Feb 10 (Reuters) - Hackers calling themselves "CyberCaliphate" threatened U.S. President Barack Obama and his family when they took control of Newsweek magazine's Twitter account on Tuesday with the words "Je suIS IS," a reference to Islamic State and the deadly attack at French newspaper Charlie Hebdo.
The group, which also took responsibility for hacking Pentagon social media accounts last month, tweeted "#CyberCaliphate Bloody Valentine's Day #MichelleObama! We're watching you, you girls and your husband!"
The Twitter account showed a head wrapped in a black-and-white scarf next to a banner proclaiming "CyberCaliphate."
The "Je suIS IS" was a reference to the phrase "Je suis Charlie" that emerged last month in support of victims of the attack by Islamic militants on Charlie Hebdo in Paris that killed 12 people.
Newsweek removed the "CyberCaliphate" banner and tweets and regained control of the account within 14 minutes, the magazine said. The Islamic State militant group has seized territory in Iraq and Syria and has declared itself a "caliphate."