Why Do You Need a Firewall?
High-speed Internet connectivity has become ubiquitous. Most computer users now have high-speed access at home, at work, and even on the go through mobile devices. Often, these broadband connections are always-on connections. This means computers and networks are online all the time—and exposed to attacks. A drawbridge is easy to cross if it is always down. When a system is always connected, it can be the focus of a concerted attempt to discover its vulnerabilities and breach its security.
How likely is it that a computer will be discovered and attacked over the Internet? It is almost guaranteed. Most systems are detected, scanned, and probed within minutes of obtaining a public IP address. It is technical suicide ...
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