Ironic that the instruction at the bottom of this page is 'sign up or login'.I'm here because i'm torn between log in to and log into and looking for clarification.A login (also log in, log on, signon, sign on, sign in) is the process of receiving access to a computer system by identification of the user in order to obtain credentials to permit access.A login is a unix term, whereas a logon sounds like it comes from some huge corporate behemoth like ibm or microsoft.Also, untechnical people now use the word in a way unrelated to authentication,.