WhatsApp, the most popular instant messaging application in the world, has been in our lives for a long time. WhatsApp, which has made the text messages go down in history with its release, has more than 1 billion users today. Users; They can use WhatsApp via their smart phones, tablets, computers or any website they connect to. The desktop version of WhatsApp is actively used by many users. People who spend most of their time on a computer use such a method to avoid messing with their phones. However, some time ago, a vulnerability has been identified in the desktop version of WhatsApp that could deeply affect users. Fixed WhatsApp’s user data compromise vulnerability The vulnerability uncovered by a cyber security company called PerimeterX was causing hackers to access users’ data via the desktop version of WhatsApp. It is not known at the moment if any users affected by this vulnerability are present. However, according to the statements made by PerimeterX, it is highly probable that someone is affected by this vulnerability. Fortunately, there is no longer such a risk because PerimeterX said in a new statement yesterday that the vulnerability was addressed by WhatsApp. Cyber security researchers say that such problems can happen in the future, as they have experienced in the past, and users must always be in control. Moreover, according to cyber security experts, users are not at risk only in the desktop version of WhatsApp. The web version of WhatsApp is at similar risks. Experts give users some advice to avoid such situations. The first of these recommendations is that the WhatsApp apps used are up to date. In other words, the fact that the WhatsApp application you use on your smartphones and computers is up-to-date means fixing the known security holes. Also, if you are using WhatsApp Web, you need to make sure that the internet browser you use this time is up to date.