“捕食者"最擅长的是改变您登录计算机的方式。首先，它使您能够使用USB密钥锁定/解锁计算机，而不必每次都输入密码。显然，这样做有其优点和缺点。
从正面来看，它使您无需输入密码即可解锁计算机，因此用户无需在密码强度和易用性之间进行折衷。另一方面，如果有人握住您的USB驱动器，则只需将其插入即可访问您的系统。
You can download the Predator USB security software here. Once installed you need to run Predator with administrative privileges. It asks you to configure a USB drive as a key on the first run. Plug in a USB thumb drive, create a password and then create the USB key. With that done you are now ready to use the USB drive as the key to lock/unlock your computer. You can still use the USB drive to store any files as you would normally do. From now on if you want to lock the computer have a look at the Predator icon in the system tray, wait if it is red and if it is not, you can remove the USB key. The computer will be locked after a fixed interval of time that can be specified in Predator settings.
Talking of settings, lets have a look on the things you can configure inside Predator. First off as I mentioned above, you can customize the time interval between your pulling out the USB drive and the moment your computer gets locked. You can control how the screen looks like when the computer is locked. You can turn down the screen’s brightness all the way to 0, hide desktop icons and minimize all windows to show through the wallpaper when the computer is locked. You can also specify if you are using a multi monitor setup. You can set it to autostart with Windows and enable or disable pause. If pause is enabled you can use the system tray icon to prevent locking your computer when you remove the USB drive. Very handy, if you just need transfer a file or two with your USB key.
The thing I like most about the Predator USB security software is that the keyboard and mouse are disabled when computer is locked. So it is not easy to figure out how to unlock the computer. You can of course unlock the computer by simply plugging in the USB drive that you configured to work as a key. That being said, you can still unlock the computer using the password you set inside preferences dialog. Predator displays a password prompt if anyone hits 3 keys on the keyboard. The user then has 10 seconds to insert the USB key or enter the correct password after which the computer starts beeping, if there have been 3 unsuccessful attempts, an alarm is set off to let you know.
除了上述所有功能，Predator还会记录每个事件，以便您知道有人是否试图进入您的计算机。总体而言，Predator提供了不错的功能集。尽管它没有添加任何其他的安全层，但它掩盖了预期的界面，禁用了鼠标/键盘，使未经授权访问计算机变得更加困难。 Predator可以在Windows XP到7上运行。
让我们知道您对此类解决方案的看法以及您希望如何保护计算机的安全吗？
