A vulnerability known as “Dirty Stream” was discovered by Microsoft, allowing malicious applications to hijack trusted apps on high-end Android devices. Although the flaw has been patched, any data accessed before the patch remains vulnerable. The vulnerability exploited the ContentProvider system in Android, enabling harmful apps to send deceptive files that could overwrite critical data in secure storage. Microsoft noted that this could lead to arbitrary code execution, giving attackers full control over applications and access to sensitive user data. Several popular Android apps were found to be vulnerable, with over four billion installations affected. It is crucial to promptly install security updates and maintain app vigilance to protect personal data.