[quote=@Lmpkio]
[@Absolis] I don't think he can go into closed systems. Vision in the movie blocked him off via the internet, so he shut him out and he can't go in there.

Or I can accept that these are so outdated for him that he can't hack them.
[/quote]

They aren't outdated as in the signals aren't compatible. They are outdated in that they just don't have a signal to give out. What theeizardguy said makes sense as well. If he could get inside Cyano Ultron could assimilate himself inside of them.