Secure erasure of temporary files

Each data system can create temporary files during its normal operations. These can include e.g. roll-back journals or temporary files associated with updates.

Organisation should have documented a certain time period and process, how temporary files and documents must be destroyed. Organisation should also define procedures for recognizing relevant files that are temporary and not used for any operation by the data system anymore.

Data systems used for processing personal data should have a periodic reviewing process to identify unused temporary data for destruction.