Are calls made on mobiles encrypted? I was reading that calls using Internet telephone are secure because the packets of data send over the Internet are encrypted. Are there ways to prevent mobile calls being intercepted? I once read something about the old analogue mobile phones being vulneable but that security improved with GSM.
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I have no sources to back it up other than what I've heard but I didn't think mobile calls were encrypted at all..... I'd assumed having the right equipment to decode digital signals at the right TX and RX frequencies you could listen in happily....assuming you knew which channel/freq and the time of your target call.
Same goes for VOIP by default I didn't think they were encrypted anyone could perform a man in the middle attack and intercept the packets and do with as they wish.
As for protecting yourself Id assume there are products out there that do encrypt over the GSM network but at a price....as for VOIP.... you could establish a SSH tunnel or VPN and tunnel the packets over that......
Having voices in your head is normal. Listening to them, common. Arguing, acceptable. However, when you lose the argument, you're in trouble.
Thanks for the link to the website. I shall have a look.
Since writing my message I have read an article about the police in Germany not being able to intercept Skype calls because the data packets are encrypted. They are apparently looking at ways of getting at interception before the voice is converted into a data packet.
I know that the old analogue mobile phones were insecure. Frequencies were shared (as they have to be in mobile technology) and radio transmission was similar to FM radio. Others could sometimes be on the same frequency and listen in. I believe a few Members of Parliament in the U.K. got were the victims of eavesdroppers.
Not planning anything sinister. I have to reseach mobile phone technology for a course I am doing.
If you lived in the U.K. you would need to be worried about snooping. The government, local authorites and all manner of agencies are at it. Soon Gordon Brown will want people to have cameras shoved up parts of their anatomy that may make sitting down impossible to monitor if they are eating the right food.
I use mail server in Dublin and encrypted connection. Won't stop determined government agency form snooping but would make it more difficult.