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A huge WhatsApp bug allows blocked contacts to get in touch with people.
Numerous users of the messaging app say that people they have blocked – potentially – are now able to reach out to them and send messages.
The problem appears to go away if the person is unblocked and then blocked again. But many users might not be aware of it: the bug not only allows people to send messages, but also to see people's status and profile details.
Show all 12 1 /1212 useful WhatsApp features you didn’t know existed 12 useful WhatsApp features you didn’t know existed Unsend messages You can unsend a message by tapping and holding it, hitting the Delete symbol and selecting Delete for Everyone. The feature works for all types of messages, but only if they were sent less than seven minutes ago.
12 useful WhatsApp features you didn’t know existed Dodge the blue ticks WhatsApp’s blue ticks show when sent messages have been read, but you can disable them buy going to Settings > Account > Privacy > Read Receipts. However, bear in mind that, by doing so, you’ll lose the ability to see when your own sent messages have been read. Another, more fiddly way of reading your messages without triggering the blue ticks, is enabling Aeroplane Mode before opening your messages - just remember to close the app before switching Aeroplane Mode off again.
12 useful WhatsApp features you didn’t know existed Hide your 'last seen' time Prevent your friends from finding out when you were last online by hiding your last seen time. Go to Settings > Account > Privacy > Last Seen. As is the case with disabling read receipts, hiding your ‘last seen’ time will also stop you from seeing anybody else’s.
12 useful WhatsApp features you didn’t know existed Limit data usage You can control how much data you munch through on WhatsApp by limiting the types of media you automatically download on a mobile connection. Go to Settings > Data Usage and choose the best option for you.
12 useful WhatsApp features you didn’t know existed Customise notifications If you’re expecting an important WhatsApp message from someone, set a custom notification for them by opening the chat, tapping their name at the top and hitting Custom Notifications.
12 useful WhatsApp features you didn’t know existed Format your messages To jazz up any of your messages, simply highlight it by tapping and holding it, hit the More Options key on the pop-up menu and tap the formatting option you want - bold, italic, strikethrough or monospace.
12 useful WhatsApp features you didn’t know existed Type hands-free You can get Siri or Google Assistant to type your WhatsApp messages out for you by saying either “Hey Siri” or “Okay Google”, followed by the name of the person you want to message and the actual contents of the message.
12 useful WhatsApp features you didn’t know existed Mark chats as unread When you’ve read a message but can’t reply to it straight away, you can set a visual reminder by marking it as unread. On Android, long-press the conversation, and on iOS, swipe from left to right on a chat.
12 useful WhatsApp features you didn’t know existed Email entire conversations You almost certainly won’t do this on a regular basis, but it’s a handy option to have. You can export entire conversations - complete with emoji and media attachments - by hitting More inside a chat a selecting Email Chat.
12 useful WhatsApp features you didn’t know existed Mass-message contacts You can send the same message to lots of your contacts without lumping them all into one group, much like the BCC option on email, by hitting the New Broadcast option on the app’s main menu.
12 useful WhatsApp features you didn’t know existed Pin conversations You pin up to three contacts and groups to the top of your WhatsApp conversation list by tapping and holding a chat, then hitting the pin icon.
12 useful WhatsApp features you didn’t know existed Make things easier to find You can easily mark key messages with a star, allowing you to find them easily when you need to. Just tap and hold a message and hit the star icon to save it, and return to it later by selecting Starred Messages in WhatsApp’s main menu.
WhatsApp allows its users to block any particular contact, banning them from ever sending sending messages. Such tools are of particular use to people who have been in bad relationships, for instance, who may not want to hear from their ex-partner.
But the bug allows those people to get around those blocks, and send as many messages as they want.
Reports of the problem are widespread across Twitter and other social networks.
It appeared to be affecting both iOS and Android users, suggesting that the problem is on WhatsApp's servers.
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