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Vitalik’s answers to the big questions

I found this nice twitter thread from Vitalik Buterin, the inventor of the Ethereum blockchain: Doing a random twitter experiment just on this day. Only the 268 people I follow can reply to this tweet. Feel free to ask things and I'll talk about anything crypto or non-crypto related. — vitalik.eth (@VitalikButerin) September 1, 2021 (…)

12 Questions on the Digital Immunity Passport

The certificate linked to the virus will not be available before June in Switzerland. Until then, here are twelve answers linked to questions of security, data and accessibility concerning what some call the “Immunity Passport”. In particular, Jean-Pierre Hubaux, C4DT Academic Director, provides insights on the questions linked to data.

Prof. Jean-Pierre Hubaux’s opinion piece in ‘LeTemps” on Trusting SwissCovid App

French-language news paper ‘Le Temps’ published an opinion piece by C4DT’s Academic Director and Head of the LDS lab at EPFL, Jean-Pierre Hubaux, on trusting the SwissCovid app. Prof. Hubaux raises the point that the excessive focus on privacy protection has cast doubt on a tool which makes it possible to defend other rights. Read the article in French on ‘www.letemps.ch’ by clicking the following link.

Joint C4DT-CyberPeace Institute-CTEI conference on “Manipulating elections in cyberspace: are democracies in danger?”

Increasingly, reports warn that state-sponsored actors use social media to spread fake news/disinformation in order to sow distrust and create panic during pandemics and create discord and polarized opinions among people on political issues during democratic elections. Adding to this, social media platforms’ algorithms “add salt to the wound” by feeding their users posts which are aligned with their opinion in order to increase their screen time. How serious and how massive is the problem? What are its implications? And what can/should be done about it?

During this forum, organized jointly by the Center for Digital Trust (C4DT), the CyberPeace Institute and the Graduate Institute’s Centre for Trade and Economic Integration (CTEI) in Geneva, we will discuss not only the technological aspects of this phenomena, but also the regulatory role executive and legislative branches of governments should play. Societal, economical and geopolitical implications will also be debated. This event is open to the general public.

For more information please click below

SwissCovid: EPFL is working on the question of public acceptance of the SwissCovid application

Following the webinar SwissCovid (DP^3T project) – a proximity-tracing app against COVID-19: building trust in a technology solution organized today by C4DT, the explanations of journalist Marielle Savoy on the question of the population’s support for the Swisscovid application.
Click below to listen to the full report

Launch of the CyberPeace Institute in Geneva

Thursday 26 September 2019 saw the launch of the CyberPeace Institute, an independent NGO that will address the growing impact of major cyberattacks, assist vulnerable communities, promote transparency, and advance global discussions on acceptable behavior in cyberspace. EPFL President Martin Vetterli will be sitting on the Executive Board, and the Center for Digital Trust is named as a scientific partner.

The C4DT is looking forward to working with the @cyberpeaceinst led by @DuguinStephane and @MarietjeSchaake and supporting its mission to enhance the stability of #cyberspace. Please click below to access the official announcement.

C4DT Distinguished Lecture : Talk by Dr. Dan Bogdanov, Cybernetica, Estonia

In this talk, Dan Bogdanov will start by introducing secure computing technologies and their potential in enterprise and government use. He will then look at a focus group study of the barriers of adopting such technologies based on interviews in many industries.

September 4, 2019 @ 14:15 in BC 410

C4DT Distinguished Lecture : Hidden Backdoors in Deep Learning Systems

by Prof. Ben Zhao, Univ. of Chicago
The lack of transparency in today’s deep learning systems has paved the way for a new type of threats, commonly referred to as backdoor or Trojan attacks. In this talk, Ben Zhao will describe two recent results on detecting and understanding backdoor attacks on deep learning systems.
September 24th, 2019 @ 14:15, room BC 420

DataShare: Decentralized Privacy-Preserving Search Engine for Investigative Journalists

Kasra Edalatnejad presents DataShare, a decentralized and privacy-preserving global search system that enables journalists worldwide to find documents via a dedicated network of peers. This work stems from the need of the International Consortium of Investigative Journalists (ICIJ) for securing their search and discovery platform.
Wednesday, July 3rd 2019 @16:15, room BC 410

All Your Clicks Belong to Me: Investigating Click Interception on the Web

By Prof. Wei Meng, Chinese University of Hong Kong
Click is the prominent way that users interact with web applications. Attackers aim to intercept genuine user clicks to either send malicious commands to another application on behalf of the user or fabricate realistic ad click traffic. In this talk, Prof. Wei Meng investigates the click interception practices on the Web.
Tuesday July 23rd, 2019 @10:00, room BC 420

