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A sophisticated influence campaign tried to employ such things as Black Lives Matter and wariness of Muslims as wedges.
The company’s investigation at first feared a Russian hack. It then uncovered a sweeping disinformation campaign brought by shadowy accounts.
The company had shown some of the ads to investigators but taken back copies.
Lawmakers are seeking the company’s internal report on election meddling.
Some experts worry that the technology, as it becomes widespread, will be used to invade people's privacy.
The searches can be done without a warrant or probable cause.
The way such advancements are used against consumers might not be clear for years.
The company so far has not provided clear answers to these issues.
The Senate Finance Committee’s top Republican and Democrat want the credit-rating agency to answer key questions about the troubling hack.