Remove sophos keychain
sudo rm /Library/"Sophos Anti-Virus"/SophosSecure.keychain
Disable sophos
sudo defaults write /Library/Preferences/com.sophos.sav TamperProtectionEnabled -bool false
Remove the app
sudo mv com.sophos.sav.plist com.sophos.sav.plist.old
cd /Library/Application\ Support/Sophos/cloud/Installer.app/Contents/MacOS/tools/
cd /Library/Application\ Support/Sophos/saas/Installer.app/Contents/MacOS/tools
sudo rm -R /Library/Sophos\ Anti-Virus/
sudo rm -R /Library/Preferences/com.sophos.*
sudo ./InstallationDeployer --remove
docs: