Patent 8990930 was granted and assigned to Microsoft on March, 2015 by the United States Patent and Trademark Office.
Attempts to make code secure often are associated with performance penalties. To facilitate striking an acceptable balance between performance and security, vulnerable areas of source code are identified. The vulnerable areas are examined for areas that are actually safe and the safe areas are filtered from the universe of code that receives security mitigations. The remaining code receives security mitigations appropriate to the level of risk of the code.