All I had is stolen.
The system logs show the hacker could change or disable authentication.
What we could do when Minergate let them!!!!!!

2017-09-03 07:52:43   Transfer completed   Desktop   Chrome 60.0.3112.113   Windows 10   46.188.107.253   Russian Federation
2017-09-03 07:52:24   2-step authorization enabled   Desktop   Chrome 60.0.3112.113   Windows 10   46.188.107.253   Russian Federation
2017-09-03 07:52:02   Successful Sign-in   Desktop   Chrome 60.0.3112.113   Windows 10   46.188.107.253   Russian Federation
2017-09-03 07:54:26   Withdrawal completed   Desktop   Chrome 60.0.3112.113   Windows 10   46.188.107.253   Russian Federation
2017-09-03 07:57:27   2-step authorization disabled   Desktop   Chrome 60.0.3112.113   Windows 10   46.188.107.253   Russian Federation
2017-09-03 07:57:46   Successful Sign-in   Desktop   Chrome 60.0.3112.113   Windows 10   46.188.107.253   Russian Federation

as you see-----> 2-step authorization could be enable or disable by them