GDPR for Employees Course (EU): Personal data breaches

Quiz thématique sans limite de temps : 18 questions sur Personal data breaches, avec une explication après chaque réponse. Les questions et les réponses sont mélangées à chaque fois.

  • Formation
  • Union européenne
  • 100 questions
  • Vérifié le 13 octobre 2026
  • Vérifié (faits) le 13 octobre 2026
Commencez par les leçonsGDPR for Employees Course (EU): Lessons : environ 150 minutes de lecture. Chaque question du test est traitée dans les leçons.

Quiz thématique 6 : Personal data breaches

  1. Question 1 sur 18

    Which of these is a personal data breach?
    Voir la réponse

    Réponse: A. A customer's details are emailed to the wrong person

    A personal data breach includes unauthorised disclosure of personal data, even by accident (Article 4(12) GDPR).

  2. Question 2 sur 18

    Ransomware encrypts customer records so staff can no longer open them. What type of breach is this?
    Voir la réponse

    Réponse: A. Availability breach

    An availability breach is the accidental or unauthorised loss of access to, or destruction of, personal data.

  3. Question 3 sur 18

    Someone without permission changes the bank details in several employee records. What type of breach is this?
    Voir la réponse

    Réponse: D. Integrity breach

    An integrity breach is the unauthorised or accidental alteration of personal data.

  4. Question 4 sur 18

    You think you may have caused a data breach at work. What should you do first?
    Voir la réponse

    Réponse: C. Report it internally straight away, following your procedure

    The controller has strict deadlines, so possible breaches must be reported internally at once to the right contact, following your procedure.

  5. Question 5 sur 18

    Where feasible, within how many hours of becoming aware must the controller notify the authority of a breach?
    Voir la réponse

    Réponse: A. 72 hours

    Article 33(1) GDPR: without undue delay and, where feasible, not later than 72 hours after becoming aware of it.

  6. Question 6 sur 18

    Who does the controller notify about a personal data breach under Article 33?
    Voir la réponse

    Réponse: D. The data protection authority

    Article 33 GDPR requires notification to the competent supervisory authority, which is the national data protection authority.

  7. Question 7 sur 18

    In which case may a controller decide not to notify the authority of a breach?
    Voir la réponse

    Réponse: C. When it is unlikely to result in a risk to people

    Article 33(1) GDPR: notification is not needed if the breach is unlikely to result in a risk to people's rights and freedoms. It must still be documented.

  8. Question 8 sur 18

    When must the affected people themselves be told about a breach?
    Voir la réponse

    Réponse: A. When it is likely to result in a high risk to them

    Article 34(1) GDPR: people must be told without undue delay when the breach is likely to result in a high risk to their rights and freedoms.

  9. Question 9 sur 18

    Which breaches must the controller document?
    Voir la réponse

    Réponse: D. All of them, even those not notified

    Article 33(5) GDPR requires the controller to document every personal data breach, its effects and the action taken, even if it is not notified.

  10. Question 10 sur 18

    A processor discovers a breach of data it handles for a controller. What must it do?
    Voir la réponse

    Réponse: C. Tell the controller without undue delay

    Article 33(2) GDPR: the processor notifies the controller without undue delay after becoming aware of a breach.

  11. Question 11 sur 18

    An encrypted tablet is stolen. The key was not stolen and there is a backup. What does the EDPB say?
    Voir la réponse

    Réponse: A. Document it; people generally need not be told

    If strong encryption keeps the data unintelligible, telling people is generally not required, but every breach must be documented.

  12. Question 12 sur 18

    An unencrypted laptop with no password, holding the names, addresses and dates of birth of over 100,000 customers, is stolen. What does the EDPB say should happen?
    Voir la réponse

    Réponse: B. Notify the authority and tell the customers

    Without encryption or a password the data is easy to access, and customers could suffer identity fraud. The risk is high, so the authority must be notified and the customers told.

  13. Question 13 sur 18

    The controller does not yet have all the facts about a breach when the 72 hours run out. What should it do?
    Voir la réponse

    Réponse: C. Notify anyway and add details in phases

    The EDPB says information may be given in phases if it is not all available within 72 hours.

  14. Question 14 sur 18

    A controller becomes aware of a breach on Tuesday at 10:00. Where feasible, what is the latest time to notify the authority?
    Voir la réponse

    Réponse: B. Friday 10:00

    72 hours after Tuesday 10:00 is Friday 10:00 (3 days x 24 hours).

  15. Question 15 sur 18

    A company's worldwide annual turnover is €900 million. What is the highest fine in the top band (€20 million or 4%, whichever is higher)?
    Voir la réponse

    Réponse: C. €36 million

    4% of €900 million is €36 million, which is higher than €20 million, so €36 million is the maximum.

  16. Question 16 sur 18

    Read the description. What type of breach is this?

    Marek works at the reception of Linden Physiotherapy. On Monday at 11:20 he meant to send a supplier an order form. By mistake he attached a list of 120 patients with their names, phone numbers and treatment notes, and sent it to orders@supplyhouse.example.com. He noticed the mistake at 11:35.

    Voir la réponse

    Réponse: C. Confidentiality breach

    Personal data was disclosed to someone not authorised to see it. That is a confidentiality breach, even if accidental.

  17. Question 17 sur 18

    Read the description. What should Marek do now?

    Marek works at the reception of Linden Physiotherapy. On Monday at 11:20 he meant to send a supplier an order form. By mistake he attached a list of 120 patients with their names, phone numbers and treatment notes, and sent it to orders@supplyhouse.example.com. He noticed the mistake at 11:35.

    Voir la réponse

    Réponse: A. Tell his manager or data protection contact at once

    Staff should report a possible breach internally straight away so the controller can assess it and meet the 72-hour deadline.

  18. Question 18 sur 18

    Read the description. Why is this breach likely to be treated as more serious?

    Marek works at the reception of Linden Physiotherapy. On Monday at 11:20 he meant to send a supplier an order form. By mistake he attached a list of 120 patients with their names, phone numbers and treatment notes, and sent it to orders@supplyhouse.example.com. He noticed the mistake at 11:35.

    Voir la réponse

    Réponse: C. The treatment notes are health data, a special category

    Treatment notes are data concerning health, a special category, so the risk to patients is higher.