A newly identified vulnerability known as Sturnus poses a significant risk to users of messaging platforms like WhatsApp, Telegram, and Signal on Android devices, potentially affecting millions and leading to severe privacy breaches. This Trojan can grant cybercriminals complete remote control over infected devices, allowing them to surveil user activities, intercept messages, and steal banking information. It can create convincing fake login screens to harvest banking credentials and execute fraudulent actions while obscuring the device's display from the user. Although Sturnus is still in its developmental stage and has not achieved widespread distribution, security experts warn that its potential for harm is significant. To protect against such threats, users are advised to download applications only from the official Google Play Store, avoid unverified sources, review app ratings, verify developers' reputations, and refrain from installing apps accessed through links or social media.