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WHATSAPP users are being put on alert after a shock flaw was discovered which could spark huge arguments between you and your friends.

 fans are being warned after security experts revealed a flaw that could spark big bust-ups between you and your friends on the chat app.

Stats revealed earlier this year showed WhatsApp has over 1.5billion users, with over one billion chat app groups and 65bn messages sent daily around the world.

With such a vast number of communications being sent each and every day it’s unsurprising that scammers try to slip in fake messages to fool users.

Just recently warned about a fake vouchers scam allegedly for Costa Coffee that tries to trick victims into handing over personal details.


WhatsApp users have been alerted that the issue affects private and group chats (Image: GETTY • PIC POSED BY MODEL)

Check Point explained: “In this attack, it is possible to spoof a reply message to impersonate another group member and even a non-existing group member.”

They added: “To impersonate someone from the group, all the attacker need do is catch the encrypted traffic.

“Once the traffic is captured, he can simply send it to an extension which will then decrypt the traffic.”

Check Point went on to explain how this could work in practice.


WhatsApp has over 1.5billion users around the world (Image: GETTY)

They said: “For example, we can change the conversation to something else.

“The message with the content ‘Great!’ sent by a member of a group, for instance, could be changed to something else like: ‘I’m going to die, in a hospital right now’ and the participant parameter could also be changed to someone else from the group.”

They added: “In order to make everyone see the new spoofed message the attacker needs to reply to the message he spoofed, quoting and changing that message (‘Great’) in order for it be sent to everyone in the group.”

Check Point also outlined one potential attack where only one victim in a three member group chat (which included an attacker) was receiving faked messages.


WhatsApp users sent 65billion messages each and every day (Image: GETTY)

But the other person in the chat wasn’t, causing confusion amongst the victims being targeted.

Check Point said this gives “attackers immense power to create and spread misinformation from what appear to be trusted sources”.

Speaking to, a WhatsApp spokesperson said that the Facebook-owned chat app bans accounts that attempt to make WhatsApp modifications.


The WhatsApp flaw has the potential to cause arguments among friends (Image: GETTY • PIC POSED BY MODEL)

They said: “We carefully reviewed this issue and it’s the equivalent of altering an email to make it look like something a person never wrote.

“This claim has nothing to do with the security of end-to-end encryption, which ensures only the sender and recipient can read messages sent on WhatsApp.

“We take the challenge of misinformation seriously and recently placed a limit on forwarding content, added a label to forwarded messages, and made a series of changes to group chats.

“We ban accounts that attempt to modify WhatsApp to engage in spammy behaviour and we are working with civil society in several countries to educate people about fake news and hoaxes.”

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