Social Snapshot Pilot – Completed

Posted: May 30th, 2012 | Author: | Filed under: random, research, security | Tags: , , , , , , | No Comments »

In the past six month 97 people participated in our social snapshot pilot survey. As of now, the pilot application is not available for public testing anymore. We are currently working an updated release of our social snapshot framework, with plenty of new functionality and performance improvements. So stay tuned for the upcoming release of our social network security and forensics framework.

Thank you so very much to everyone who gave our social snapshot framework a try!


Social Snapshot Pilot survey

Posted: January 19th, 2012 | Author: | Filed under: random | Tags: , , , , , , , , | No Comments »

Securely download a copy of your Facebook account:

  • Account data (JSON + Gephi Files)
  • All tagged pictures

It only takes two clicks:
http://is.gd/snapshotsurvey


Social Snapshots and Gephi

Posted: September 23rd, 2011 | Author: | Filed under: personal, random, research, security | Tags: , , , , , , , , , , | No Comments »

We will present a new tool to extract the complete account information from social networks, like Facebook, at this years’ ACSAC.
More information on the social snapshot project are also available here:  Social Snapshots: Digital Forensics for Online Social Networks
Currently I am looking for ways to visualize extracted data from Facebook. Gephi is a graph visualization tool that looks very promising for creating fancy graphs. Below are two graphs I created with Gephi on my Facebook data (extracted with a social snapshot of my account).

Download Gephi examples on my FB account data (pdf)

The first graph outlines how my Facebook Friends are connected with each other – the bigger the Graph nodes – the more connected is a given friend with other FB friends of mine. The second graph outlines who tags whom the most – on pictures amongst my FB friends.


Dropbox Security: Dark Clouds on the Horizon at USENIX’11

Posted: June 22nd, 2011 | Author: | Filed under: research, security | Tags: , , , , , , , , | No Comments »

Back in March 2010 we started an investigation into online file storage services and Dropbox in particular. Sebastian and Manuel started to disassemble the Dropbox binary and in essence created an alternative client by patching its crypto libraries. In the months that followed we found a number of security flaws with Dropbox. In November 2010 we informed Dropbox about the security holes we found: unauthorized file access as well as a potential misuse of Dropbox for an unlimited online slackspace. It took Dropbox until April 2011 to respond to our findings. In the meantime a number of independent researchers found some of the security shortcomings we described (e.g. Christopher Soghoian’s blog entry).

Thus, we are more than happy to finally present our research at this year’s USENIX Security conference in San Francisco.

In addition to our findings Dropbox had a security glitch this week, whereas authentication without providing a valid password was possible for around 4h. In summary: One should be very careful which information is stored on Dropbox and Dropbox has to overhaul their service’s security.

Preprint of our paper, is available here: dropboxUSENIX2011.pdf

More information: SBA Research


Who On Earth Is ”Mr. Cypher“: Automated Friend Injection Attacks on Social Networking Sites

Posted: June 14th, 2010 | Author: | Filed under: research, security | Tags: , , , , , , | No Comments »

Abstract. Within this paper we present our novel friend injection attack which exploits the fact that the great majority of social networking sites fail to protect the communication between its users and their services. In a practical evaluation, on the basis of public wireless access points, we furthermore demonstrate the feasibility of our attack. The friend injection attack enables a stealth infiltration of social networks and thus outlines the devastating consequences of active eavesdropping attacks against social networking sites.

Preprint

http://friendinjection.nysos.net