Photos of Mark Zuckerberg and Jack Dorsey appear multiple times in a 25-minute video created by a group that calls itself the Sons Caliphate Army.<br />The images of the two CEOs are sometimes engulfed in flames, or marked with bullet holes.<br />The video is in response to efforts by Facebook and Twitter to stop terrorist activity on their platforms.<br />A slide toward the end of the video reads, in English: “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?<br />You are not in our league.<br />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.<br />#Sons_Caliphate_Army” In a separate slide, they also claim to have hacked more than 10,000 Facebook accounts, 150 Facebook groups, and more than 5,000 Twitter accounts.