社交网络中的安全与隐私问题

necessary • Privacy protection is of great value
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More about ?
“Yang Xiang” or “NSCLab”
“Yang Xiang Deakin” or “NSCLab” http://anss.org.au/yang http://anss.org.au/nsclab
社交网络中的安全与隐私问题 Security and Privacy in Social Networks
Professor Yang Xiang Network Security and Computing Laboratory (NSCLab)
School of Information Technology Deakin University, Melbourne, Australia
http://anss.org.au/nsclab
Major Research Themes
• Security and Privacy • Large-scale attacks and defence • Malware modelling and classification • Trusted computing • Applied cryptology • Social networks security • Networking • Network analytics • Traffic classification • Big data analytics • CPS, IoT, and RFID • Social networks analytics
Networks • Research Challenges and Potential Solutions • Conclusion
Conclusion
• Social networks are important • Security design in social networks is
• POSITIVE INFORMATION
The White House quickly issued a statement saying the report of explosions was not correct.
Negative Results Reuters data showed the tweet briefly wiped out $US136.5 billion of the S&P 500 index's value before markets recovered.
Networks • Research Challenges and Potential Solutions • Conclusion
Research Challenges and Potential Solutions
Challenge 1 – Protect User Privacy Challenge 3 – Control Information Propagation Challenge 2 – Malware Classification and Propagation Challenge 4 – Social Spam Detection
Fra Baidu bibliotek
Networks • Research Challenges and Potential Solutions • Conclusion
Introduction
• The booming of social networks
Introduction
• Internet in China in 60 seconds
• Case 1: Koobface
Security and Privacy Problems in Social Networks
• Case 2: Weibo
Security and Privacy Problems in Social Networks
• Case 3: Mobile applications
• Challenge 2 – Malware Classification and
Propagation
• Web-based malware • Shortened URL • Correlation among domains, URLs, and
contents
Research Challenges and Potential Solutions
Research Challenges and Potential Solutions
• Challenge 4 – Social Spam Detection • Origin of spammer • Methods to craft spam
Research Challenges and Potential Solutions
Security and Privacy Problems in Social Networks
• Problem 2 – Malware • Fast propagation • Invisibility
Security and Privacy Problems in Social Networks
Security and Privacy Problems in Social Networks
Problem 1 – Privacy Leakage Problem 3 – Information Propagation Problem 2 – Malware
Problem 4 – Social Spam
Introduction
Agenda
• Introduction • Security and Privacy Problems in Social
Networks • Research Challenges and Potential Solutions • Conclusion
Security and Privacy Problems in Social Networks
Security and Privacy Problems in Social Networks
• Case 4: Rumor spread – 2013 market chaos
• NEGATIVE INFORMATION
Hackers took control of the Associated Press Twitter account overnight and sent a false tweet about two explosions at the White House that briefly sent US financial markets reeling.
• Problem 5 – Social Network Attacks • Sophisticated and large-scale • Coordinated
Agenda
• Introduction • Security and Privacy Problems in Social
Challenge 5 – Attack Control
Research Challenges and Potential Solutions
• Challenge 1 – Protect User Privacy • Social interaction • Data mining
Research Challenges and Potential Solutions
• Problem 3 – Information Propagation • Positive and negative information • Most influential users
Security and Privacy Problems in Social Networks
Research Challenges and Potential Solutions
• Research at NSCLab, Deakin University • Twitter data analysis
Agenda
• Introduction • Security and Privacy Problems in Social
• Challenge 3 – Control Information
Propagation
• Propagation modelling • Locating most influential users • Interaction among positive and negative
information
• Problem 4 – Social Spam • Context-aware • Broadcasting
Security and Privacy Problems in Social Networks
• Problem 4 – Social Spam
Security and Privacy Problems in Social Networks
Agenda
• Introduction • Security and Privacy Problems in Social
Networks • Research Challenges and Potential Solutions • Conclusion
Agenda
• Introduction • Security and Privacy Problems in Social
• Challenge 5 – Attack Control • Sybil attacks • Trust mechanism
Research Challenges and Potential Solutions
• Research at NSCLab, Deakin University • Information propagation modelling
Problem 5 – Social Network Attacks
Security and Privacy Problems in Social Networks
• Problem 1 – Privacy Leakage • Leakage from different parties • Privacy information include: identity, personal information, user profile, relationship, social graph, location, etc