Data Fence applies the "Principle of Least Privilege" to data. This means we want to only allow the minimum number of programs necessary to access a particular data file. Any program outside that minimum set trying to access the data gets flagged. A potential problem with this least privilege approach is that you might get false alarms, also known as false positives. Fortunately, this takes about 10 seconds to resolve.
This video shows an example of a false positive and how to quickly fix it.