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Saturday, September 5, 2015

Bitcoin and Cryptocurrency Technologies - Quiz 2 Problem 3

What can a malicious node do? (check all that apply)

Prevent a valid transaction from getting any confirmations (No, some other nodes will confirm it)
Ignore the longest valid branch rule when proposing a new block (Yes, a malicious node can do that)
Create valid transactions originating from someone else’s address (No, the malicious node will not be able to forge the signature)

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