1 If a large volume of sensitive personal data is processed by automated means or if high-risk profiling is carried out and if preventive measures are unable to guarantee data protection, the private controller and its private processor must as a minimum / log the storage, alteration, reading, disclosure, deletion and destruction of the data. A log file must in particular be kept if otherwise it would not be possible to establish whether the data has been processed for the purposes for which it was collected or disclosed.
2 The responsible federal body and its processor shall in the case of automated processing of personal data log as a minimum the storage, alteration, reading, disclosure, deletion and destruction of the data.
3 In the case of personal data that are generally accessible to the public, logs shall be kept as a minimum of the storage, alteration, deletion and destruction of the data.
4 The log file must provide information about the identity of the person that carried out the processing, the form, date and time of processing, and, if applicable, the identity of the recipient of the data.
5 The log files must be retained for at least one year and kept separate from the system in which the personal data are processed. They may only be made accessible to the bodies and persons that are required to review the application of the data protection regulations or to safeguard or restore the confidentiality, integrity, availability and traceability of the data, and may only be used for this purpose.