As per the documentation, 'Status' field on the sObject LoginHistory is a string.
The different values I have come across for this field so far are:
1 Success
2 Failed: Computer activation required
3 Failed: API security token required
4 Failed: Mobile License Required
5 Password Lockout
6 User is Inactive
7 Invalid Password
Are there any others? Is there a link where we can see the most up to date values?
There is no documentation on all of the available values (please feel free to edit this if there is indeed such documentation).
This community wiki is free for editing by anyone that has observed different values.
The known values are:
Success
Failed: Computer activation required
Failed: API security token required
Failed: Mobile License Required
Password Lockout
User is Inactive
Invalid Password
User Is Frozen