Memorandum by the Internet Telephony Services
Providers' Association
1. The Internet Telephony Services Providers'
Association (ITSPA) is the UK VoIP industry's trade body, representing
over 80% of UK businesses involved with the supply of VoIP services
to industry and residential customers within the UK. We act as
the representative voice of the VoIP industry to Ofcom, the Home
Office and the DTI, as well as to EU institutions. Internet industries
are global, and consequently the regulation of them must aim to
follow suit. ITSPA has members in Australia and Europe, and pays
close attention to the development of VoIP regulatory frameworks
on a worldwide basis in order to ensure that the UK Internet telephony
industry is as harmonised as it can be with international developments.
2. ITSPA welcomes the Committee's inquiry
on this subject and the Internet. By responding to this call for
evidence ITSPA hopes to offer clarity on what Internet telephony
providers in the UK are doing to promote personal Internet security,
thereby giving the enquiry an informed base to work from.
3. ITSPA has recently met with the Cabinet
Office, the Home Office and the Association of Chief Police Officers
regarding issues of traceability, where ITSPA emphasised that
members hold assurances of personal Internet security for customers
as paramount.
4. ITSPA is committed to combating the threats
to personal Internet safety presented by Internet telephony, but
firmly believes that the VoIP (Voice over Internet Protocol) industry
is only one part of an extremely broad sector obliged to formulate
a response to such threats. Our response will focus on VoIP issues
and so must not be viewed as a comprehensive discussion of personal
security issues.
DEFINING THE
PROBLEM
What is the nature of the security threat to private
individuals? What new threats and trends are emerging and how
are they identified?
5. The motivations to attack Internet telephony
users are very similar to those associated with conventional phone
attacks: to benefit financially via toll fraud or identity and
information theft, and to gain notoriety, by disrupting service
and inconveniencing users. Furthermore, as computers running VoIP
software are more like computer than phone in structure they are
also potentially vulnerable to the unauthorised access, privilege
escalation and "system" misuse, viruses and worms, and
denial of service attacks exploiting network protocols that are
typical of networked computers.
6. Potential threats are identified by security
companies and trade bodies like ITSPA, and communicated widely
through both the trade press and mass media. ITSPA has identified
three threats that are currently of particular concern; phone
spam, "vishing" and CLI spoofing. However, although
we take every care to acknowledge and protect against these risks,
it is important to emphasise that none of them are currently creating
significant problems for UK consumers.
7. Phone spam, sometimes known as SPIT (Spam
over Internet Telephony), is not yet a major problem but it has
nonetheless received a great deal of attention from VoIP providers
and the trade press. VoIP systems, like other Internet applications
such as e-mail, are susceptible to attack by telemarketers or
phone system abusers who initiate unsolicited and unwanted communications.
Unlike e-mail however, the technology to filter or block unwanted
calls is potentially extremely complex.
8. A further worrying new trend is that
increasingly cyber criminals are targeting home users with "vishing"
attacks. Despite deriving the name from "phishing",
an e-mail based scam, "vishing" is essentially a traditional
telephony process made financially viable by new telephony technology.
It uses VoIP to send a large number of calls to standard PSTN
equipment using originating equipment that would have been prohibitively
expensive in the past. The Committee should note that despite
the wide exposure it receives, this problem is often covered in
a misleading way by the media and it does not currently present
a major worry to UK consumers.
9. ITSPA members have also noted the difficulties
posed by CLI spoofing. CLI (Caller Line Identification) or Caller
ID is made up of two separate entities: the calling number and
the subscriber name. CLI spoofing is the practice of causing the
telephone network to display a number on the recipient's caller
ID display which is not that of the actual originating station;
usually for nefarious purposes.
10. The problems posed by CLI spoofing are
three-fold. It can be used to trick subscribers into calling expensive
numbers by giving a caller ID the user does not recogniseencouraging
them to ring back. This practice has become incredibly common
in some countries, notably Japan. CLI is often used for caller
identification, and there are public expectations to this effect.
