By RUGERO Tesla ( @404Saint ). IEC 61850 is another one of those protocols that becomes more interesting the deeper you go. At first glance, it looks like another industrial protocol to dissect: identify the transport, decode the messages, enumerate the data model, and look for places where authentication or authorization is missing and that description turns out to be inadequate. IEC 61850 is an ecosystem of communication models rather than a single protocol. MMS operates over the st...