Technologies are generally described for privacy protection for a life-log system. In some examples, a method performed under control of a life-log system may include receiving, from a user account, a request to change one or more real life-log data entries relating to a real event that are stored in a first part of a database; removing the one or more real life-log data entries relating to the real event from the first part of the database; and storing, in the first part of the database, one or more misleading life-log data entries relating to a false event corresponding to the real event.