Clinton tried to change rules to use BlackBerry in secure facility for classified information
From Fox News:
Another memo from March 2009, obtained by Judicial Watch through its FOIA lawsuit, from Assistant Secretary for Diplomatic Security Eric Boswell to Mills explicitly warned, “the vulnerabilities and risks associated with the use of Blackberries in Mahogany Row [seventh floor executive offices] considerably outweigh their convenience.” Clinton has claimed she used the personal account and BlackBerry for convenience.