Vulnerabilities associated with mobile applications include insecure data storage, inadequate authentication, and susceptibility to malware. Many apps may store sensitive information, such as personal or financial data, insecurely, making it accessible to unauthorized users. Additionally, weak authentication mechanisms can lead to unauthorized access, compromising user accounts. Mobile apps can also be exploited through attacks like phishing, where malicious actors trick users into providing personal information. Other vulnerabilities include insufficient encryption during data transmission, exposing users to eavesdropping. Developers must prioritize security measures to protect against these threats and ensure user safety.