Islamic State (ISIS) hackers have published a "hit list" of over 70 US military personnel who have been involved in drone strikes against terror targets in Syria and asked their followers to "kill them wherever they are".

However, the information published by ISIS does not appear to be the result of a leak or genuine hack.

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Instead, the group seems to have painstakingly gleaned the names of Reaper and Predator drone operators from news articles and military newsletters, before matching them to addresses, photos and other personal details from publicly available sources on the internet.

Some of the information appears to have been taken from social media sites, including Facebook and LinkedIn.