Many kinds of personal data, such as names, personal identity codes, addresses, allergy information, bank account numbers, dates of birth, photographs and videos are processed in hobby activities. Personal data cannot usually be stored indefinitely. Instead, a specific storage period must be defined for them, and the data must be erased when that period has elapsed. As a rule, personal data may only be stored for as long as necessary. Read the article for tips on the storage of personal data.