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Old 14. Oct 2014, 04:58 PM   #1 (permalink)
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Cool Paranoia

So I've had credit card charges that weren't mine, malicious hacking (somebody out here doesn't like me) of course, there is no law enforcement help so I have to protect myself.

So two questions: If I go to another location I believe the IP changes if it is public but what about a different home.?

Can a hacker set up a connection on a computer and access it without an Internet connection and no power (except battery) on the computer.

Paranoid Hugh

PS Of course, I''ll suspect the answer is from my hacker :-)
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Old 14. Oct 2014, 06:57 PM   #2 (permalink)
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You don't explain what happened with your credit card or how you are sure that you were hacked. Many problems with credit cards are not related to the Internet or hackers. Anyone who gets to hold your card can scan the magnetic stripe in a second or two. One way this often happens is if you hand over your card in a restaurant. They can also read the security code which is not available to hackers.

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Originally Posted by Hugheen View Post
If I go to another location I believe the IP changes if it is public but what about a different home.?
The IP address has to be different for different Internet connections which includes different homes.

The term "public" has two different uses which you might be confusing:
  • IP addresses on the Internet are by definition public because anyone can access them
  • public is also used to describe Internet access at cafes and other public places. This is more to do with the security required which should be higher when you use such a public network where you can never be sure about the level of safety. When you use your home network you don't need as high a level of security because you control access to it.

Quote:
Originally Posted by Hugheen View Post
Can a hacker set up a connection on a computer and access it without an Internet connection and no power (except battery) on the computer.
If there is no Internet connection then there can't be any communication from a hacker.

There is a situation where it can look like you are being hacked. if your computer is on a local network then another computer on that LAN can communicate with it. That means that malware infecting another computer on a local network can do similar things to what a hacker would do over the Internet connection.

If there is an local network connection (which is the way most people access the Internet) then your computer can also be configured to wake-up on that LAN even if it is turned off.
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