I'm looking to identify a book that I read a long time ago and have not been able to remember.
It's interplanetary sci-fi. There is a lady with a ring, and the ring contains an illegal OS called Prime. Can't remember if she is the protagonist.
There is a scene where she kills a soldier by using the ring to override his armor neck port and let the blood out. Also there are soldiers who investigate a swamp and have 360 degrees eye helmets, very advanced tech.
Only other thing I can remember is that gamma ray sterilization of planets is a thing too.