Adjudicative Guidelines for Determining Eligibility for Access to Classified Information http://www.state.gov/
2. The Adjudicative Process
40. Conditions that could raise a security concern and may be disqualifying include:
(b) illegal or unauthorized modification, destruction, manipulation or denial of access to information, software, firmware, or hardware in an information technology system;
(d) downloading, storing, or transmitting classified information on or to any unauthorized software, hardware, or information technology system;
(g) negligence or lax security habits in handling information technology that persist despite counseling by management;
(h) any misuse of information technology, whether deliberate or negligent, that results in damage to the national security.