PARIS — An unidentified woman claimed in an interview broadcast on Thursday that she had tipped the French police off to the hide-out of the ringleader of the Nov. 13 Paris attacks, Abdelhamid Abaaoud, who was killed in a shootout.

The woman appears to have decided to speak out because she feels aggrieved that the authorities have not done more to help her make a new start. For her protection, the security services requested that she change her name and move, and as a result she had to give up her job.

The woman, who had her face hidden and her voice disguised in an interview with BFM-TV and its affiliated radio station, said she was a friend of Mr. Abaaoud’s cousin Hasna Ait Boulahcen, who was also killed when the police raided a rundown apartment in the Paris suburb of St.-Denis days after the attack.

The woman had never met Mr. Abaaoud before, she said, but was with Ms. Boulahcen when Mr. Abaaoud called unexpectedly two days after the attacks and summoned his cousin to his hiding place in the brush under a highway bridge near the Paris suburb of Aubervilliers. They went together and found him, she said. He was with another man, who turned out to be another of the attackers.