[1]http://www.ic3.gov/media/2015/151118.aspx

   Law enforcement personnel and public officials may be at increased risk
   of being targeted by hacktivists. Hacking collectives are effective at
   leveraging open source, publicly available information identifying
   officers and public officials, their employers or associates, and their
   families. With this in mind, officers and public officials should be
   highly aware of their email account security and their online presence
   and exposure. For example, posting images wearing uniforms displaying
   name tags or listing their police department on social media sites can
   increase an officer's risk of being targeted or attacked.

   Many legitimate online posts are linked directly to personal social
   media accounts. Law enforcement personnel and public officials need to
   maintain an enhanced awareness of the content they post and how it may
   reflect on themselves, their family, and their employer, or how it
   could be used against them in court or during online attacks.

References

   1. http://www.ic3.gov/media/2015/151118.aspx