An application for storing and categorizing has been developed. The application uses dual-factor authentication for user access. After authentication, users can upload sensitive data. The application

Using self-developed algorithms for encryption is a highly discouraged security practice, as custom cryptography is often insecure and introduces more vulnerabilities than it solves.

While installing virtual firewalls is part of a good security posture to control network traffic, they primarily prevent unauthorized access attempts rather than directly addressing internal system exploits caused by unpatched software.

Changing the ISP provider has no direct impact on preventing 'system exploits' against an application or server, as these exploits target vulnerabilities within the system itself, not the network connectivity provider.

System exploits typically leverage known vulnerabilities in operating systems, applications, or libraries. Regularly applying all available patches and updates is the most fundamental and effective security measure to fix these vulnerabilities, thereby preventing attackers from exploiting them in the future.