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US military staff on alert after ISIS group posts 'hit list' online

American military personnel are being told to monitor their internet footprints carefully after an Islamic State-linked terror group published the names, photos and addresses of 100 staff online and called on US members to behead them.

US Army helicopter

According to US monitoring group SITE Intelligence, a group calling itself the Islamic State Hacking Division was behind the leaks. The group claims it is an ISIS affiliate and says it got hold of the information from military servers, databases and emails, news site The Blaze reported.

"[W]e have decided to leak 100 addresses so that our brothers residing in America can deal with you," the group warned, according to The Blaze.

"Kill them in their own lands, behead them in their own homes, stab them to death as they walk their streets thinking that they are safe."

The Pentagon has told The New York Daily News that it is investigating the threat and military staff are being urged to exercise vigilance.

"It is recommended Marines and family members check their online/social footprint, ensuring privacy settings are adjusted to limit the amount of available personal information," US Marine Corps Lieutenant Colonel John Caldwell said in a statement.

The US Air Force also says it is "taking the appropriate steps" to ensure the safety of its staff.

The publication comes as New Zealand's Defence Minister Gerry Brownlee hinted yesterday that the names of Kiwi troops heading over to Syria next month to help train Iraqi troops in their fight against ISIS could be kept secret to prevent harm coming to them or their families.