The countermeasures

Countermeasures are designed to protect a network or system from an attack by either preventing the attack from happening or detecting when it has happened. This enables security professionals to take corrective action to ensure their systems remain secure. Countermeasures must be taken seriously because once an attacker has enumerated a network, penetrating the system becomes significantly easier.

Defaults and NetBIOS

When it comes to defaults, we're talking about default settings – whether it's the default settings for NetBIOS, your wireless access point, or SQL database defaults. The rule is: do not create a security hole by leaving default username and passwords or default settings in place. Change them. For example, I get into my servers via remote desktop all the time, but I don't use the default ports. I've changed them up. Likewise, be aware of your ports. Of course, you can't change some of them. I can't change...