The abylon SHAREDDRIVE (encrypted data drive) completely integrates itself in the MS File Explorer and is shown there as an independent drive. The general functions of the File Explorer are supported, as for example copy, pasting and opening. In each case the stored file was encrypted (Blowfish - 448 bit / AES - 256 bits) on the hard disc without any additional operation for the user. The encrypted data can be stored on the local computer, on a network computer or a FTP server, which are administrate with the connection manager. The data transfer between server and client is encrypted and the data will be decoded on the client only. Special software is not necessary on the server. The access rights of the encrypted drives is controlled with a password (SYMM-System) or X.509 certificates (HYBRIS-System, PKCS, RSA). An additional safety offers the masking of the original file names with random numbers. Only the entitled person see the correct file name in the File Explorer. Furthermore the abylon SHAREDDRIVE is especially secure in case of computer crashes. Always only the needed file is opened and all other data stored encrypted on the hard drive. The possible data loss is reduced to a minimum by that. After the restart of the computer the temporary files list is always cleaned thoroughly honest. Through the individual encryption and storing of every individual file the abylon SHAREDDRIVE reduced the transfer volume and memory space in case of backup operations.