MOMENTS: Never forget your favorite moments.REAL-TIME LOCATION: Not good at explaining directions? Share your real-time location with the tap of a button.Make group video calls with up to 9 people. VOICE & VIDEO CALLS: High-quality voice and video calls to anywhere in the world.

Create group chats with up to 500 members. MORE WAYS TO CHAT: Message friends using text, photo, voice, video, location sharing, and more.Chat and make calls with friends, read news and use local services in Official Accounts and Mini Programs, play games with friends, enjoy mobile payment features with WeChat Pay, and much more. WeChat is more than a messaging and social media app – it is a lifestyle for one billion users across the world. When a replayed voice is moved, the magnetic field changes and the phone can detect this.ĭon’t miss out on ET Prime stories! Get your daily dose of business updates on WhatsApp.Connecting a billion people with calls, chats, and more The system requires that the phone be moving - swung in front of the mouth - when the voice recognition is being used. It requires a phone user to be close to the phone when speaking to guarantee that anyone using a replay of a voice over a mechanical speaker is close enough that the magnetic field can be detected. In addition, the system uses the phone's trajectory mapping algorithm to measure the distance between the speaker and the phone. Ren's system uses the magnetometer in a phone, which is there for the phone's compass, to detect a magnetic field.

Any replay must be broadcast on a speaker, and speakers have magnetic fields. A human can imitate your voice, but again, existing technology can detect this.Ī third method is replaying someone's actual voice, and here is where Ren's invention comes in. There is often no touch screen or keypad so voice authentication may be useful,' Ren said.Īttacks can synthesise your voice, but these are detectable by existing algorithms. 'With the Internet of things, what is a security interface? It is not like the phone. Voice recognition could become a more common security tool because more Internet-connected devices are being developed that do not have keypads. The best way to protect your cellphone, he said, is to use several security methods.

Wechat hacker app download