With the Trigs and other groups exploring, it would seem logical that some attempts to monitor local system communications would occur. These might be nothing more than high speed scouts warping between planets while scanning for infrastructure and monitoring local comms to determine system occupancy.
These would appear randomly, in groups of 1 to 5 or so, maybe coming through a tiny wormhole from ‘elsewhere’, just as rats spawn today.
They would be very small and very fast 2500m/s+ and easy to kill if you could catch one. The wreck could be lootable and they might drop some minor item on occasion.
Players will be alerted to their presence by D-scan or by seeing the ship join the local channel with a name in Trig text. The can be tracked with combat probes. Ship type will be a random Trig text in scan windows as well, interference.
The ships are harmless and will leave the system in groups or at random over time. The use of Trig text in local will be a dead give away that they are harmless to players, but also alerting them to an opportunity to hunt.
Bots can have fun with it.