This report is designed for professionals who want to find something interesting in the field of security analysis of Android applications. The following interesting and actual types of vulnerabilities and attacks on Activites and Intents will be affected: Exposed Activities, Intent Sniffing and Injection, Insecure Webview implementation. The report aims to familiarize the audience with spectacular manifestations of vulnerabilities in the field of Android applications, and to show that working with analysis of the security of Android applications is very simple and interesting.