Saturday, April 30, 2011

Y! Alert: Telecom-Funda

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Does The Verizon Thunderbolt Have A SIM Card?
The Verizon Thunderbolt manufactured by HTC is one of the early CDMA/LTE mobile devices on the market. An interesting question in this regard is whether it has a SIM card or not. Remember, CDMA devices usually do not have a SIM card. But LTE is a 3GPP technology just like GSM and UMTS where SIM cards are part of every device. So what about the Thunderbolt which includes both technology branches!? I would have speculated it doesn't have one. Why bother, Verizon has its own LTE band so the device will only run on Verizon's network!? But strangely enough, the Thunderbolt does have a SIM card as shown in this Youtube video . While showing the SIM card the reviewer mentions that CDMA service is still available when the SIM card is removed. In other words, the SIM is only used for the LTE part of the device. Very interesting indeed.
 

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Friday, April 29, 2011

Y! Alert: Telecom-Funda

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Y! Alert: Telecom-Funda

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Service Layer Optimization element to Improve Utilisation of Network Capacity Top
 
Sidera Switches Low-Latency Service Top
 
Moto Ships 250K Xooms But Waits on LTE Top
 
TW Cable Flirts With Full IP Video Simulcast Top
 
Analyst Fingers NSN Server for Verizon's 4G Fail Top
 
Fraudulent SSL Certificates And How To Protect Yourself (A Bit) Top
The Comodo SSL hack last month has shown quite dramatically that SSL is prone to man-in-the-middle attack if you live or use SSL protected websites and services in places that make it easy for attackers to spy-on and divert IP packets. The way the attack works is that the data traffic to an SSL protected site is redirected to another server that then poses as the original server by sending a fraudulent SSL certificate. Out of the box, web browsers today don't indicate this to the user if the fraudulent SSL certificate was issued by a trusted but compromised certificate authority. For the technical details, see the excellent article on Ars Technica . So is there anything that can be done to protect yourself against it? Two things come to mind: First, whenever in a non trusted part of the Internet, a VPN tunnel can be established to an endpoint that lies somewhere where a man-in-the-middle has no access to. Many VPNs use certificates, too but since they don't rely on certificate authorities, man-in-the-middle attacks with bogous certificates won't work. The only solution for an attacker is to block VPNs from being established, and that the user notices immediately. The second way to detect against potential fraudulent SSL certificates is to be informed if a different certificate is presented to the web browser for a website than at a previous visit to the same site. There are valid reasons for this such as the old certificate being close to its expiry date but such certificate changes are very rate. The issue here is that web browsers do not show such a certificate change. For Firefox, however, there are add-ons that do just this. An easy and straight forward one is Certificate Patrol . The problem with both solutions is that the ordinary user without a technical background is unlikely to use either one. On mobile platforms, using a VPN is not quite as straight forward, as keep-alive packets will drain the battery very quickly. Let's at least hope Firefox mobile and other mobile browsers get a similar add-on soon. However, that still leaves data transfers vulnerable from other apps such as email programs that use SSL to potect SMTP, POP3 and IMAP connections as well as apps that use HTTPS for data exchange. I agree with Ars Technica, the security architecture of the Internet needs a serious overhaul.
 
Huawei vs. ZTE – FIGHT!! Top
 
Ericsson's India Revival Top
 
Level 3 Claims Unique Backhaul Strategy Top
 
Verizon Says That LTE Is Back Top
 

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Thursday, April 28, 2011

Y! Alert: Telecom-Funda

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Y! Alert: Telecom-Funda

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The latest from Telecom-Funda

