its really easy to make this mistake when you're brand new and have not studied any of it. Hopefully this can make people aware of some of the risks.
I hope so. Every serious wallet software advises to double check the checksum of the file being downloaded. You should cross check from trustworthy sources that you are using a legit copy. Every bitcoin guide that points you to download a wallet warns the reader about this, this advice was clearly neglected.
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