It is a "one-way" firewall. It makes a fair effort to keep people on the outside from getting in, but it cannot block outbound connections .
It excels at alerting users when a program attempts to make an outbound connection, which is crucial for detecting spyware and Trojan horses. Best Firewall For Xp
Better than nothing, but insufficient for a machine connected to the internet in 2026. Why You Need a Strong Firewall on XP It is a "one-way" firewall
Like ZoneAlarm, it provides total network security. Best Firewall For Xp
The built-in " Windows Firewall " is a significant step up from the original SP1 offering, but it has flaws.
The system is particularly susceptible to buffer overflows and malware.