The discussion hereby would involve 3 essential methods which would help you inevitably to resolve your issue. But here we would confine our excursus on how to bypass the Mac OS password to gain access into the system. Generally, besides login, Mac password is used for various other reasons, such as, during installing softwares, rendering serious changes in the system settings, or while deleting system files. So if you have forgotten your password on iMac or Macbook, it might be a bit difficult way ahead for you to access the system again if you don’t have the knowledge of the convoluted operating system. The protection mechanism is akin to all other operating systems, but the registry files accountable for creating the security barriers are a bit different, rather crude to bypass. Mac OS is one of the most secured operating system provided by Apple.