A telephone, or phone, is a telecommunications device that permits two or more users to conduct a conversation when they are not in the same vicinity of each other to be heard directly.

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Protecting cellphones from USB attacks (a.k.a. Juice Jacking)

We have several smartphone with encrypted data on them (BES, iPhone, Android) and want to prevent an unauthorized person from downloading information from the device via USB. The visual assumption ...
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5answers
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How to trace a (mobile) phone?

Even since growing up, I've watched films in which the "bad guy" is repeatedly tracked down when they call the police or FBI or police force de jour. They always have "about 30 seconds". Regardless ...
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6answers
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How hard is it to intercept SMS (two-factor authentication)?

A lot of two-factor authentication mechanisms use SMS to deliver single-use passphrase to the user. So how secure is it? Is it hard to intercept the SMS message containing the passphrase? Do mobile ...
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2answers
2k views

How can I spoof a phone call and make it appear to come from another phone?

I'm performing a penetration test against a company. Part of my social engineering procedure is to contact the IT department and try to convince them to that I'm an employee in the company and get ...
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5answers
10k views

What is preventing us from sniffing the mobile phone communcation?

I'm learning wireless penetration testing. It really is amazing. But it made me wonder, what about mobile phones? They are also means of wireless communication. So, our entire voice must be in the air ...
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2answers
10k views

Is it possible to make a phone call appear to come from another phone, even to the network provider?

Quick Question Is it possible that I could call a mobile number, but have the call forwarded through another number active on a different phone that someone else has? I have had unlimited access to ...
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2answers
23k views

Can Android phone running without SIM card be tracked (localized) by police?

I am running an Android phone without a SIM card. I am using it for web surfing. Can the police localize my phone using the cell towers (BTS)? In other words, I know Android phones emit radiations ...
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9answers
6k views

Do secure phone lines exist?

I could be out of context here about security, but , I would like to know if phone lines or phone calls over VOIP could be made secure . I know that Skype and other VOIP service providers have to ...
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3answers
323 views

Android security without updates

I have an android phone which, like many others, has quickly become unsupported and is not receiving any updates. At the same time there are publicly available exploits for privilege-escalation ...
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2answers
479 views

Mobile phone security eavesdropping based on data transfer

is there an easy way for particular governmental organizations (especially in countries where freedom of speech is a problem) have some technology where they can easily eavesdrop on cellphone internet ...
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2answers
686 views

How can I protect my phone voicemail from being hacked?

With the News of The World Phone Hacking scandal spreading globally amidst allegations that as well as celebrities, victims of September 11 and other major events in the news have had their phone ...
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1answer
201 views

Can malicious phone software mount a MITM attack on a phone call?

Suppose my smartphone has been compromised and there is malicious software running on it. You can assume that the malicious software has broken out of any sandboxes and is running as root. If I'm on ...