With regard to logical protection:
The exchanges between the servers and your PC  are crypted by a shared key (known as SSL - Secure Socket Layer) preventing the analysis and the reading of data passing on the network. It is  the method used by the banks (small lock bottom of pages). Servers are equipped with Firewall and antivirus. They are regularly audited by an application software to check possible fault of safety issue,  the update of the programs and the installation of the corrective patches is regularly carried out in order to ensure a complete protection.

Saving and "disaster recovery plan "? 

Your data  are save every night on two different sites and distinct from several kilometers.  The good realization of the safeguards is controlled all weekly days by our technicians.  The disaster recovery plan is tested regularly, up to know we didn't have to use it.