MDAA

MDAA Security Analysis

An in-depth overview of the application's security architecture.

Executive Summary

The MDAA application is designed to be fully client-side, which is its most significant security strength. This means that sensitive data, such as API Keys and analysis information, is never sent to or stored on the developer's servers. This architecture completely mitigates the risk of server-side data breaches. The system employs modern and robust encryption, enforces strong password policies, and has multiple layers of protection against web-based attacks like Cross-Site Scripting (XSS) and supply-chain attacks.

Security Strengths

Client-Side Architecture

Users have complete control over their data. Information never leaves the user's computer, ensuring privacy and eliminating risks associated with a central server.

Robust API Key Protection

  • Strong Encryption: Uses the Web Crypto API with the AES-GCM algorithm, an authenticated encryption standard.
  • Secure Key Derivation: The password undergoes 250,000 rounds of PBKDF2 to create a strong encryption key, making brute-force attacks extremely difficult.
  • Secure Storage: Only the encrypted API Key is stored in Local Storage. The user's password is never stored anywhere.
  • Session-Based Decryption: The decrypted API Key is held only in temporary session memory and is destroyed when the tab is closed.

Anti-Account Takeover (ATO) Measures

If a session unlock fails (due to a wrong password or closing the prompt), the application immediately restricts all functionality. The user is locked to the Settings page, forcing them to use the "Forget Keys" function to securely wipe the encrypted data and re-configure their keys. This prevents an attacker with access to the user's machine from repeatedly trying to guess the password.

Enforced Password Complexity

The system now enforces a strong password complexity policy for key encryption, requiring a minimum of 12 characters, including uppercase letters, lowercase letters, numbers, and special characters. This significantly strengthens the protection against brute-force and dictionary attacks.

Web Application Hardening

  • Cross-Site Scripting (XSS) Prevention: All output from the AI model is sanitized using the DOMPurify library before being rendered. This effectively removes malicious code and prevents XSS attacks.
  • Content Security Policy (CSP): A strict CSP is implemented to control which resources (scripts, styles) can be loaded, mitigating the risk of code injection attacks.
  • Subresource Integrity (SRI): All external scripts loaded from CDNs include an integrity hash. This ensures that the browser only executes the script if its content matches the expected hash, preventing supply-chain attacks where a CDN could be compromised.

Considerations

Host Security

The security of the client-side model ultimately depends on the security of the host machine. If the user's computer is infected with malware (e.g., a keylogger or infostealer), it is possible that passwords or the decrypted API Key could be stolen from memory during an active session. Users should always maintain a secure computing environment with up-to-date antivirus and system patches.

Further Information

For details on our responsible disclosure policy and the scope for security testing, please see our Bug Bounty Program page. To understand the agent's capabilities, visit the Capabilities Reference.