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From: Brian Hoffman <brianchoffman@gmail.com>
In-Reply-To: <CANEZrP3ekWQWeV=Yw_E=n0grORBLHaXLUh3w0EFQdz=HsjWvZw@mail.gmail.com>
Date: Thu, 5 Feb 2015 16:19:47 -0500
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To: Mike Hearn <mike@plan99.net>
Cc: Bitcoin Dev <bitcoin-development@lists.sourceforge.net>,
	Paul Puey <paul@airbitz.co>
Subject: Re: [Bitcoin-development] Proposal for P2P Wireless (Bluetooth LE)
	transfer of Payment URI
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This sounds horrible. You could basically monitor anyone with a wallet in a h=
ighly populated area and track them super easily by doing facial recognition=
. Yes you could photograph people but it's way more burdensome. Sorry to go o=
ff topic a little.


On Feb 5, 2015, at 3:50 PM, Mike Hearn <mike@plan99.net> wrote:

>> I'm imagining myself walking around broadcasting my photo and MAC
>> address while hucksters push payment requests to me for approval
>=20
> I hate to break it to you, but you broadcast a photo of your face every ti=
me you walk outside ;)
>=20
> Bluetooth MAC addresses are random, they aren't useful identifiers. If som=
eone can see you, a face is a far more uniquely identifying thing than a MAC=
.
>=20
> "Payment spam" might be a problem. I can imagine a wallet requiring that s=
uch requests are signed and then spammers can be blacklisted in the usual fa=
shion so they can't push things to your phone anymore. Anyway, a hurdle that=
 can be jumped if/when it becomes an issue.
> --------------------------------------------------------------------------=
----
> Dive into the World of Parallel Programming. The Go Parallel Website,
> sponsored by Intel and developed in partnership with Slashdot Media, is yo=
ur
> hub for all things parallel software development, from weekly thought
> leadership blogs to news, videos, case studies, tutorials and more. Take a=

> look and join the conversation now. http://goparallel.sourceforge.net/
> _______________________________________________
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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto"><div>This sounds horrible. You could basica=
lly monitor anyone with a wallet in a highly populated area and track them s=
uper easily by doing facial recognition. Yes you could photograph people but=
 it's way more burdensome. Sorry to go off topic a little.</div><div><br></d=
iv><div><br></div><div>On Feb 5, 2015, at 3:50 PM, Mike Hearn &lt;<a href=3D=
"mailto:mike@plan99.net">mike@plan99.net</a>&gt; wrote:<br><br></div><blockq=
uote type=3D"cite"><div><div dir=3D"ltr"><div class=3D"gmail_extra"><div cla=
ss=3D"gmail_quote"><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .=
8ex;border-left:1px #ccc solid;padding-left:1ex">I'm imagining myself walkin=
g around broadcasting my photo and MAC<br>
address while hucksters push payment requests to me for approval</blockquote=
><div><br></div><div>I hate to break it to you, but you broadcast a photo of=
 your face every time you walk outside ;)</div><div><br></div><div>Bluetooth=
 MAC addresses are random, they aren't useful identifiers. If someone can se=
e you, a face is a far more uniquely identifying thing than a MAC.</div><div=
><br></div><div>"Payment spam" might be a problem. I can imagine a wallet re=
quiring that such requests are signed and then spammers can be blacklisted i=
n the usual fashion so they can't push things to your phone anymore. Anyway,=
 a hurdle that can be jumped if/when it becomes an issue.</div></div></div><=
/div>
</div></blockquote><blockquote type=3D"cite"><div><span>--------------------=
----------------------------------------------------------</span><br><span>D=
ive into the World of Parallel Programming. The Go Parallel Website,</span><=
br><span>sponsored by Intel and developed in partnership with Slashdot Media=
, is your</span><br><span>hub for all things parallel software development, f=
rom weekly thought</span><br><span>leadership blogs to news, videos, case st=
udies, tutorials and more. Take a</span><br><span>look and join the conversa=
tion now. <a href=3D"http://goparallel.sourceforge.net/">http://goparallel.s=
ourceforge.net/</a></span></div></blockquote><blockquote type=3D"cite"><div>=
<span>_______________________________________________</span><br><span>Bitcoi=
n-development mailing list</span><br><span><a href=3D"mailto:Bitcoin-develop=
ment@lists.sourceforge.net">Bitcoin-development@lists.sourceforge.net</a></s=
pan><br><span><a href=3D"https://lists.sourceforge.net/lists/listinfo/bitcoi=
n-development">https://lists.sourceforge.net/lists/listinfo/bitcoin-developm=
ent</a></span><br></div></blockquote></body></html>=

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