Common mobile app security threats include a range of vulnerabilities that can compromise the safety of your app and user data. These threats often arise from malicious files or links, data breaches, and improper authentication methods. Weak encryption and the use of malicious mobile code can further expose apps to risks. Additionally, vulnerable networks, rooted or jailbroken devices, and insecure data transmission are other critical security challenges that apps must address to ensure a secure environment for users.