CallerIP monitors activity on open ports on your system, which are often not protected by firewalls, so you can identify hackers before your system or confidential information is compromised. Worldwide WHOIS lookups show domain and network contact information for IP addresses, Web servers and e-mail servers including abuse-reporting information. Connections to your system are provided in real-time, including the connection time, remote and local IP address, country of origin, remote and local ports being accessed.

For Windows XP systems, the process ID is also identified, which helps you determine if the process is legitimate. A simple click on an IP address shows you where the connection originates on a global map along with domain and network registration information. CallerIP scans all the ports on your system and alerts you to any backdoors, HTTP Web, FTP, or SMTP servers running, which could provide unauthorized access. Version 1.1a includes updated Whois information, network name reporting, and country code reporting for connection history.