Alice encrypts her data using her public key PK and stores the encrypted data in the cloud. Which of the following attack scenarios will compromise the privacy of her data?

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• ANone of these scenarios compromise the privacy of Alice's data
• BAgent Andrew subpoenas Alice, forcing her to reveal her private key. However, the cloud server
• CHacker Harry breaks into the cloud server and steals the encrypted data
• DAlice also stores her private key in the cloud, and Harry breaks into the cloud server as before

• A
  11% (5)
• B
  4% (2)
• C
  7% (3)
• D
  78% (35)

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