internet security tHreAt rePOrt GOVernMent 2013

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Symantec Corporation
Internet Security Threat Report 2013 :: Volume 18
ThREAT ACTIVITy TRENDS
Analysis of Web Policy Risks from Inappropriate Use
Background
Many organizations implement an acceptable usage policy
to limit employees’ use of Internet resources to a subset of
websites that have been approved for business use. This enables
an organization to limit the level of risk that may arise from
users visiting inappropriate or unacceptable websites, such as
those containing sexual images and other potentially illegal
or harmful content. Often there will be varying degrees of
granularity imposed on such restrictions, with some rules being
applied to groups of users or rules that only apply at certain
times of the day; for example, an organization may wish to
limit employees access to video sharing websites to only Friday
lunchtime, but may also allow any member of the PR and
marketing teams access at any time of the day. This enables
an organization to implement and monitor its acceptable usage
policy and reduce its exposure to certain risks that may also
expose the organization to legal difficulties.
Data
Figure A.12. Web Policies that Triggered Blocks, 2011–2012
Source: Symantec.cloud
Methodology
Rank Top 10 Category 2012 2011 Change
1 Advertisement and Pop-ups 31.8% 46.6% -14.8%
2 social networking 24.1% 22.7% 1.4%
3 streaming Media 9.0% 18.9% -9.9%
4 chat 4.7% 3.2% 1.5%
5 computing and internet 4.0%