Pro-ISIS hackers briefly took over Newsweek's Twitter account on Tuesday, and sent out threats to US President Barack Obama and his family through it.
The Cyber Caliphate hackers' group, which had last month claimed responsibility for hacking into the US Military Central Command's social media accounts, took control over the magazine's Twitter feed for about 14 minutes.
One of the tweets aimed at Obama's wife Michelle and their daughters read: "Bloody Valentine's Day #MichelleObama! We're watching you, you girls and your husband!".
The hackers also posted pictures of what they claimed were sensitive documents from the Pentagon and their US National Cybersecurity Center, and said that their cyber crimes were in retaliation to the US actions in the Middle East.
"While the U.S. and its satellites are killing our brothers in Syria, Iraq and Afghanistan, we are destroying your national cyber security system from inside," the group said.
Newsweek, an IBT Media-owned magazine, confirmed the hack but said they had retaken control of their Twitter account.
"We can confirm that Newsweek's Twitter account was hacked this morning, and have since regained control of the account," Newsweek managing editor Kira Bindrim said in a statement.
Newsweek's Twitter handle was hacked earlier today by "Cyber Caliphate" group that claims to be associated with ISIS— http://t.co/SAcVexFigU
— Newsweek (@Newsweek) February 10, 2015
The FBI is reportedly investigating the hack since the group posted messages threatening the Obamas.
Apart from Newsweek, the website of the International Business Times, also owned by IBT Media, was also hacked on the same day.
The website had also been hacked in December by the Syrian Electronic Army, a pro-Assad group of hackers.