Now we are going to now just take a quick dip into what anonymisation is, because when personal is anonymised, it stops being personal data
, and this should not be mixed up with pseudonymisation
of personal data. With anonymisation it involves a process, a quite complex process using a combination of techniques, including de-identification of data and masking for example to actually reach the state of anonymised data. Now anonymised data is irreversible so it cannot be reversed back to personal data.