Facebook WhatsApp messenger service said Wednesday that it has solved the latest bug on the platform that allowed hackers to take over the user's applications when answering an incoming video call.
The announcement follows reports from technology distributions ZDnet and The Register that vulnerability, which affected WhatsApp applications on Apple and Android smartphones, was discovered in late August and was resolved by Facebook in early October.
"We perform routinely with security researchers from around the world to ensure WhatsApp remains safe and reliable. We promptly gave a correction to the latest version of WhatsApp to resolve this issue," said Ann Yeh, Spokeswoman for WhatsApp, Reuters in a email.
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"This is a big deal," Travis Ormandy, a researcher at Google Project Zero, who discovered the error, said on Twitter. "Only + + answering a call from an attacker can completely compromise WhatsApp."
Facebook has suffered a number of security-related issues in the past year. The social media company last week revealed its worst security breach that affected nearly 50 million accounts.
The Facebook shares were down 1.8 percent at $ 155.02 on Wednesday.