However, there are now web sites that allow anyone to make a call
with any caller ID, making it impossible to use such data as a
reputable identification source. Finally, there are issues posed
by the frequent use of caller ID for authentication. Major mobile
companies until recently had voicemail systems which would allow
access to voicemail based solely on a caller's CLI. Someone wishing
to check someone else's voicemail simply had to call their mobile
number with the caller ID set to be the same as the number they
were calling, allowing them to obtain access without any further
form of authentication. Although it is important caution is exercised
on this issue, it is must be recognised that UK networks have
traditionally strictly observed caller ID checking procedures.
This is unlike the situation in the US where telecommunications
companies have not validated caller ID on entry to the network
from "end-user" connections for some time.
11. When new threats arise, ITSPA members
can bring up concerns amongst its working groups and push the
issue onto the agenda at Council meetings. This allows for discussion
of preventive tactics and the development of a coherent industry
solution to the problem. ITSPA has a technical working group where
such concerns can be investigated at length and where the right
technical experts can resolve the various problems. ITSPA members
are also heavily involved in wider industry groups such as the
NICC, which try to tackle the various concerns that affect the
VoIP industry. CLI is an important part of the NICC agenda.
What is the scale of the problem? How are security
breaches affecting the individual user detected and recorded?
12. The scale of the problem varies according
to the particular threat discussed. Although phone spam is subject
to much industry discussion, there is little evidence as yet of
widespread difficulty. Vishing and CLI spoofing are a concern
but not to the point where the industry is struggling to cope.
With the VoIP market growing rapidly, ITSPA understands it is
imperative that there is careful monitoring of security issues.
13. ITSPA has endeavoured to tackle these
problems at the earliest possible stages, and in doing so has
successfully mitigated the damage they have caused to VoIP users
in the UK.
How well do users understand the nature of the
threat?
14. ITSPA works tirelessly to ensure that
there are high standards of consumer awareness and believes that
its members have a responsibility in providing clear education
for consumers and simple products for consumers to use to address
the security threats that present themselves in the online world.
However, users also have a responsibility to protect their computers
and the equipment that they are using. There is evidence to suggest
that because of the rapidity with which the nature of threats
can change, the precise nature of some security risks are not
comprehended by all users.
15. By working in a flexible self-regulatory
environment, the VoIP industry is better placed than others to
deal with the constant changes in the nascent Internet world.
ITSPA is able to quickly assimilate the nature of potential industry
risks and convey this information to customers, unburdened by
potentially cumbersome external regulation.
TACKLING THE
PROBLEM
What can and should be done to provide greater
computer security to private individuals? What, if any, are the
potential concerns and trade-offs?
16. Although hardware and software both
have very important roles to play in curtailing computer security
risks, the importance of consumer knowledge cannot be over-emphasised.
Many Internet crimes perpetrated via Internet telephony rely on
consumers being fooled, rather than an attack on the computer
or its software. Both vishing and CLI spoofing are avoidable difficulties.
ITSPA suggests that making the public more motivated to act on
security concerns is a crucial step in fighting Internet crime.
17. ITSPA notes that many UK ISPs have run
specific campaigns promoting security information to the public.
We are also encouraged by initiatives such as Get Safe Online,
which has received widespread media coverage and should go some
way to protecting consumers against Internet threats. ITSPA would
like to see the Government continuing to support such actions,
and persist in including industry sponsors from the communications
sector in discussions with the Cabinet Office, DTI, SOCA and other
relevant bodies or departments. We would also like to be involved
in setting up similar initiatives for Internet telephony in the
future if it were thought that such a step would help consumers.
18. ITSPA believes that it would be crucial
for any campaign to focus closely on the ever-changing threat
posed by Internet scams. Whilst initiatives that target specific
difficulties would have a positive impact in the short-term, the
adaptability of cyber-criminals makes it fair to assume that there
would be no realistic quick fix. Consequently, a program aiming
to target Internet crime by changing consumer attitudes is likely
to be successful in proportion to how entrenched the message of
caution is on consumers. While awareness has been raised, there
are still some steps that need to be taken.
What is the level of public awareness of the threat
to computer security and how effective are current initiatives
in changing attitudes and raising that awareness?
