Questions tagged [3g]

Use this tag for questions involving the use of third generation (3G) wireless mobile technology.

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Does a SIM Card provide the cellular radio with temporary keys?

I understand that a SIM card is essentially a self contained computer, on which an algorithm is run that will receive a RAND from a network operator, and use it compute temporary keys (CK and IK) ...
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1answer
98 views

Can a form I filled in online using 3G be traced to my phone? [closed]

My friend is trying to ascertain if a form completed online was done so by her ex. If he completed an online form on a website on his phone (contract phone) using 3G connection, could that form be ...
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General mobile broadband security questions [closed]

I'm thinking about whether or not to get a mobile(3G/4G) broadband router, but I need to know a few things about them. How secure are they? If an attacker were to put up a femtocell/rogue cell tower ...
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1answer
168 views

How serious is the Borgaonkar/Hirschi attack on 3/4g cellular security

At Blackhat yesterday Ravishankar Borgaonkar and Lucca Hirschi revealed an attack on the security protocols underlying current 3/4g networks. Parts of the tech press are have indicated this could ...
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2answers
1k views

IMSI catcher vs MiTM attack

On reading about IMSI catchers, it is almost always mentioned together with MITM attacks, i.e. as if IMSI catchers are same as MITM. But from my understanding, IMSI catchers and MITM are not the same ...
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1answer
564 views

Privacy implications of Intel CPU's secret 3G communication (Anti Theft 3.0)

From what I understand pretty much all Intel CPUs produced since Sandy-Bridge have "secret" 3G capabilities in their IME (Intel Management Engine). This IME has full access to the memory bus and ...
3
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1answer
152 views

911 Authentication and Encryption

When I talk over 3G without a SIM, for which the only example I see is 911 emergency calling, is any encryption used? In other words, can a 3G eavesdropper understand any content of my 911 call? I ...
3
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1answer
115 views

As a mobile carrier, how do you defend against mobile attacks like Stingrays?

I would like to know what ways there are (if any) to defend against Stingrays and similar interception if you are a mobile carrier and have full control of the base stations and SIM cards? Can a SIM ...
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0answers
175 views

Does old SIM-cards have the same security as new one?

As I am using an old (10-15 years) SIM-card, I was asking myself if the hardware and software on the sim-card is equivalent to the newer sim-cards. Are the old-sim-cards (10-15years) the same as the ...
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3answers
456 views

Security of 3G network

If I'm using a 3G modem on USB, is that secured or easily hackable? Is there some form of encryption built into it?
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1answer
162 views

How can I know if any cell phones other than a given set are turned on in the nearby area?

I am searching for a solution to identify phones simply by the signals it emits. Imagine a signal receiver in a room, then I want to know which people are using phones nearby. I don't care what they ...
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3answers
1k views

3G, 4G How does my provider know i am using facebook?

I have a mobile subscription with 1 GB of data every month. But my provider has a promotion where facebook and twitter traffic is free, so I can use facebook and twitter and not use up my 1 gb of data....
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1answer
6k views

Cellular encryption algorithms currently in use globally

I have been doing research on the available encryption algorithms used by commercial mobile providers worldwide, and would like to know if the following list is complete: Algorithms for voice ...
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3answers
6k views

How secure is HTTP / HTTPS over 3G?

Suppose I log into a website, such as Twitter, from a 3G-enabled smartphone or similar device. How secure is this from interception? Can someone steal my password or login? What if I use HTTPS? What ...