Newsweek was recently intruded upon as hackers have taken over the magazine's social media account, the magazine revealed.

These hackers have also infiltrated the account of Delta Air Lines Inc. and one of Twitter Inc.'s top executives.

Newsweek's twitter has been hacked. The profile photo and banner were changed to include the words "CyberCaliphate" and "Je SuIS IS", which is a reference to the shooting attacks in Paris last month.

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Apart from that, messages were posted from the account that threatened President Barack Obama and his family. The hackers also claimed to publish confidential government documents.

The tweets showed what seemed like government security records. The group claimed that they had confidential documents about "Pentagon warfare in social networks," as well as an organizational chart of the Defense Cyber Investigations Training Academy marked "For Official Use Only."

The group is dubbed CyberCaliphate. Last Month, they also took over the U.S. military's Central Command Twitter feed for half an hour. The account was filled with praise for Islamic State militants and threats against the military.

Josh Earnest, the White House press secretary, said that the Federal Bureau of Investigation (FBI) is currently investigating the "intrusion."

It wasn't a totally terrible situation though, as Newsweek was able to regain control of its account in less than 15 minutes.

Newsweek's Twitter account was not the only one targeted on the same day.

The Twitter account of one Anthony Noto, Twitter's own chief financial officer, was hacked to send hundreds of auto-replies containing spam links that indicated his account has been compromised.

Delta is also investigating objectionable sexual content that appeared on the company's Facebook page.

The hacks underscored the risks of using Facebook and Twitter to push a company's brand.

These companies join an ever-increasing list of companies that were hacked. The New York Post, Burger King, and the Associated Press have all been hacked previously.

TagsNewsweek, hack, CyberCaliphat, JeSuIS IS, Delta Air Lines Inc.