1. A computer vulnerability discovery system comprising: a central controller connected to one or more target systems via a computer network; a plurality of researcher computer network connections for a plurality of researcher computers, wherein each researcher computer network connection is for sending and receiving data between a researcher computer of the plurality of researcher computers and the central controller, wherein each researcher computer provides a user interface to an invited researcher, wherein an invited researcher is a person or organization selected to participate in one or more computer vulnerability research projects related to the one or more target systems, wherein the central controller is capable of monitoring at least some communications between the researcher computer and at least some of the one or more target systems; storage for tracking, at the central controller, assignment of a particular computer vulnerability research project of the one or more computer vulnerability research projects to an assigned researcher computer, to be operated by the invited researcher assigned to the particular computer vulnerability research project, wherein the particular computer vulnerability research project relates to a particular target system; storage for access credentials for providing an assigned researcher computer access to the central controller and/or the particular target system; a monitoring computer process to monitor networked data communications between the assigned researcher computer and the particular target system, wherein the networked data communications include communications that are usable to identify security vulnerabilities of the particular target system; and an evaluation computer process to determine a candidate security vulnerability of the particular target system based on a candidate security vulnerability report received from the assigned researcher computer resulting from the invited researcher's use of the assigned researcher computer to interact with the particular target system.