Comments on: High resolution tracking through cell phones http://www.theprivacyblog.com/innovation/high-resolution-tracking-through-cell-phones/ Anonymizer's Privacy Blog Tue, 07 Feb 2012 08:52:35 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: lance http://www.theprivacyblog.com/innovation/high-resolution-tracking-through-cell-phones/comment-page-1/#comment-4270 lance Fri, 23 May 2008 17:47:23 +0000 http://www.theprivacyblog.com/?p=77#comment-4270 Thanks, that is great information! I appreciate your jumping in as I would never claim to be a cellular technology expert. Thanks, that is great information! I appreciate your jumping in as I would never claim to be a cellular technology expert.

]]> By: brv http://www.theprivacyblog.com/innovation/high-resolution-tracking-through-cell-phones/comment-page-1/#comment-4267 brv Thu, 22 May 2008 23:29:04 +0000 http://www.theprivacyblog.com/?p=77#comment-4267 Further ... part II you say "The company claims that this is anonymous because only the phone company knows the correspondence between the IMEI and the customer’s real name" which as I have tried to show is just not correct. Further … part II you say “The company claims that this is anonymous because only the phone company knows the correspondence between the IMEI and the customer’s real name” which as I have tried to show is just not correct.

]]> By: brv http://www.theprivacyblog.com/innovation/high-resolution-tracking-through-cell-phones/comment-page-1/#comment-4266 brv Thu, 22 May 2008 23:28:05 +0000 http://www.theprivacyblog.com/?p=77#comment-4266 Well I have another take on this. Frankly it is easy to by-pass as "unique IMEI number" which is usually found printed on the phone underneath the battery and is placed there a bit like car tracking so that it can be used to stop a stolen phone from accessing the network which is a good thing. For example, if a mobile phone is stolen, the owner can call his or her network provider and instruct them to "ban" the phone using its IMEI number. This renders the phone useless, regardless of whether the phone's SIM is changed. Unlike the Electronic Serial Number or MEID of CDMA and other wireless networks, the IMEI is only used to identify the device, and has no permanent or semi-permanent relation to the subscriber. Instead, the subscriber is identified by transmission of an IMSI number, which is stored on a SIM card which can (in theory) be transferred to any handset. However, many network and security features are enabled by knowing the current device being used by a subscriber. HENCE THE IMSI is not the same as the IMEI !! Well I have another take on this. Frankly it is easy to by-pass as “unique IMEI number” which is usually found printed on the phone underneath the battery and is placed there a bit like car tracking so that it can be used to stop a stolen phone from accessing the network which is a good thing. For example, if a mobile phone is stolen, the owner can call his or her network provider and instruct them to “ban” the phone using its IMEI number. This renders the phone useless, regardless of whether the phone’s SIM is changed.

Unlike the Electronic Serial Number or MEID of CDMA and other wireless networks, the IMEI is only used to identify the device, and has no permanent or semi-permanent relation to the subscriber. Instead, the subscriber is identified by transmission of an IMSI number, which is stored on a SIM card which can (in theory) be transferred to any handset. However, many network and security features are enabled by knowing the current device being used by a subscriber.

HENCE THE IMSI is not the same as the IMEI !!

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