Outsourcing security analysis with anonymized logs

As security monitoring grows both more complicated and more sophisticated, there is an increased demand for outsourcing these tasks to Managed Security Service Providers (MSSPs). However, the core problem of sharing private security logs creates a barrier to the widespread adoption of this business model. In this paper we analyze the logs used for security analysis with the concern of privacy and propose the constraints on anonymization of security monitor logs. We believe if the anonymization solution fulfills the constraints, MSSPs can detect the attacks efficiently and protect privacy simultaneously.