Jack Dorsey says he will give $1 million per year to Signal app

Twitter CEO Jack Dorsey testifies during a remote video hearing held by subcommittees of the U.S. House of Representatives Energy and Commerce Committee on "Social Media's Role in Promoting Extremism and Misinformation" in Washington, U.S., March 25, 2021. U.S. House of Representatives Energy and Commerce Committee/Handout via Reuters/File Photo

(Reuters) - Twitter co-founder Jack Dorsey said in a blog post on Tuesday that he will give a grant of $1 million per year to encrypted messaging app Signal, the first in a series of grants he plans to make to support "open internet development."

Social media should not be "owned by a single company or group of companies," and needs to be "resilient to corporate and government influence," Dorsey wrote in a post on Revue, a newsletter service owned by Twitter.