UpSignOn is a complete, simple and free password vault for private individuals. It's also a 100% French password safe that respects privacy and complies with the GDPR. PERSONAL VAULTS (100% free): Designed with the highest standards of confidentiality and security, PERSO vaults are suitable for non-business use, in families or for very small teams. Your data is stored encrypted on your devices. Your devices synchronise using end-to-end encrypted communications via a so-called zero-knowledge,