Mac Pro 3,1 user here: In the midst of a drunken internet argument (yes I am ashamed ), I clicked on a link I shouldn't have which downloaded a pdf file. The person I was arguing with then claimed that he had penetrated my computer with a reverse shell made with metasploits software. Well I got what I deserved for arguing with a stranger on the internet. Maybe he is lying or maybe my system was compromised but either way I'd like to take a few precautions. At the time, I was using windows 7 in bootcamp. I have already removed the bootcamp partition (I don't keep anything requiring backup on it besides a few pictures i put on a usb stick). From my minimal understanding, a reinstall of windows would remove any rootkits and malicious software generally. There is a chance something could remain in a bios, but Macs have Efi so that shouldn't be an issue. The only thing that has bios on it is my graphics card. I use a SSD harddrive (and have a second HDD drive HFS+ formated which holds mp3 files) and at this point the only other thing I can think of doing to ensure my mac/pc are secure except doing a clean reinstall of os x mavericks using a USB bootdisk. Is a clean OS X install even necessary or am I being overly cautious? Are there other steps i should take (checking my router for example?). If I do a clean re-instal of OS X, should I most likely be secure? Thanks.