Tom Clancy's Net Force is a novel series, created by Tom Clancy and Steve Pieczenik and originally written by Steve Perry.
There was also a spin-off of young adult books called Net Force Explorers.
The series was rebooted in 2019 with the Dark Web novel by Jerome Preisler.
The initial Net Force concept was alluded to in the third Op-Center novel, Games of State; given that Net Force was created by the same two men who created the Op-Center series, it can be assumed that they occur in the same universe.
These characters are in most or all books: The books in the Tom Clancy's Net Force series so far are: The books in the Tom Clancy's Net Force Relaunch series so far are: The first book of the series, Net Force, was adapted and altered into a made-for-TV film in 1999, starring Scott Bakula as Alex Michaels and Joanna Going as Toni Fiorella.