KSeF was built, maintained, and fully controlled by the Ministry of Finance. All invoices are stored on secure servers within the Ministry and are encrypted using private keys accessible only to authorized Ministry officials. Outside KSeF, decryption is impossible, making unauthorized access entirely unfeasible.
The system implements multi-level authorization for any data access, with every request logged and monitored. Only officials with a valid justification can access the system, and even then, access is granted for a limited period.
“KSeF is a critical infrastructure system protected by the highest cybersecurity standards,” stated a Ministry spokesperson. “We continually update our systems to prevent cyberattacks, and all security measures meet national and international certifications.”
Experts point out that KSeF follows the requirements of the National Cybersecurity System and undergoes regular performance, functional, and security testing. The Ministry also works with external security providers to ensure system integrity, without giving them access to the content of invoices.
Authorities urge the public to trust only official sources, including the Ministry of Finance and the National Tax Administration, and disregard misinformation circulating online.
Key Takeaways:
- KSeF is fully controlled by the Ministry of Finance
- Encrypted private keys ensure data privacy
- Access is strictly monitored and logged
- KSeF meets top cybersecurity standards
- Only official sources should be trusted
As the system becomes increasingly vital to Polish businesses, officials stress that any false claims can undermine trust in critical national infrastructure.