Hello guys I wanted to ask a few questions regarding apps in the Mac App Store that have been cracked for free versions. This week I let my friend borrow my mac to do a research paper for school. He gave it back to me today with many new software in a way of his gratitude. I asked him how he afforded these apps and he said he downloaded them from the youtube videos linking him to media fire websites to download them. I now have Final Cut Pro, 1Password, and a few others installed on my MacBook Pro now. - Will these cause harm to my MacBook by having sneaky viruses hiding within these apps when they were installed by my friend? - If I decide to end up keeping them or deleting them will I still have the viruses, if there are any? - Also is it possible for the 1Password app to monitor my passwords if I end up keeping it? I do not like the use of piracy when it comes to applications and I want to delete these apps but as they are already on my Mac I honestly can say I wouldn't mind keeping them. I am just afraid that something bad will happen to my Mac if I kept or deleted these applications. My friend told me to keep these apps as they are already on my Mac and nothing bad will happen from keeping or deleting them. Many people say Macs do and don't have viruses so it always makes the true answer confusing. I am running the latest version of Mac OS X 10.9.5 and am running on the late 2013 model. If you read all of this, I honestly appreciate it, any feedback or advise is welcomed and GREATLY appreciated!