(PDF) An Overview of Contemporary Cyberspace Activities

Paper Review
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introduction
 The increasing use of the cyber space has
posed major threats.
 It is therefore significant to come up with
various ways of curbing the threat posed.
 The threats include, cyber terrorism,
viruses, malware, attacks and several
others.

The Internet of Things (IoT)
 The Internet of Things (IoT) has made the various
physical objects become addressable, reachable and
locatable within the virtual world.
 The IoT is therefore expected to contains billions of
different objects that keeps on communicating with
each other.
 The objects include laptops and computers as well as
other physical devices.

Cont…
 The technologies and heterogeneity of the devices
used to provide services have grave impact on
 management, and
 operations of IoT devices.
 Therefore, major attacks and threats are facing IoT
that effects its functionality

Cont…
 Therefore, major attacks and threats are
facing IoT that effects its functionality.
 The paper sought to curb threats and attack
 provide adequate security to IoT.
 The paper incorporates graphical security
model
 assess and model security of IoT.

Objectives
 The paper sought to;
 Come up with a framework for the assessment and
modelling of the IoT.
 Develop graphical model aimed at computing the attack
scenarios.
 Formally define the framework
 Evaluate the framework by using three different scenarios.

Cont…
 The scenarios include:
 wearable healthcare monitoring
 A smart home
 Environment monitoring.

Related study
 The closely related study that had been carried out
was done by Ge and Kim in the year 2015.
 study designed the framework
 used and incorporated a two-layer geographical
security model
 referred to as the HARM
 assist in finding the potential attack scenarios.

Paper Review Cont’
 established the extended HARM
 has the ability of capturing attack paths within
the heterogeneous IoT networks.
 the framework has the ability to capture attack
 Under provision of;
network reachability
network information, and
vulnerability information is provided,

Major challenge
 Major challenge with this paper is the fact
that it lacks a mobility model.
 The movement of the devices influences the
changing network and so the mobility
model should have been designed to
facilitate capturing of the node movement
within the network.

Phases of framework
 The paper has discussed framework for the graphically
modelling and the assessment of IoT security
 Five phases;
 Security modelling generation
 Data processing
 security analysis
 Security visualization
 Model updates

Findings
 The study has come up with security evaluator and
security model generator.
 The security model generator is meant to create IoT
network
 Based on node vulnerability information and
reachability information
 Further, it makes analysis of the networks by the use
of different security metrics possible.

Three Different Networks
 The paper has introduced three different networks
 They exist in three different scenarios;
 Healthcare monitoring.
 Smart home.
 Environmental sensing and an evaluation carried
out.

Results
 Paper analysis:
 the person makes decisions regarding internet
security
 ability to establish most vulnerable part of the
whole network
 assess the efficiency of the various defense
mechanisms.

Conclusion
 The study allows the person to choose the most appropriate
way of protecting the network.
 It is therefore, a major milestone in the mitigation of the
impact of the potential attacks.

Reference
 Mengmeng G, Jin, B. H., Walter, G.
& Dong, S. K. (2017). A framework
for automating security analysis of
the internet of things. Journal of
Network and Computer
Applications 83, 12–27.