To ensure data security and prohibit non authorised access to your private clinic data the extract data will be locked to authorised CAT4 users belonging to the originating clinic only. CAT4 will not allow users from other organisations to open a data file that was collected in your clinic – only de-identified extracts can be opened by users from outside your organisation. This functionality was introduced to improve security and prevent access to patient data for anyone not working at the clinic where the data originated.