough.
It's either that or he's gotta stop using shady Wi-Fi hotspots! [Twitter]