System to prevent export of sensitive data

A computer-implemented method for controlling the transmission of a file, the method comprising:

• displaying, by a client program, a user interface that enables a user to identify a file to transmit to a destination;
• determining, by the client program, whether data within the file includes sensitive information;
• determining, by the client program, a source of the file;
• determining, by the client program, a probability that transmission of the data from the source to the destination would violate a policy;
• and
• sending, by the client program, the file to the destination only when the probability exceeds a threshold.

A computer program product for controlling the transmission of a file, the computer program product comprising a computer readable storage medium having program instructions embodied therewith, wherein the program instructions are executable by a processor to perform a method comprising:

• displaying a user interface that enables a user to identify a file to transmit to a destination;
• determining whether data within the file includes sensitive information;
• determining a source of the file;
• determining a probability that transmission of the data from the source to the destination would violate a policy;
• and
• sending the file to the destination only when the probability exceeds a threshold.