Facebook is adding to its Messenger app an option for encrypted chats that can only be read on devices where they are sent or received.
Users also will be able to set a timer to control how long the message remains visible to anyone, the company said Friday.
The "secret conversations," feature, which is optional, does not work across different devices. So even if a person has Messenger on a phone and on a computer, the conversation will be visible on only one device.
The encrypted chats are now being tested with a limited number of people, Facebook said, but the option will be more widely available later this summer.
WhatsApp, the Facebook-owned messaging service, already uses end-to-end encryption on all messages.
Jean Smart, Ariana Grande, Michael Keaton among hosts for “SNL” season 50
Fresh off her Emmys win, Jean Smart will kick off the landmark 50th season of "Saturday Night Live."
NBC on Thursday announced the lineup of hosts for the season, which premieres Sept. 28. Joining Smart on the first show will be Jelly Roll as the musical act. He was also at the Emmys, singing during the ceremony's in memoriam segment.
It will be Smart's first time hosting "SNL."
Comedian Nate Bargatze will host on Oct. 5, with Coldplay as the musical guest.
Ariana Grande will host Oct. 12, with musical guest Stevie Nicks.
"Beetlejuice" star Michael Keaton will host on Oct. 19, the last show before Halloween, and Billie Eilish will be that night's musical guest.
The host on Nov. 2 will be "SNL" alum John Mulaney, with breakout sensation Chappell Roan as the music guest.
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