In a blog post, Zuckerberg called the feature 'an important tool in developing a privacy-focused social network'. In spring 2019, Mark Zuckerberg announced plans to introduce end-to-end encryption to Facebook and its other platforms (apart from WhatsApp, which already has it).
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It also meant that WhatsApp for PC merely acted as 'mirror' of what was being dictated by the phone (even though users were typing the actual messages using their PC).īut with multi-device functionality, each device linked to a WhatsApp account – including PC and tablets – now has its own identity key, so they're no longer relying on the phone for end-to-end encryption. That meant each smartphone acted as 'the source of truth' and was the only device capable of end-to-end encrypting messages for another user.
The cryptographic keys needed to access the service are automatically provided only to the two people in each conversation, through their phone. It acts like 'an unbreakable digital lock' that keeps the contents of messages secure and viewable to no-one except the sender and the recipient.Įnd-to-end encryption is intended to prevent data being read or secretly modified when it is in transit between the two parties. WhatsApp, which was bought by Facebook in 2014 for about $19 billion, says every private message sent using WhatsApp is secured with end-to-end encryption by default. It will work 'while still maintaining the same level of privacy and security', it added, in a reference to the privacy standard.Įnd-to-end encryption ensures only the two participants of a chat can read messages, and no one in between – not even the company that owns the service. The platform has detailed the change in a Facebook Engineering blog post, and how it affects end-to-end encryption. With the new change, it won't matter if your phone is off or disconnected – you'll still be able to send chats on WhatsApp for PC.Īnd you'll be able to do this on up to four 'non-phone' companion devices simultaneously (in addition to your phone if it's on and connected). Make sure your phone has an active internet connection.' So, if you're happily sending messages on your PC and your phone dies, gets switched off or disconnects from the internet, you can't send messages on PC anymore.Ī warning message appears on the PC app saying: 'Phone not connected.
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Once that's done, you can start sending messages from the desktop app – but to do this, your phone has to be switched on and connected to the internet.
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March's update brought both of these features to WhatsApp for desktop.Ĭurrently, you can download WhatsApp for your Mac or Windows computer by visiting Once it's downloaded, you can connect it to your WhatsApp account by pointing your phone's camera at a QR code that appears on the PC screen. WhatsApp began rolling out voice calls for its mobile app in 2015 and video calls the following year. In March this year, WhatsApp rolled out one-to-one voice and video calls for the desktop version of its chat platform on Windows PCs and Apple Macs. WhatsApp is predominantly known for its mobile app, even though it initially launched for PCs back in 2015. 'Now you can use our desktop or web experiences even when your phone isn't active and connected to the internet.' 'Very excited to be launching a beta of our new multi-device capability for WhatsApp,' said Will Cathcart, head of WhatsApp, which is owned by Facebook.
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