19. The public is generally increasingly
aware of computer security threats, though more vulnerable members
of society who are less exposed to the Internet are still at great
risk. However, the major problem seems not to be simply lack of
awareness, but of action. Recent statistics have suggested that
only half of the consumers surveyed for the report said they would
ignore "phishing" e-mail messages. Even more alarmingly,
almost one in 25 said they would respond to an unsolicited e-mail
about their online bank accounts. These figures are in response
to a relatively established scam. ITSPA is concerned that new
tactics like "vishing" may potentially have an even
more destructive effect if not acted upon.
20. ITSPA believes that it is clear that
much work remains to be done. Security initiatives should not
only be considered in terms of raising awareness amongst sections
of society who may not be as immersed in Internet culture, but
also to encourage positive action on the part of all private users.
ITSPA is extremely concerned that the prevailing attitude appears
to not take proper account of security risks, and works hard with
its members to ensure consumer attitudes are appropriate for the
problems faced.
What factors may prevent private individuals from
following appropriate security practices?
21. There is a series of factors that may
constrain use of adequate security by private Internet users.
The main problem seems to be the lack of impact industry initiatives
designed to encourage use of appropriate security practices are
having. Despite a number of high-profile company campaigns and
a genuine wish amongst many consumers to learn more about computer
protection, the majority remain ignorant as to where to turn and
what to do to make their computers secure. This is not simply
a function of the complexity inherent in computers but is also
indicative of the ingenuity of Internet criminals making it difficult
for many to follow rapid developments in hi-tech attacks.
GOVERNANCE AND
REGULATION
How effective are initiatives on IT governance
in reducing security threats?
22. The UK Government has played an invaluable
role in reducing security threats through various policy and advice
initiatives, such the Get Safe Online scheme already mentioned.
23. ITSPA is optimistic that the upcoming
Internet Governance Forum, which will discuss Security as one
of its topics, will be a continuation of the positive impact government
initiatives have had in developing personal Internet security.
How far do improvements in governance and regulation
depend on international co-operation?
24. ITSPA is concerned by the recent Ofcom
consultation into VoIP, which fails to account properly for the
flexibility of Internet markets and the associated risks of over-regulating
UK industry. The Internet is a truly global entity and consequently
it is of great importance that any governance initiatives recognise
this.
25. If regulation of the Internet is to
be successful and worthwhile, it must be done in a spirit of international
co-operation and harmonisation. ITSPA believes that Ofcom's measures
will ultimately fail to make a positive impact because foreign
providers can continue operating (within the UK) outside of the
regulatory framework whilst the competitiveness of UK-based firms
suffers. As previously mentioned ITSPA has members in Europe and
Australia, with the latter adopting a considerable amount of the
ITSPA Code of Practice as part of the national regulatory framework.
We feel that this approach of co-operation and convergence between
countries will ultimately create the healthiest markets and most
suitable regulatory framework to govern them.
Is the regulatory framework for Internet services
adequate?
26. ITSPA firmly believes that the current
system of self-regulation in the VoIP industry is perfectly adequate
for anticipating, identifying and communicating the risks associated
with Internet crimes.
27. Although ITSPA has been in existence
for less than two years, it has played a major role in ensuring
that the VoIP industry has grown in a rapid but stable fashion.
Not only have businesses been well placed to deal with security
difficulties, they have also been successful commercially as a
consequence of ITSPA membership.
28. ITSPA would also encourage the Committee
to note that for the past 10 years the Internet industry as a
whole in the UK has been a model example of self-regulatory success.
A clear endorsement of the success of this framework is the approach
to self-regulation adopted in the UK's Communications Act 2003
and applied by the UK's national regulatory authority, Ofcom.
29. Imposing external regulation would inevitably
make the process of communicating security threats to customers
a slower one. As speed is of the essence when dealing with online
crime, ITSPA believes neither consumers nor the industry would
gain from any change of framework being imposed.
What, if any, are the barriers to developing information
security systems and standards and how can they be overcome?
30. ITSPA believes that to excessively regulate
this area would create a barrier to developing information security
systems and standards, and that a flexible approach is needed
in order to be responsive to problems as they arise. Given that
the current state of affairs, ITSPA would suggest that any change
to the existing arrangement must be considered with extreme care
to determine whether it would be truly necessary.
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