road toll transponder hacked

mheyman at mheyman at
Tue Aug 26 10:15:36 EDT 2008

On Tue, Aug 26, 2008 at 9:24 AM, Perry E. Metzger <perry at> wrote:
>From the article: "other toll systems, like E-Z Pass and I-Pass, need
to be looked at too"

A couple years ago I got a letter from E-Z Pass a few days after I
used my transponder in my new car without registering my new car. They
gave me a grace period to register before making me pay some sort of

So, I believe, at least for E-Z Pass, the attack would have to include
cloning the license plate and pictures may still be available whenever
a victim realizes they have been charged for trips they did not take.

-Michael Heyman

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