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The author of this blog, David T.S. Fraser, is a Canadian privacy lawyer who practices with the firm of McInnes Cooper. He is the author of the Physicians' Privacy Manual. He has a national and international practice advising corporations and individuals on matters related to Canadian privacy laws.

For full contact information and a brief bio, please see David's profile.

Please note that I am only able to provide legal advice to clients. I am not able to provide free legal advice. Any unsolicited information sent to David Fraser cannot be considered to be solicitor-client privileged.

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The views expressed herein are solely the author's and should not be attributed to his employer or clients. Any postings on legal issues are provided as a public service, and do not constitute solicitation or provision of legal advice. The author makes no claims, promises or guarantees about the accuracy, completeness, or adequacy of the information contained herein or linked to. Nothing herein should be used as a substitute for the advice of competent counsel.

This web site is presented for informational purposes only. These materials do not constitute legal advice and do not create a solicitor-client relationship between you and David T.S. Fraser. If you are seeking specific advice related to Canadian privacy law or PIPEDA, contact the author, David T.S. Fraser.

Friday, February 25, 2005

Interesting: How Do Cell Phones Reveal Your Location?

I was searching Slate and happened upon this interesting article, which discusses how your movements (current and historical) can be tracked using your cell phone.

How Do Cell Phones Reveal Your Location? By Brendan I. Koerner:
"...Location data extrapolated from tower records is frequently used in criminal cases. It was vital, for example, to the prosecution of David Westerfield, who was convicted of murdering 7-year-old Danielle van Dam in San Diego. The killer's cell-phone usage revealed a bizarre travel pattern in the two days following the girl's disappearance, including a suspicious trip to the desert. In cases like this, wireless providers will not release a user's records without a court order, save for rare instances in which a kidnapping has taken place and time is of the essence...."

One thing that the article did not highlight is that as long as your phone is on, it is regularly communicating with the local towers, generally checking into the netwok and checking for messages. This information can be logged and often is. So even if you aren't talking on the phone, it can reveal your location.

Labels: information breaches