I use a Mac at work. Attached to it is an external hard drive (personal) that I would like to either encrypt or either make invisible to the Mac. I have ubuntu on my personal laptop. Could I make it ext4 and unviewable by Mac or PC or something along those lines so that nobody just goes through my (personal) stuff by just logging in and going on the desktop? I'm looking for something that will still allow me to access them fairly easily such as file permissions or something. I don't wanna put it into a zip file or a password protected rar file. I know nothing is 100% but I at least want a layer of security. Thanks
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