This is a website introducing codes and ciphers in WW II by Tony Sale. Given this specific war context, is there really a guideline of what an action is ethical and what is not in terms of cryptoanalysis? Would an action be ethical whenever the majority's well-being is satisfied, or there's a line that should not be crossed?

Getty In an age of surveillance anxiety, the notion of leaving your Wi-Fi network open and unprotected seems dangerously naive. But one group of activists says it can help you open up your wireless internet and not only maintain your privacy, but actually increase it in the process. At the Hackers on Planet Earth conference…