Concerns about the Russian messaging application Max have grown due to vulnerabilities and surveillance features identified by IT specialists. An analysis revealed that Max can disable encryption on conversations with a single command and includes a forced-update feature that restricts user communication until the app is updated. Max collects extensive user data, including a list of installed applications and checks for VPNs, and has the ability to disable TLS session validation. Additionally, a version of Max included a neural network for speech recognition, although these features were later removed.
Despite these concerns, VK, the parent company of Max, reported rapid user growth, surpassing 120 million users as of early May, with a daily reach of 68 million users. Many users are switching from Telegram to Max due to accessibility issues with Telegram and pressure from authorities. Major mobile carriers in Russia have collaborated with VK to send authentication messages through Max, further embedding the app in users' daily lives.
However, Max has faced challenges in becoming a primary source for news and entertainment, hosting around 300,000 public channels compared to Telegram's 1.6 million, which has hindered advertising growth and led to an increase in scams.