Explain the terms 'Password Security' and 'Data Audit'.

Password Security: It is widely accepted security control to access the data. Only the authorised person can access the data. Any user who does not know the password cannot retrieve information from the system. It ensures data integrity. It uses a binary encoding format of storage and offers access to the database. Data Audit: Audit feature of accounting software provides the user with administrator right in order to keep track of unauthorised access to the database. It audits for the correctness of entries. Once entries are audited with alternations, if any, the software displays all entries along with the name of the auditor user and date and time of alternation.