✔ Remember username on this device for now.
Doesn't work if browsing in 'Private' mode.
IMPORTANT  Not recommended on any shared or public devices, only select this on a trusted device!
NOTE  Your password is still required each time to ensure authorised account access.

ALERT  Do not select 'Stay signed in' on any shared or public devices, only on a trusted device!
IMPORTANT  You can remove any 'Stay signed in' devices at any time remotely from any device you are signed in, from your account menu under 'Devices'.
NOTE  Instead of a password, a secure session cookie is stored on this device permitting instant access for up to 90 days of last sign in, or until cookies are cleared any earlier.