![]() The entire Internet is scanned by malicious software so frequently that an old OS install without patches will be compromised in minutes or in seconds. Every publicly addressable host on the Internet will be attacked regardless of who knows it. Knowing, or not knowing, an IPv4 address is nothing special. Microsoft Security Essentials MSE is a great choice for Windows, because it's free, unintrusive and not much of a performance hog. ![]() Httpd on your machine, keep those up to date and configure their security appropriately. These are critical! Office, Adobe PDF, etc. Both of these will prevent arbitrary incoming traffic from hitting your computer. Mozilla firefox Windows Firewall or are behind a NAT router, you're probably safe. If a criminal knows the address of a bank, what can they do? It completely depends on what security is in place. ![]() ![]() ![]() Think of your IP address as the same kinda thing as a real address. ![]()
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