The two biggest things one can do to lose or be denied access to a security clearance are 1) foreign contacts and travel and 2) financial issues.
Most of the security clearance denial appeals are published by the US government, and just from a cursory glance, you can see that mundane credit problems, foreclosures, etc. are the top reason given.
Most of the security clearance denial appeals are published by the US government, and just from a cursory glance, you can see that mundane credit problems, foreclosures, etc. are the top reason given.
* http://ogc.osd.mil/doha/industrial/2017.html