What do you need to anonymize ? what type of system are you asking about ? do you need to comply with GDPR ? names, addresses, id numbers or account numbers ca

What do you need to anonymize ? what type of system are you asking about ? do you need to comply with GDPR ? names, addresses, id numbers or account numbers can be easily randomized. Dates and numbers (what kind of system is it?) are trickier since they are used in calculations. Finally the tricky part is making sure that the anonymized data still can't be tracked back to real entities.