Messenger Comparison — Honest Trade-offs — Quiz

1.

Which of the following statements about Telegram is accurate?

2.

What is the most significant privacy limitation of WhatsApp, given that its E2EE is technically genuine?

3.

Which scenario describes how iMessage's E2EE can be bypassed through normal user behaviour?

4.

When Signal received a grand jury subpoena in 2016, what was it able to provide to the requesting authorities?

5.

What does the formal security analysis by Cohn-Gordon et al. (2020) verify about the Signal Protocol?

6.

Explain why using WhatsApp for 'private' conversations involves a different privacy calculation than using Signal, even though WhatsApp uses the Signal Protocol for message encryption.

7.

Describe the backup vulnerability that affects both WhatsApp and iMessage for most users, and explain what each platform offers as a solution.

8.

A colleague says: 'Telegram is the most secure messaging app because it's the one that doesn't cooperate with governments.' Identify two factual inaccuracies or misleading elements in this claim.