I was invited to give a talk about blockchain security and vulnerabilities at an event in Zug, Switzerland. I was discussing security principles of blockchains, security problems and incidents. It was a great event and a pleasure to meet so many interested in the topic. More information can be found here.
I am attending this week Eurocrypt in lovely Vienna, Austria. It started with the co-located workshop AWACS: A Workshop About Cryptographic Standards, which was held on Sunday. It was organized by CryptoExperts who invited excellent speakers from the field. The main topics were the trust in cryptographic standards, insights from within the crypto working groups, current and future trends as well as political and societal aspects of cryptographic standards.
A very interesting article has been published recently: Gone in Six Characters: Short URLs Considered Harmful for Cloud Services by Martin Georgiev and Vitaly Shmatikov. The authors studied URL shorteners like those embedded in popular cloud services like Microsoft OneDrive or Google Maps. They demonstrated that such short URLs can be scanned using brute force and discover sensitive information.
What does that mean for us who need to collaborate?