KSI Widow is a fictional Transformer created by KSI in Transformers: Age of Extinction. She is a drone-like Decepticon-style machine built from transforming technology rather than a traditional Cybertronian. In the film, KSI Widow serves as one of the company’s engineered combat units, used to demonstrate KSI’s ability to mass-produce Transformers. She appears as part of the threat surrounding the KSI facility and the broader conflict over stolen Transformer technology.