Dialer Zapper is a useful utility that prevents software from dialing out without your permission. There are many cases where you find out that your computer phoned a number and stayed online for hours, leaving you with a huge bill at the end of the month.
This can happen either if you are using a dial-up connection to the Internet or if malicious software uses your phone line like dialers or spyware.
Before you is the two most common cases where your computer dials out without your permission:
# You disconnected your dialup connection to the internet but you left the browser open. The site on your browser refreshed itself and caused the browser to auto dial to your ISP. You wake up the next morning and find out that the computer was online all night.
# A malicious software was installed on your computer (while you were surfing the web); When your computer is ideal (no one is using it), it dials to a special phone number and stay connected - leaving you with a huge phone number at the end of the month.
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