Multiple realities
(covers information from several alternate timelines)
A threat assessment system was a computer program or algorithm which performed threat assessments.
Control was Section 31's threat assessment system. (DIS: "Project Daedalus") After the Battle of the Binary Stars, Section 31 accelerated their threat assessment program to prevent a war from ever even starting. (DIS: "Through the Valley of Shadows")
In the alternate reality, Takayama-type shuttlecraft had a threat assessment system which was susceptible to interference if antimatter missiles were fired. (Star Trek Into Darkness)