Imperial College London


Faculty of EngineeringDepartment of Computing




s.demetriou Website CV




Mrs Marina Hall +44 (0)20 7594 8259




364ACE ExtensionSouth Kensington Campus





I am a Lecturer at the Department of Computing at Imperial College London. 

Have you ever wondered how advertisers know that you are interested in that pair of shoes before you do? Have you heard about that baby monitor hacked to spy on toddlers? Did you know that researchers took remote control of a connected vehicle's steering and braking functionality? Is your smartphone a spying device waiting to be exploited? 

In my work I study such security and privacy issues, especially with respect to emerging application domains, such as smartphones and the Internet of Things. I find problems with such systems and propose alternative designs to eradicate them.

You can read more about my existing work at my personal website.

I currently have open positions for motivated PhD students excited about smartphone and IoT security. Research experience in this or similar area is preferred. If you are interested, please send me an email using “Prospective Security PhD Student” as subject.



Sintoris C, Yiannoutsou N, Demetriou S, et al., 2013, Discovering the invisible city: Location-based games for learning in smart cities, Interaction Design and Architecture(s), Vol:16, ISSN:1826-9745, Pages:47-64


Demetriou S, Zhang N, Lee Y, et al., 2017, HanGuard: SDN-driven protection of smart home WiFi devices from malicious mobile apps, Pages:122-133

Srivastava A, Jain P, Demetriou S, et al., 2017, Camforensics: Understanding visual privacy leaks in the wild

Lee Y, Li T, Zhang N, et al., 2017, Ghost Installer in the Shadow: Security Analysis of App Installation on Android, 47th IEEE/IFIP Annual International Conference on Dependable Systems and Networks (DSN), IEEE, Pages:403-414, ISSN:1530-0889

Tuncay GS, Demetriou S, Gunter CA, 2016, Draco: A System for Uniform and Fine-grained Access Control for Web Code on Android, 23rd ACM Conference on Computer and Communications Security (CCS), ASSOC COMPUTING MACHINERY, Pages:104-115

More Publications