"Now, this seems pretty wishy-washy. If you build code like this, you know very well what you are doing. The fact it was built as a 'sleeper' shows months-long careful planning."
It's a valid point. Not everyone who was infected with this program will see the message on how to reverse its effects, nor will everyone who paid a ransom in Bitcoins be aware that it is apparently possible to be refunded. The damage has already been done.
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