Communications-services companies rose slightly as markets struggled for direction. Facebook has slowed the rollout of new products in recent days, people familiar with the matter said, amid media reports and congressional hearings related to a trove of internal documents showing harms from its platforms.

Executives at the social-media company have also put a hold on some work on existing products while more than a dozen people are involved in conducting "reputational reviews" to examine how Facebook may be criticized and to ensure products don't adversely impact children, the people said.

Amazon.com Inc.-owned Twitch Interactive, the videogame streaming platform, said Wednesday it suffered a data breach, with information leaked on the online chat forum 4chan. The 4chan user who allegedly posted Twitch data said they did so to hurt Twitch's business.

The person claimed to have access to information including Twitch source code, internal security tools and creator payouts.

NBCUniversal said former Hulu chief Kelly Campbell would become president of Peacock, a year-old streaming platform that parent Comcast Corp. is looking to build into a powerhouse. The move comes after Ms. Campbell resigned on Monday from her role as president of Walt Disney Co.'s Hulu streaming service.

Write to Amy Pessetto at amy.pessetto@dowjones.com

(END) Dow Jones Newswires

10-06-21 1713ET