Analyst Fingers NSN Server for Verizon's 4G Fail Top
 
Fraudulent SSL Certificates And How To Protect Yourself (A Bit) Top
The Comodo SSL hack last month has shown quite dramatically that SSL is prone to man-in-the-middle attack if you live or use SSL protected websites and services in places that make it easy for attackers to spy-on and divert IP packets. The way the attack works is that the data traffic to an SSL protected site is redirected to another server that then poses as the original server by sending a fraudulent SSL certificate. Out of the box, web browsers today don't indicate this to the user if the fraudulent SSL certificate was issued by a trusted but compromised certificate authority. For the technical details, see the excellent article on Ars Technica . So is there anything that can be done to protect yourself against it? Two things come to mind: First, whenever in a non trusted part of the Internet, a VPN tunnel can be established to an endpoint that lies somewhere where a man-in-the-middle has no access to. Many VPNs use certificates, too but since they don't rely on certificate authorities, man-in-the-middle attacks with bogous certificates won't work. The only solution for an attacker is to block VPNs from being established, and that the user notices immediately. The second way to detect against potential fraudulent SSL certificates is to be informed if a different certificate is presented to the web browser for a website than at a previous visit to the same site. There are valid reasons for this such as the old certificate being close to its expiry date but such certificate changes are very rate. The issue here is that web browsers do not show such a certificate change. For Firefox, however, there are add-ons that do just this. An easy and straight forward one is Certificate Patrol . The problem with both solutions is that the ordinary user without a technical background is unlikely to use either one. On mobile platforms, using a VPN is not quite as straight forward, as keep-alive packets will drain the battery very quickly. Let's at least hope Firefox mobile and other mobile browsers get a similar add-on soon. However, that still leaves data transfers vulnerable from other apps such as email programs that use SSL to potect SMTP, POP3 and IMAP connections as well as apps that use HTTPS for data exchange. I agree with Ars Technica, the security architecture of the Internet needs a serious overhaul.
 
Huawei vs. ZTE – FIGHT!! Top
 
Ericsson's India Revival Top
 
Level 3 Claims Unique Backhaul Strategy Top
 
Verizon Says That LTE Is Back Top
 
Cisco Cuts Into Arris CMTS Margins Top
 
Apple May Bite On 'iCloud' Domain Top
 
Huawei's Enterprise Vision Gets Cloudy Top
 
Sprint Perks Up in Competitive Q1 Top
 

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Y! Alert: Telecom-Funda

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My Alerts

The latest from Telecom-Funda

Fraudulent SSL Certificates And How To Protect Yourself (A Bit)
The Comodo SSL hack last month has shown quite dramatically that SSL is prone to man-in-the-middle attack if you live or use SSL protected websites and services in places that make it easy for attackers to spy-on and divert IP packets. The way the attack works is that the data traffic to an SSL protected site is redirected to another server that then poses as the original server by sending a fraudulent SSL certificate. Out of the box, web browsers today don't indicate this to the user if the fraudulent SSL certificate was issued by a trusted but compromised certificate authority. For the technical details, see the excellent article on Ars Technica . So is there anything that can be done to protect yourself against it? Two things come to mind: First, whenever in a non trusted part of the Internet, a VPN tunnel can be established to an endpoint that lies somewhere where a man-in-the-middle has no access to. Many VPNs use certificates, too but since they don't rely on certificate authorities, man-in-the-middle attacks with bogous certificates won't work. The only solution for an attacker is to block VPNs from being established, and that the user notices immediately. The second way to detect against potential fraudulent SSL certificates is to be informed if a different certificate is presented to the web browser for a website than at a previous visit to the same site. There are valid reasons for this such as the old certificate being close to its expiry date but such certificate changes are very rate. The issue here is that web browsers do not show such a certificate change. For Firefox, however, there are add-ons that do just this. An easy and straight forward one is Certificate Patrol . The problem with both solutions is that the ordinary user without a technical background is unlikely to use either one. On mobile platforms, using a VPN is not quite as straight forward, as keep-alive packets will drain the battery very quickly. Let's at least hope Firefox mobile and other mobile browsers get a similar add-on soon. However, that still leaves data transfers vulnerable from other apps such as email programs that use SSL to potect SMTP, POP3 and IMAP connections as well as apps that use HTTPS for data exchange. I agree with Ars Technica, the security architecture of the Internet needs a serious overhaul.
 

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The Cloud and SMBs: Promising, but Not Quite as Easy as 1, 2, 3 Top
 
Think Before You Develop Top
 
Guest post on Visionmobile about Future of Voice Top
I've written for many years about the future of VoIP and personal communications. Recently, I've been mentioning terms such as "non-telephony voice" and the need for service providers to understand that the historic concept of the "phone call" is only one way of interacting with another person using speech. Last week's profit warning from Dutch operator KPN highlights the fragility of "old" telecoms communications services such as telephony and SMS, as newer applications better-customised to the idiosyncracies of human behaviour start to emerge. An open question is how well platforms such as IMS can cope with new modes of communication - especially those that aren't based on "sessions", but more fluid forms of interaction. This is a broad theme I'm going to be addressing in some depth over coming months, through a variety of publications and events. For now, however, please check out the guest post I've written for fellow analyst Andreas Constantinou's blog, VisionMobile on the Future of Voice, and the challenges being posed for "your grandmother's telephony service".
 
CenturyLink Clouds Up With Savvis Buy Top
 
Verivue: Cable's Content Delivery Demands Top
 

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