Service members were again targeted in a data security breach involving defense contractor Booz Allen Hamilton. Hackers posted approximately 90,000 military email addresses obtained from the company on their website. Booz Allen Hamilton confirmed the breach this week in a statement posted to their website, noting that they are in the midst of conducting a full review but believe the data breached was related to a learning management system for a government agency.

Antisec, a part of the activist hacker group Anonymous, posted the information on its site and claimed responsibility in a message to the Pastebin file storage site. “”We infiltrated a server on their network that basically had no security measures in place. We were able to run our own application, which turned out to be a shell and began plundering some booty,” said the hackers.

It’s another reminder of the special security concerns for military members and defense contractors. With access to sensitive information, individuals with any defense or military ties will increasingly become the targets of spear phishing and data mining campaigns, as hackers look to put the information they obtain to use.

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Lindy Kyzer is the editor of ClearanceJobs.com. She loves the NISPPAC, social media, and the U.S. military. Have a conference, tip, or story idea to share? Email lindy.kyzer@clearancejobs.com. Interested in writing for ClearanceJobs.com? Learn more here.