It’s about infrastructure. We conducted a Crisis Audit, including inspecting all components, history, servers and logins and found when this happened, who did it and how. The data was restored. Then, we reconfigured their servers, audited their code, and relaunched their new, (more secure) platform in X days. Then the product was provided with a technical support.
The new security system and infrastructure allow an infinite number of employees and developers to simultaneously work on the product and not worry about overflowing information or about hacking.