A personal data breach must be reported to the supervisory authority if the breach may pose a risk to data subjects rights and freedoms. Data subjects, on the other hand, must be informed if the breach is likely to pose a high risk to their rights and freedoms. For example, registrants may take steps to reduce the adverse effect (e.g. by closing their credit card).
The notification must include the following information:
The organization shall define the procedures for reporting security breaches in the supply chain. The process must take into account all kinds of roles in the supply chain, whether we are the customer of the end product or one supplier in the chain.
Policies shall take into account agreements with partners and customers and their commitments regarding the reporting obligations of both parties.