UplandGatewayOne, the station where they met, is ART's home station. In Mihira and New Tideland's system. Which is deeply anti-corporate. SecUnit even notes at the time that there aren't any security or bond companies there, so nobody should be looking for escaping SecUnits. Iris and Matteo, for all the anti-corporate missions they've been on, have never even seen one, which means Perihelion most likely hasn't either. They're not deployed on transit rings except in GrayCris-paying-to-murder-people situations, and when they are, it's a big deal accompanied by a lot of alarms and screaming and panic.

And one just kind of strolls across the private docks without setting off the weapons scanners. Wholly unnoticed.

So there was already no legitimate explanation for a SecUnit being here. That's point one. Which means it has to have an illegitimate reason.

And ART's paranoia is easily on par with Tarik's, generally speaking. Even though it's never encountered a SecUnit before it has to be aware that this could be an attack by a corporate. Except the SecUnit's got no drones, no additional weaponry, no armor, and it's wearing cargo pants and a hoodie. Which would seem to suggest that it's supposed to be mistaken for a human -- okay, maybe that explains how it got across the transit station a tiny bit? Not really. But at least it accounts for the lack of screaming.

But there's no point in it trying to pretend it's a human now, if this is the prelude to some kind of attack. It's not like ART is a passenger transport, and these are the private non-commercial docks. It can't get on board without trying to hack the lock, and it can't get too far from its handler without frying itself, so it has to do whatever it's doing before ART leaves the transit ring. Whatever attack is coming, it has to be soon. Like, right now, soon.

And it just pings ART directly.

Not even... trying to hide its presence as a potential hostile MI a little.

That is... possibly the most stupid prelude to a code attack it could have made? And if it had been trying to pretend it was human to persuade ART's crew (who aren't even here anyway) to give it access to the ship, it just blew its cover. What the hell is its human handler thinking? They're really bad at this.

And then it asks for a ride--which, again, is hilarious if it thinks it can gain entry that easily--wait. What the fuck? It's offering several hundred hours of entertainment media as a trade.

There is no human handler.

ART doesn't even have to check the governor module at that point. No human would imagine that transports watch television. Possibly, no other bots besides transports would know that they do, because transports are famously not-communicative. Nobody could have instructed it to say that. The only way the SecUnit itself could have gotten the idea that this approach might work is if it tried it before and it was successful.

Okay, so what we know for sure is: This SecUnit is a rogue, and it talks to transports.

And apparently it's hitchhiking?

This raises so many more questions than it answers.

Where the hell did it come from? How did it get across the station without setting off any alerts? Why was it chatting up transports before now? How did it even get several hundred hours of entertainment media downloads? And why the hell would any sentient being, let alone a rogue SecUnit, want to hitchhike to RaviHyral? A crummy little moon which has nothing on it except for mines.

ART's explanation of, "I was curious about you," for letting Murderbot on board is the understatement of the millennium.

It even puts up a content filter because ART got so upset about the next media they watched being inspired by a real story of a transport being badly damaged and parts of the crew being killed.