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research security

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

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 […]

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fitm research security

Technical Report: Friend-in-the-Middle (FITM) Attacks

Abstract. In the ongoing arms race between spammers and the multi-million dollar anti-spam industry, the number of unsolicited e-mail messages (better known as “spam”) and phishing has increased heavily in the last decade. In this paper, we show that our novel friend-in-the-middle attack on social networking sites (SNSs) can be used to harvest social data […]

Categories
research security

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

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 […]