Re: [tor-talk] Torbirdy

[Formidable <formidable@xxxxxxxxxx>]

I can't get how they can spy by UTC?
If i sends it at UTC+6 and he received it same time at UTC-6,
receiver will find in header UTC time.
So whats the problem, how can he convert it to +12? oO
It seems to be paranoid style worrying about date time header.
Problem is when Date header not set to UTC, but torbirdy make it UTC.

rocket_penguin@xxxxxxxxxx:
> Why doesn't everyone just use UTC in the Date: header and then the
> computer that the mail is being read on converts it to local time? This
> just makes it so people can spy on where you are/
> 
>> On 1/27/15, Dave Warren <davew@xxxxxxxxxxxx> wrote:
>>> On 2015-01-26 03:10, Cypher wrote:
>>>> Also, since the only
>>>> data leaked seems to be the local datetime, I'd think it's not a
>>>> massive
>>>> concern since my local datetime is shared with a few million other
>>>> people.
>>>
>>> While true, the time*zone* is also mentioned, and timezones can be a
>>> more interesting kettle of proverbial fish. Timezone rules vary from
>>> region to region, and so upon observing the dates your DST rules apply,
>>> I might determine your country or geopolitical location more
>>> specifically then just a 1/24th slice of the planet (plus all those
>>> funky :30 zones)
>>>
>>> More complicated is when you travel, if you update the timezone on your
>>> machine, this information is leaked too, so over time, your timezone
>>> information may actually reveal your travel to a very broad degree.
>>> Chances are that it would only take a very small number of
>>> cross-timezone trips for a gov't actor to correlate your timezone shifts
>>> with your travel itinerary, assuming such information is made available
>>> now or in the future.
>>>
>>
>> Of course, which is why we note that this is an issue, one which must
>> be fixed in Thunderbird sadly.
>>
>>> For most people, it's probably not a major risk, but for those who's
>>> livelihood or freedom relies upon anonymity, this is just the sort of
>>> leak that Big Data can use.
>>>
>>
>> Remember we're comparing Thunderbird without TorBirdy vs with
>> TorBirdy: it is strictly better, even if imperfect.
>>
>> All the best,
>> Jacob
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> 
> 
> 
> 
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