[access-uk] Re: Emails security
- From: Tristram Llewellyn <tristram.llewellyn@xxxxxxxxxxxxxxxxxxx>
- To: "'access-uk@xxxxxxxxxxxxx'" <access-uk@xxxxxxxxxxxxx>
- Date: Mon, 29 Nov 2010 11:06:48 +0000
Even if you are using email on a standard email client and even if you have
some secure authentication (not all providers even have that!) the actual text
of the email including the headers is sent in the clear. This means any
information in the email is potentially susceptible to interception.
If you are using a site that solely works in HTTPS secure mode (like Gmail) at
a wi-fi hotspot then your conversation with the webmail site cannot be
intercepted within the hotspot or at least what is intercepted is just pseudo
random noise generated by the secure connection. However, again after that the
email will be sent through the Internet in the clear as plain text. This is
fundamentally the reason why putting credit card details and other sensitive
information is not advised because although most of the time one can hope it is
not being monitored it could be.
Attachments of one kind or another are a major point at which key loggers can
be installed but by no means the only ones. The best way to secure again these
is not to open them at all, or at least only deal with those you know the
source of is genuine. Adobe Reader documents are a major source of exploit so
treat these with a great deal of caution and update Adobe Reader wherever
possible. There are also certain features that can be turned off which enhance
the security.
One day somebody will invent secure email but until they do you have to
consider the traffic unsecured and exercise some caution.
Regards.
Tristram Llewellyn
Sight and Sound Technology
Technical Support
www.sightandsound.co.uk
Mail:
Tristram: tristram.llewellyn@xxxxxxxxxxxxxxxxxxx
Technical: Support@xxxxxxxxxxxxxxxxxxx
General - info@xxxxxxxxxxxxxxxxxxx
Phone:
Support line: 0845 634 7979
Sight and Sound Technology Limited is a company registered in England and
Wales, with company number 1408275.
Sight and Sound Technology
Welton House North Wing
Summerhouse Road
Moulton Park
Northampton
NN3 6WD
VAT Number - GB 860 2121 66.
-----Original Message-----
From: access-uk@xxxxxxxxxxxxx [mailto:access-uk@xxxxxxxxxxxxx] On Behalf Of
George Bell
Sent: 29 November 2010 10:50
To: access-uk@xxxxxxxxxxxxx
Subject: [access-uk] Re: Emails security
Hi Derek,
I was watching a TV program only this weekend where they demonstrated
how easily one could be caught with things like "Key loggers". These
can arrive in what appears to be an innocent e-mail message and send
every keystroke to press to some wallie on a beech in Argentina via a
circuitous internet route which is hard to trace.
Also, for a hacker, intercepting e-mail is often child's play/
The program also surveyed users who were using wireless hotspots here
in the U.K. and found an alarming number of people who had absolutely
no anti-virus protection at all.
George.
-----Original Message-----
From: access-uk@xxxxxxxxxxxxx [mailto:access-uk@xxxxxxxxxxxxx] On
Behalf Of Derek Hornby
Sent: 29 November 2010 10:13
To: access-uk@xxxxxxxxxxxxx
Subject: [access-uk] Emails security
Hi All
I am aware that it's not a good idea to put credit card details in
an
email.
But what's the actual reason.
I mean surely the chances of an email correctly addressed, Going to
the wrong address, is less likely compared to postal mail
Being delivered to wrong address!
Regards, Derek
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