WhatsApp urges users to upgrade app after report of spyware attack

Facebook’s WhatsApp on Tuesday urged users to upgrade to the latest version of its popular messaging app following a report that users could be vulnerable to having malicious spyware installed on phones without their knowledge.

“WhatsApp encourages people to upgrade to the latest version of our app, as well as keep their mobile operating system up to date, to protect against potential targeted exploits designed to compromise information stored on mobile devices,” a spokesman said.

“We are constantly working alongside industry partners to provide the latest security enhancements to help protect our users.”

The Financial Times reported that a vulnerability in WhatsApp allowed attackers to inject spyware on phones by ringing up targets using the app’s phone call function. It said the spyware was developed by Israeli cyber surveillance company NSO Group.