I have a mid 2012 MBP. Came with Mountain Lion, upgraded to Mavericks in 2013 and never touched the OS X again. Long story short: I need El Capitan to run some work apps and it can't be newer because an essential piece of hardware won't work on Sierra or later. I installed High Sierra yesterday to confirm and because I didn't install El Capitan at the time, I can't do it now that Sierra/High Sierra are out. Is there a safe source here to download the installer (torrent)?
Thanks in advance.