The Islamic State group (ISIS) reportedly has a "lone wolf" hit list targeting U.S. and British airmen in England in retaliation for U.S.-led airstrikes in Syria and Iraq. According to the subscription-only Sunday Times in London, the "Islamic State hacking division" is calling for attacks against four Royal Air Force bases, and has posted personal information — including addresses, phone numbers and email addresses — of more than 1,400 people, including 16 Air Force members who've served in Britain.As many as four of those U.S. airmen may still be in Britain or Europe, the Air Force Times, which posted the Sunday Times account, reports."Those identified on the list are warned: ‘We are extracting confidential data and passing on your personal information to the soldiers of the khilafah [caliphate] who soon, with the permission of Allah, will strike at your necks in your own lands!'"Tech. Sgt. Eric Burks tells Air Force Times no extra security measures were taken at the RAF base at Lakenheath, but he didn't say if that was the case at three other RAF bases on the ISIS hit list: Mildenhall, Menwith Hill and Alconbury."Commanders at all levels continually assess threats alongside host nation counterparts and take appropriate measures based on recent assessments … " Burks emailed Air Force Times."We are dedicated to making every possible effort to ensure the safety and security of service members, civilians, their families, and our facilities."Burks also didn't say if Air Force members whose personal information reportedly was posted online have been notified."We are encouraging all airmen to ensure privacy settings on online/social media forums are adjusted to limit the amount of available personal information, such as removing details like physical location, email addresses and phone numbers," he said.