SAN FRANCISCO—The former security chief of Uber Technologies Inc. swore in a closed legal proceeding that he knew of no attempts to steal trade secrets from anyone, including Alphabet Inc’s self-driving unit Waymo, and would be “shocked” if that had occurred.
In a deposition taken in mid-December near San Francisco, Joe Sullivan, Uber’s security chief from 2015 to 2017, said that the most explosive claims made by another former Uber employee of unethical and illegal behavior by members of his security team were false.
