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A newly-discovered WhatsApp bug allows hackers to infiltrate and message your group chats and private conversations.

If combined with other existing glitches, the vulnerability could allow cyber criminals to impersonate you and send fake messages to your friends and family, security experts have warned.

Researchers who unearthed the bug believe it is of the 'utmost importance' WhatsApp fixes the problem – as it could be used to quickly spread misinformation.

The Facebook-owned company says it is aware of the flaw but has no plans to patch the problem as the exploited vulnerability forms a core part of the app's design