Some common security risks associated with GUIs include:

1. Phishing attacks: GUIs can be used to trick users into revealing sensitive information.

2. Input validation vulnerabilities: GUIs that don't properly validate user input can be vulnerable to SQL injection, XSS, or other attacks.

3. Authentication and authorization weaknesses: GUIs with weak login mechanisms or inadequate access controls can allow unauthorized access.

4. Data exposure: GUIs that display sensitive data without proper protection can expose it to unauthorized users.

5. Session management vulnerabilities: GUIs that don't properly manage user sessions can allow session hijacking or fixation attacks.

6. Cross-site request forgery (CSRF): GUIs that don't properly validate user requests can be vulnerable to CSRF attacks.

7. Clickjacking: GUIs that don't properly validate user input can be vulnerable to clickjacking attacks.

8. Buffer overflow attacks: GUIs written in vulnerable languages like C or C++ can be vulnerable to buffer overflow attacks.

9. Keylogging and screen scraping: GUIs that don't properly protect user input can be vulnerable to keylogging or screen scraping attacks.

10. Outdated software and libraries: GUIs built using outdated software or libraries can inherit known security vulnerabilities.

11. Lack of encryption: GUIs that don't properly encrypt sensitive data can expose it to interception.

12. Insecure configuration options: GUIs that allow users to configure insecure settings can lead to security vulnerabilities.

By understanding these common security risks, developers can design and implement more secure GUIs that protect sensitive data and systems.