Clinton's use of BlackBerrys
Prior to her appointment as Secretary of State in 2009, Clinton and her circle of friends and colleagues communicated via BlackBerry phones.[20] State Department security personnel suggested this would pose a security risk during her tenure.[21] The email account used on Clinton's BlackBerry was then hosted on a private server in the basement of her home in Chappaqua, New York, but that information was not disclosed to State Department security personnel or senior State Department personnel.[22]
Setting up a secure desktop computer in her office was suggested, but Clinton was unfamiliar with their use[23] and opted for the convenience of her BlackBerry,[24] not the State Department and government protocol of a secured desktop computer. Efforts to find a secure solution were abandoned by Clinton,[25] and she was warned by State Department security personnel about the vulnerability of an unsecured BlackBerry to hacking.[26] She affirmed her knowledge of the danger, and was reportedly told that the Bureau of Diplomatic Security had obtained intelligence about her vulnerability while she was on a trip to Asia, but continued to use her BlackBerry outside her office.[20]
At the time of Senate confirmation hearings on Hillary Clinton's nomination as Secretary of State, the domain names clintonemail.com, wjcoffice.com, and presidentclinton.com were registered to Eric Hoteham,[27] with the home of Clinton and her husband in Chappaqua, New York, as the contact address.[28][29] The domains were pointed to a private email server that Clinton (who never had a state.gov email account) used to send and receive email, and which was purchased and installed in the Clintons' home for her 2008 presidential campaign.[30]
The email server was located in the Clintons' home in Chappaqua, New York, from January 2009 until 2013, when it was sent to a data center in New Jersey before being handed over to Platte River Networks, a Denver-based information technology firm that Clinton hired to manage her email system.[31][32][33][34][35]
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https://en.wikipedia.org/wiki/Hillary_Clinton_email_controversy