Mobile Security » Uncategorized https://blog.m-sec.net When security is not enough Tue, 13 Nov 2012 20:58:39 +0000 en-US hourly 1 http://wordpress.org/?v=3.4.2 Communication cable in the world https://blog.m-sec.net/2011/communication-cable-in-the-world/ https://blog.m-sec.net/2011/communication-cable-in-the-world/#comments Sun, 16 Oct 2011 06:13:22 +0000 m-sec.net http://blog.m-sec.net/?p=77 A few days ago I’ve discovered a website that provides a full map of the submarine cable that connects different countries. It has very good information: you can find the cable’s name, when it was fully operational, owner, landing points and sometimes a link. I was courious to see if there is some sea cable that connects Romania and it is:

Sea cable Romania

KAFOS (Karadeniz Fiber Optik Sistemi – Black Sea Fibre Optic System) is a submarine telecommunications cable system in the Black Sea.

Cable Length: 538 km
Owners: Turk Telekom, Vivacom, Romtelecom, KPN, Telecom Italia Sparkle, Slovak Telekom, Rostelecom, BT

Landing Points

Igneada, Turkey
Istanbul, Turkey
Mangalia, Romania
Varna, Bulgaria
It has a transmission capacity of 622 Mbit/s, started operation on 13 June 1997.

If you want to see how the countries are connected via sea/ocean access http://www.submarinecablemap.com

Enjoy!

Cable TAT-14

Landing Points

]]> https://blog.m-sec.net/2011/communication-cable-in-the-world/feed/ 1 GPRS is broken https://blog.m-sec.net/2011/gprs-is-broken/ https://blog.m-sec.net/2011/gprs-is-broken/#comments Fri, 12 Aug 2011 19:14:25 +0000 m-sec.net http://blog.m-sec.net/?p=43 Researcher Karsten Nohl has recently presented at Chaos Communication Camp 2011 a way of intercepting GPRS traffic. What that means is that now you can read the traffic that your neighbor is doing on his phone, at least if he uses GPRS/EDGE.

 

 

 

 

 

Karsten Nohl - Gprs Intercept

Along with Luca Melette, Karsten was able to decrypt the GPRS data by using a modified phone, loaded with OsmocomBB baseband software. What’s interesting is that, during the research, they discovered some operators that do not use encryption at all because it would be easier to block content like VoIP, Skype and so on.
If you want to read the slides, here they are: click
My advice: set you phone to use 3G as a preferred network, not only because of the GPRS issue, but due to other GSM security issues.

UPDATE: See the videos here: CCC 2011 videos

]]> https://blog.m-sec.net/2011/gprs-is-broken/feed/ 1 My first post https://blog.m-sec.net/2011/my-first-post-2/ https://blog.m-sec.net/2011/my-first-post-2/#comments Wed, 29 Jun 2011 14:20:52 +0000 m-sec.net http://blog.m-sec.net/?p=7 This is my first post.

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