Network Security Development
4 Shadow Security App for Mac OS X
4Shadow
4Shadow is a lightweight network intrusion detection system (IDS) for OSX 10.5+.
Coming Soon to the Mac App Store
Current Detections:
- Successful and Failed Remote logins (SSH).
- Successful and Failed local authentication attempts (installers, local configuration changes).
- Port scanning
- Man-in-the-Middle Attacks (ARP Poisoning)

