What group kidnapped Anakin's mother in "Attack of the Clones"?

The group that kidnapped Anakin’s mother in “Attack of the Clones” was the Tusken Raiders.

On Tatooine, the Tusken Raiders captured Shmi Skywalker, Anakin’s mother, and took her to their encampment. Anakin sensed that she was in danger and travelled to find her, arriving after she had been held and badly mistreated for about a month. Shmi died in his arms shortly after he found her.

Her death became a major turning point in Anakin’s story. Overwhelmed by grief and anger, he killed the Tusken tribe, including women and children. This act foreshadowed his later fall to the dark side and showed how fear of loss could overpower his judgment.

A common mix-up is confusing the Tuskens with bounty hunters or the Separatists. The film identifies the desert-dwelling Tusken Raiders as Shmi’s captors, although Anakin’s revenge against the entire tribe raises questions about whether every member was involved.