YouTube is considering far-reaching changes to its platform after a string of incidents that put the video-streaming powerhouse on the defensive.

Executives at the Google unit are debating moving all children’s content into a separate product, the existing stand-alone YouTube Kids app, to better protect young viewers from objectionable videos, said people briefed on the talks. That would be a seismic and risky switch, as children’s videos are among the most popular on the platform and carry millions of dollars in advertising.

Some YouTube employees are pushing for another significant modification. They are encouraging the company to switch off for children’s programming a feature that automatically plays a new video after one has been completed, the people briefed said.

While that default setting—known as YouTube’s recommendation system—has helped boost audience hours to new heights, it has also opened the company up to criticism that children and parents can select innocuous videos only to be automatically transferred to inappropriate fare.

The proposed changes are motivated in part by a continuing investigation by the Federal Trade Commission, people familiar with the matter said. The probe was initiated by a complaint last year from consumer groups that accused Alphabet Inc.’s Google of exploiting YouTube’s popularity with children to illegally amass data on minors under 13 without parental consent, the people said. The groups also alleged that the website subjected children to inappropriate content.