If you store source code on your personal laptop[1] you have to enable encryption. That should be like 'security 101'. Especially if you go to tech conferences where people who might steal your laptop actually know what the "~/.aws/config" is and what "~/Work/<company-source>" might worth. I would be very skeptical of ppl running around with laptops containing proprietary source code without encryption on.

If you own a mac:

  * Enable FileVault
  * Enable 'require password immediately'
  * Choose a password with 8 or more chars
  * Never leave the keyboard unattended

You can lock your mac with: "open -a ScreenSaverEngine" or even better:

echo 'alias klock="open -a ScreenSaverEngine"' >> ~/.profile'

[1] If this is a work laptop then the company should have some kind of security policy and encrypting everything is where everyone would/should begin.