Mark Zuckerberg, Jack Dorsey have received direct threat from Islamic State video

© Zuckerberg by Martin E. Klimek, USA TODAY; Dorsey by Scott Olson, Getty Images Facebook CEO Mark Zuckerberg and Twitter CEO Jack Dorsey.

Direct threats against Facebook CEO Mark Zuckerberg and Twitter CEO Jack Dorsey for combating terrorism on their web (internet) platforms was seen in a video purportedly made by Islamic State (ISIS) supporters.

The video propaganda with 25minutes duration was released by "the sons of caliphate army," one of the groups of ISIS. Photographs of the CEO's of both leading social media site was targeted by bullets. The video was seen by an analyst on Telegram.

"We don’t want people doing that kind of stuff on Facebook," Zuckerberg said at Mobile World Congress in Barcelona.

"If we have opportunities to basically work with governments and folks to make sure that there aren’t terrorist attacks then we’re going to take those opportunities and we feel a pretty strong responsibility to help make sure that society is safe," Zuckerberg said. 

Sons of the Caliphate is a small offshoot of the Cyber Caliphate that analysts speculate is a "teen" or "apprentice" division.

One of the slide in the released video read: "To Mark and Jack, founders of Twitter and Facebook and to their Crusader government. You announce daily that you suspended many of our accounts. And to you we say: Is that all you can do? You are not in our league. If you close one account we will take 10 in return and soon your names will be erased after we delete you (sic) sites, Allah willing, and will know that we say is true. #Sons_Caliphate_Army."