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Immediate Action Alert

Adobe Acrobat Extension Flaw Let Malicious Sites Read WhatsApp Web Data

A flaw in the Adobe Acrobat extension for Chrome could have allowed a malicious website to quietly access information from WhatsApp Web on a person’s computer. The issue has been fixed, but people should make sure their browser and extensions are fully updated.


Who is at risk

People who use Google Chrome with the Adobe Acrobat extension installed, especially if they also use WhatsApp Web, are most at risk.

What to watch for

Watch for unusual WhatsApp activity, unexpected logins, strange messages, or browser extensions that seem outdated or unfamiliar.

What to do

Update Google Chrome and the Adobe Acrobat extension right away, and remove the extension if you do not need it.