Involves sending and receiving a specially crafted (whatsapp) message with hidden symbols in-between spaces. Tapping on a portion of the text will basically make the app 'expand' the hidden symbols, potentially overloading the app and even the OS
A bug is being forwarded via WhatsApp messages which when tapped, could send not just the Android app crashing but possibly even the entire Android device as well
Another "message bomb" which is causing the messaging platform to crash is more "nefarious, looks too innocent" and does not come with a warning. The message includes special characters followed by an emoji that do not display visibly but are used to change text behaviour. The message, containing the text "This is very interesting!" is followed by a crying laughing emoji at the end. As per a Reddit user, the message is so heavy that it is crashing the smartphone upon copying and pasting on another chat box. The string of characters, leading to the enormous size of the message is what is expected to be crashing the app.
http://www.ehackingnews.com/2018/05/new-whatsapp-message-can-crash-your-app.html
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