David Brumley Dawn Xiaodong Song Privtrans: Automatically Partitioning Programs for Privilege Separation. 57-72 2004 conf/uss/2004 USENIX Security Symposium http://www.usenix.org/publications/library/proceedings/sec04/tech/brumley.html db/conf/uss/uss2004.html#BrumleyS04