https://www.reuters.com/article/us-zoom-video-commn-acquisition/zoom-pushes-ahead-on-security-buying-keybase-and-reaching-pact-with-new-york-idUSKBN22J22T >Zoom Video Communications Inc pushed forward on Thursday in its effort to revamp its security, striking a deal with the New York attorney general's office to protect users' privacy and purchasing secure messaging startup Keybase.