My research is on computer security and applied cryptography with a specific attention to web, game and mobile security.
19% of users feel the need to conceal some of their browsing activity.
Women use their browser private mode mainly for searching information and shopping, Men for various activities including searching information, looking up people and adult sites.
Over the last few weeks, except for RSA, you might have noticed I have been very quiet. The reason behind my silence was that I was changing job and getting settled in a new appartement in Mountain-View. I am now a research scientist at Google where I will work on trying to fix the Internet with a bunch of super smart people. To celebrate this transition and make it official, I thought it was a good idea to re-vamp my website. Working on a new version, made me realized that I have been running this website for over 10 years so I thought it would be fun to do a retrospective of some of the site previous versions and its evolution. Let’s get back in time !Read more >>
NuCaptcha is the first widely deployed video captcha scheme. Since Technology Review interviewed me about NuCaptcha in October 2010, I have been working on evaluating its security and usability. In this blog post, I will discuss how we are able to break the current version of NuCaptcha with >90% success and also discuss a possible approach to fix them.Read more >>
While their is a huge hype surrounding .xxx domains and companies rushing to buy them to protect their brand, it seems that registration data disagree with this. My analysis of the 50000 most popular websites in the world shows that only 24% of them actually registered their .xxx domain.Read more >>
It seems that today an old spamming technique is back from the dead with a new twist. Google docs spam is back but this time the spam is propagated via emails not the Google doc sharing feature.Read more >>