Hello,
CCleaner Cloud Pro users can select in the Account Settings to use the two-factor authentication.
When I log into CCleaner Cloud I receive an SMS with the Access Code.
This Access Code had 8 digits.
I suggest that you show this code in two blocks of 4 digits:
Instead 12345678 show 1234 5678 in the SMS.
This is easier to read for the user.
Of cause you must ignore the blank if the user enters it in the login dialog (so he user can enter 1234 5678).
I work as an Ergonomic Engineer (software ergonomics according to DIN-EN-ISO 9241) and Usability Engineer.
This suggestion increases the usability.
Greetings
OLLI