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Reporting personal data breaches to authorities / data subjects

Critical
High
Normal
Low

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:

  • a clear description of the personal data breach
  • the name and contact details of the data protection officer or other contact point from which further information can be obtained
  • the likely consequences of the personal data breach
  • the measures proposed or already taken by the controller; where appropriate, measures to mitigate possible adverse effects.
Connected other frameworks and requirements:
33. Notification of a personal data breach to the supervisory authority
GDPR
34. Communication of a personal data breach to the data subject
GDPR
16.1.5: Response to information security incidents
ISO 27001
6.1.3: Contact with authorities
ISO 27001
A.10.1: Notification of a data breach involving PII
ISO 27018

Communication in accordance with the incident response plan in the event of a incident

Critical
High
Normal
Low

In the event of an incident , communication with internal and external stakeholders must be in accordance with the incident response plan.

Connected other frameworks and requirements:
RS.CO-3: Information sharing
NIST CSF
6.3 (MIL1): Respond to Cybersecurity Incidents
C2M2

Processes for reporting information security events related to offered cloud services

Critical
High
Normal
Low

When offering cloud services, the organisation needs to have planned processes or procedures for:

  • how the cloud service customer reports an information security event to the organisation
  • how the organisation reports information security events to cloud service customers
  • how the cloud service customer can track the status of a previously reported information security event
Connected other frameworks and requirements:
ID.RA-3: Threat identification
NIST CSF
DE.DP-4: Event detection
NIST CSF
RS.CO-3: Information sharing
NIST CSF
RC.CO-1: Public relations
NIST CSF
16: Information security incident management
ISO 27017

Detailed assessment of the risk of data breach for data subjects

Critical
High
Normal
Low

The controller must assess the risk of the personal data breach to the data subjects. The assessment must take into account, for example, the following:

  • How likely is it that the data will be used to cause harm?
  • What harm could the data be used for (e.g. identity theft, fraud, psychological distress, humiliation or reputational damage)?
  • Nature, sensitivity and amount of personal data
  • How easy it is to identify the registrant using the data?
  • Are there many children or otherwise vulnerable people among the registrants?

The risk assessment affects the urgency and scope of reporting a breach.

Connected other frameworks and requirements:
34. Communication of a personal data breach to the data subject
GDPR
6.1.3: Contact with authorities
ISO 27001
16.1.5: Response to information security incidents
ISO 27001
RS.CO-3: Information sharing
NIST CSF
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