Principle in Focus — Lawfulness
Lawfulness means that every processing activity needs a legal basis or a justification. Laws differ most in this point: some are built on consent, others offer several equal legal bases.
Valid consent is freely given, specific, informed and unambiguous — and it can be withdrawn at any time. Pre-ticked boxes and consent hidden in terms and conditions do not count.
Prior, express and informed authorisation of the data subject is the rule, and the controller must be able to prove it. Exceptions include legal or judicial orders, medical emergencies, public data and historical, statistical or scientific purposes.