Mac
Security defaults to set
- Enable FileVault
- Enable Firewall
- Enable Firmware Password
- Turn off unneeded sharing services in System Preferences→Sharing
- Rename machine in System Preferences→Sharing
Security Software
- Malwarebytes for Mac
- Little Snitch
- Little Flocker
- KnockKnock
- Webroot
- TaskExplorer
- Blockblock
Useful Mac Software
- ShiftIt (Window management)
- Adium (Multi-account chat)
- Flux (Color temperature changer)
- iTerm2 (Terminal replacement)
- DiskInventoryX (Like WinDirStat)
- GIMP (GNU Image ManiPulator - like Photoshop)
- LibreOffice (More MS Office-like than built-in Mac Office suite)
- Textwrangler (IDE/Texteditor)
- Homebrew (CLI package installer/manager)
- Brew Cask (CLI app installer/manager)
- Keka (zip/7zip/etc) utility)