IMPACTS OF WIFI SECURITYCASE STUDY OF SOCIAL NETWORKS

Assit.Prof. Chirasil ChayawanCommunication and Integrated Services Study Center

KMUTT

Main Technologies in Wireless

Proximity (Personal) area networkAd-hoc networkAlways connected in personal space

WLANMobile communication: 3G or beyondWLAN and mobile communication

InterconnectionDecoupling from terminal and applications from the

access methods

Integration of PAN, WLAN and Mobile communicationExtends users connectivityComplementary and hierarchical mannersUbiquitous wireless system

What is the weakest point in Wireless?

Wireless magnifies exposure vulnerabilityMobile device is

vulnerable to theft and lost.

Transmitted over the unprotected airwaves

Interoperability software: virus, hacking attacks

Wireless Vulnerability

Information going across the wireless link is exposed to anyone within radio range

The benefit of traditional wireline is the physical security

Mobile make it more…?

Difficult to establish trustDue to connection to physically hidden access pointCan service providers be trust in case of foreign networks?

System design issues

Mobile constraintsDesire low power consumption

Minimize computation Minimize network communication

By low processing capabilitiesBy limited link capacity

What mobile need?Cryptographic and other security algorithms to be simpleMinimize overhead for security protocol

Basic security for communication

Privacy Authentication Integrity and non-RepudiationAvailability and Access Control

Privacy

ConfidentiallyThe intended recipients know what was being sent

but unintended parties cannot determine what was sent.

Required some encryption at the senderand required some decryption at the receiver

Authentication

Confirms the identity of the other party in the communication

Assures that The claimed sender is the actual senderThe claimed receiver is the actual receiver

Integrity and Non-repudiation

Data integrity Data is transmitted from source to destination without

undetected alterationNon- repudiation

Prove that a received message came from a claimed sender

Availability and Access Control

Ensure availability of resources for the intended users

Controls access to resource

Conclusions

Integration of three main wireless approachesPANWLANMobile communication

Security concepts PrivacyAuthenticationIntegrity and Non-repudiationAvailability and Access control

How to stay safe on public WiFi Networks...

Turn off all sharing

Computer Network Settings: Enable the Firewall

Security Browser Extensions

Consider Using a Virtual Private Network

Turn It Off When You're Not Using It

Keep Updating the Softwares

How to stay safe on public WiFi Networks...

The Risks of Social Networks

How to stay safe on public WiFi Networks...

Social Networking Security Threats

Examples

http://www.forbes.com/2008/11/21/data-breaches-cybertheft-identity08-tech-cx_ag_1121breaches_slide.html

https://www.sans.org/reading-room/whitepapers/policyissues/reducing-risks-social-media-organization-33749

http://www.networkworld.com/news/2011/053111-social-media-security.html?page=1

Examples

http://www.sophos.com/en-us/security-news-trends/security-trends/social-networking-security-threats/protection-strategies.aspx

https://securityinabox.org/en/chapter_9_1

http://www.staysafeonline.org/stay-safe-online/protect-your-personal-information/social-networks

Assit.Prof. Chirasil ChayawanDirector

Communication and Integrated Services Study Center (CISS)KMUTT

chirasil.cha@kmutt.ac.th