phpGraphy has been developped with security and simplicity as a key argument but as no software can be perfect, it's certain that someone someday may find a security hole/bug. If you have found one, please contact the phpGraphy DevTeam (See Contact section of the website) prior to making the flaw public. This way, we'll ensure that there is patched version available and conscensiou site sadministrators will be able to patch in time.