Is there a "Log in" history for myHub??

@LSAirport, yes there is a Log On report you can access in myHub:

Log onto myHub with Corporate Control credentials and go to Reports > Web Reports > select a location > Next > Log On History (under Management).

Also, the August myHub update added an IP restriction option for Administrators to control where users can use SiteLink. For more info on that, read our news release.

Hope that helps!