https://www.techradar.com/news/whatsapp-flaw-lets-hackers-intercept-and-manipulate-messages

WhatsApp users have been warned to be vigilant against a new security flaw that could allow outsider to intercept and alter messages.

Researchers from security firm Check Point found that hackers could be able to take advantage of a vulnerability in WhatsApp's security protocols to change the content of a message.