And it blocks messages that don't comply.
While Facebook says its Messenger conversations aren't monitored by humans, users should be cautious about what they share on the app.
We do not know how powerful the new Facebook Messenger system will be - with Zuckerberg's messages presumably years old.
According to a Facebook Messenger spokesperson, the automated tools are created to stop abusive behavior. Now, in that case, our systems detect that that's going on. Further, an option is provided to users to review posts shared/ reacted, friend requests sent and even things searched on Facebook along with the option to delete it if one wishes to.
Facebook launched Messenger as a stand-alone app in 2014. And then there's the fact that once your average, non-CEO Facebook user sends a message on Messenger, it can exist forever in another's inbox. WhatsApp had 1 billion daily users in 2017. Therefore, the secret deletion of the messages looks a little shady at a time when the company is grappling with the data privacy scandal issue.
Facebook has been scrambling for weeks in the face of the disclosure of the hijacking of private data by the British consulting group working for Donald Trump's 2016 presidential campaign.
Facebook Founder and CEO Mark Zuckerberg speaks on stage during the annual Facebook F8 developers conference in San Jose, California, U.S., April 18, 2017.
Facebook's announcements come days before Zuckerberg is set to testify to Congress on another matter - the company's privacy practices and the controversy around Cambridge Analytica, a data analysis firm that improperly accessed as many as 87 million Facebook users' personal data.
In the wake of waves of criticism, Facebook continues to institute more changes to its platform - including new stringent rules for those placing issue-based ads - in an effort to thwart future election interference. But Facebook Events have information about other people's attendance as well as posts on the event wall, so it's important that we ensure apps use their access appropriately. We will also label them and advertisers will have to show who paid for them.
He is to appear before a United States congressional panel next week to address privacy issues. Facebook never notified them it was doing this. This may include users' address books on their phones, as well as their call logs and text histories.
A similar but separate policy will require administrators of large pages to be verified, which will "make it much harder for people to run pages using fake accounts, or to grow virally and spread misinformation or divisive content that way", Zuckerberg writes. Of course, Facebook is also tasked with a monumental responsibility: It has amassed data about more people than have ever lived in a single country in the history of the world, and now has to figure out how to manage it. It seemed to have been done without explicit consent, though Facebook says it only collected such data from Android users who specifically allowed it to do so - for instance, by agreeing to permissions when installing Facebook.
The Cambridge Analytica scam has revealed major loopholes in Facebook's privacy and security policies.