CIS ISO NIST CSF Essentials SOC

Automatic login is off

How to disable Automatic login

GNOME (Ubuntu, Fedora, etc.)

Open Settings
Navigate to Users
Click on your user account
Turn off Automatic Login

KDE Plasma

Open System Settings
Go to Startup and Shutdown → Login Screen (SDDM)
In the Advanced tab, ensure Automatically log in is set to None

XFCE

Open Settings Manager
Click on Users and Groups
Ensure automatic login is disabled for all user accounts

Command Line Method

For systems using GDM (GNOME Display Manager):

sudo nano /etc/gdm3/custom.conf

Ensure these lines are commented out or removed:

# AutomaticLoginEnable=true
# AutomaticLogin=username

For systems using LightDM:

sudo nano /etc/lightdm/lightdm.conf

Ensure these lines are commented out:

# autologin-user=
# autologin-user-timeout=0

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