While he was attending the tech-savvy TED conference, actor Ashton Kutcher got his Twitter account hacked, reports PCMag.com.

Kutcher, who has almost 6.4 million followers on Twitter, apparently was the target of a hacker who wanted to make a point about lax security, the story says. "Ashton, you’ve been Punk’d. This account is not secure. Dude, where’s my SSL?" one of the hacker’s tweets said.

The hacker also posted another tweet that read, "P.S. This is for those young protesters around the world who deserve not to have their Facebook & Twitter accounts hacked like this. #SSL", but that message has since been deleted, the story says.

The hacker apparently wanted to point out how easy it is for people to hack into a Twitter or Facebook account if users log in through an unencrypted WiFI without an SSL connection, such as at public hotspot, the story notes.