Investigators from Israeli company Check Point Software Technologies Ltd. (Nasdaq: CHKP) announced that they had discovered dangerous vulnerabilities in the WhatsApp app enabling an attacker to send fake messages, impersonate someone else, and prevent specific messages from getting through to a person or group in which any message is distributed. It is possible to impersonate someone using these fake messages and send misleading messages, prevent people from receiving messages and send fake messages to specific people in a group.
The Check Point investigators found three important vulnerabilities: a trained attacker can edit a message that has already been written, impersonate an innocent person, and send a different text and make it seem that the innocent person sent it.
Check Point product vulnerability research head Oded Vanunu told "Globes" that after the company notified WhatsApp of the vulnerabilities, WhatsApp answered that it was unable to fix the problem immediately because it involved the structure of the application and the features that it offers.