WASHINGTON (AP) — The Latest on a House committee hearing on social media issues (all times local):
Facebook's Sheryl Sandberg says the company is getting better at finding and combating adversaries who try to use the platform.
The company's No. 2 executive says in prepared testimony ahead of a Senate intelligence committee hearing Wednesday that those adversaries include financially motivated troll farms and "sophisticated military intelligence operations."
The Menlo Park, California-based company revealed last year that a Russian internet agency had used the platform to try to influence the 2016 U.S. presidential election. Earlier this year, special counsel Robert Mueller indicted 13 Russians behind the social media effort.
Sandberg says in the testimony that Facebook regularly looks for and discloses state-sponsored threats to law enforcement but does not make the details of these reviews public for security reasons.
Twitter's CEO says the company isn't biased against Republicans or Democrats and is working on ways to ensure that debate is healthier on its platform.
In prepared testimony released before a House hearing Wednesday, Jack Dorsey says he wants to be clear about one thing: "Twitter does not use political ideology to make any decisions, whether related to ranking content on our service or how we enforce our rules."
The testimony comes as some Republicans say conservatives have been censored on social media.
Dorsey offered an explanation of how San Francisco-based Twitter uses "behavioral signals," such as the way accounts interact and behave on the service. Those signals can help weed out spam and abuse.
He says such behavioral analysis "does not consider in any way political views or ideology."