I'm not a fan of the hot corner method of locking screen so here are 2 other ways to achieve screen lockage on MacOS / OSX:
Keychain Access: Toolbar Icon So You Can Click To Lock Screen
- CMD-space: Launch "Keychain Access"
- -> Preferences
- CHECK: "Show keychain status in menu bar"
Then you can lock screen by clicking the padlock on the Menu Bar and selecting "Lock Screen":
Automator and Keyboard Shortcut
Automator Service: Lock Screen via Applescript
First we have to bind an applescript to a service that starts the screensaver:
- CMD-space: Launch "Automator"
- Change "Service recieves" dropdown to "no input"
- use search bar to search for "run applescript"
- Doubleclick "Run Applescript" to add it to the service.
- Copy/Paste this code into the Applescript box replacing any existing text:
- Save as: "Lock Screen"
Next we bind a key to the new service.
- CMD-space: Launch "keyboard" (or System Preferences -> Keyboard)
- Shortcuts (top bar) -> Services (left pane) -> Lock Screen (right pane - scroll to find it)
- Add Shortcut (I added CTRL-CMD-K in this example)