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Much discussion has
centered around the security and privacy aspects of VoIP as well
as significant issues in relation to emergency calls. This article will
focus on the importance of considering the wider implications of
security in the context of utilizing VoIP.
There are numerous security concerns with VoIP with two common
ones being the privacy aspect of eavesdropping in on a conversation and
a second being the hacking into and use of a VoIP users account.
It is arguable that focus in relation to security aspects of VoIP
technology has and continues to be improved and addressed. Even if this
is not the case are there bigger holes elsewhere? Most VoIP users
are operating on something other than a dedicated VoIP computer,
network, broadband link. That is they are using an existing computer and
everything that goes with and on it as well as a broadband link utilized
for general internet purposes.
Thus the same risks and concerns in relation to security of personal
computers and data transmissions there from is extremely relevant to the
VoIP world. This is especially relevant if using software
applications as a telephone rather than a standard telephone through an
Analog Telephone Adaptor (ATA).
In the case of software on a home PC it would therefore be vital to
secure the PC and operating system to the highest level possible by use
of firewall's and anti virus software for starters. This should be
obvious but how many users don't keep their firewall and anti virus
software updated along with the operating system as new security
exploitations are encountered and security upgrades supplied?
Additionally consider all things wireless. Anything wireless means a
radio communications transmitter at the departure point and a receiver
at the other allowing the possibility of interception somewhere
in-between. For example users of a Wireless LAN such as one compliant
with the 802.11 standard would need to consider security in relation to
the wireless or radio communication transmission aspect.
Whilst things have come a long way from the days of non encrypted
cordless phones and analog mobile phones that could be intercepted on a
commercially available scanning receiver, along with Dual Tone Multi
Frequency (DTMF) decoders meaning not only could conversations be
listened in on but PINs, account numbers etc entered via the keypad
could be decoded, you do not want to be the car with the mobile phone
visible on the front seat or the house with the door or window left
unlocked.
By examining, assessing and addressing the basic security aspects in
relation to PC/server setup along with increasing security for the Voice
Over Internet Protocol technology, it is hoped that the analogy could be
drawn that so many others are more vulnerable that you will either go
unnoticed or not be targeted due to the availability of much easier and
worthwhile targets.
Article Information
by Andrew Johnson
source: goarticles.com
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