Specifies the security information to be used for allocating the conversation. none - No security information. same - Use the security environment currently associated with this TP. pgm - Use the program-supplied user_id and password. pgmStrong - Use the program-supplied user_id and password. The local LU will insure that the password is not exposed in clear-text form on the physical network. distributed - Use the security environment and a distributed security system to generate the authentication information for this request. If distributed security tokens cannot be generated, then fail the conversation. mutual - Authenticate both the user to the destination system and the destination system to the user.