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I hope this question isn't closed for being subjective because I think there is a correct answer somewhere, even if it's a wiki-style explanation answer.
One reason for using open source software for me has always been security. Being safe in the knowledge that the important programs I'm running are being looked at by thousands of people every day so that security issues can be fixed. I don't really understand the bug, but it's apparently quite bad and has been around for about 2 years. Does this mean Ubuntu isn't as secure as I have been led to believe? That really there's a chance there are security flaws in Ubuntu that are compromising me now? Or is there an explanation for why this happened despite it being open source, but we don't need to worry about Ubuntu. Is Ubuntu just as unsafe as Windows (or maybe safer but not by much?)