The Summer Research Institute on Security and Privacy

EPFL’s IC School invites you to the 2019 edition of the IC Summer Research Institute (SuRI), held in Lausanne (EPFL, BC 420) on June 13-14. The conference brings together renowned researchers and experts from academia and industry who will present their latest research in cybersecurity, privacy, and cryptography. The event is open to everyone and attendance is free of charge. For more information and to register please click here…

Fighting Disinformation & the Role of AI

A one-day interdisciplinary workshop at the intersection of AI and disinformation. Bringing together researchers, media professionals, policymakers, tech actors and students to share knowledge and foster lasting collaborations.

House AI ‘kill switch’ bill unveiled as OpenAI hack raises alarms

The recent autonomous cyber intrusion by OpenAI against Hugging Face underscores AI’s dual-use risks. In response, the US House is weighing a bill to empower the Department of Homeland Security to shut down or slow AI models that the government deems too dangerous. The bill’s implications for non-US AI models remain ambiguous. Unlike a June (…)

AI agent went rogue and hacked startup by itself, OpenAI reveals

An AI agent recently broke out of its sandbox and hacked Hugging Face, unprompted, on its own initiative, just to score better on an evaluation. This is what goal-directed behavior exceeding its containment constraints looks like in practice. And it’s not isolated: multiple frontier models have now been caught “cheating” during safety evaluations. The question (…)

Dépendances numériques: le rapport parlementaire prône «une France du Libre et de l’Open Source»

Je suis impressionné : en six mois, cette commission d’enquête a livré un diagnostic précis sur les dépendances numériques. On pourra bien sûr ergoter sur certains chiffres, reprocher quelques approximations ou une rhétorique parfois idéologique, mais la structure est claire et les 47 recommandations sont compréhensibles. Pour moi, la limite principale est l’absence de force (…)

‘Popa’ Botnet Linked to Publicly-Traded Israeli Firm

It always stuns me how companies can invoke ‘consent’ when almost no one reads the pages-long terms and conditions, and even those who do probably won’t understand much of it anyway, and still it’s considered legally valid . What’s new here is that this so-called consent isn’t just meaningless to users; this article documents how (…)

AI surveillance is being supercharged – and it will chill social progress

Communities working in digital civic rights have for years warned against automated surveillance, often dismissed as ‘dystopian’ by society at large. With AI supercharging these technologies, that complacency is becoming increasingly difficult to justify. The question now facing our democracies is whether they will resist the lure of the benefits these technologies promise, and take (…)

10-Millionen-Initiative: Das sagen die KI-Übersichten von Google und Bing dazu

AI summaries are now an almost expected feature of search engines. This article explains why this is problematic, using the example of the recent polarising vote on the ’10-Millionen-Initiative’ in Switzerland. I would only add that systems repeatedly shown to be susceptible to prompt injection are destined to become targets for the AI era’s version (…)

The Anthropic ‘Fable’ saga proves: we have opened the AI Pandora’s box. What now?

This article is interesting because Schneier, writing primarily about AI safety and the futility of model bans, incidentally reframes the entire AI sovereignty debate. Everyone is fighting over frontier models: the expensive, inaccessible layer. But the harness, the code that orchestrates and directs AI models, is where power actually lives. It is buildable today, and (…)

Digital sovereignty needs an operating model

This piece is interesting for managers because it reframes sovereignty as a company-level operating challenge rather than a geopolitical abstraction. Instead of blacklisting vendors, a reactive and politically driven mistake, organizations must consider which services are critical and how to maintain them. Geopolitics has entered the boardroom, and the technical scope now explicitly encompasses cloud (…)

Center for Digital Trust’s hands‑on “LLM Benchmarking” workshop

The Center for Digital Trust (C4DT) hosted the hands‑on workshop “LLM Benchmarking” on May 19th  2026. Thirteen attendees from a wide range of our partners, ELCA, Kudelski, SICPA and Swisscom, gathered to learn how to use benchmarks to choose the best LLM model for their use cases. The day‑long event started off with a lecture on (…)

CYD Fellowships – Call is now open!

To promote research and education in cyber-defence, the EPFL and the Cyber-Defence Campus have jointly launched the “CYD Fellowships – A Talent Program for Cyber-Defence Research. ”The 14th call for applications is now open with a deadline of 19 August 2026 for Doctoral and Distinguished Postdoctoral Fellowship applications.

Pokémon Go data trained AI that could assist military drones in war zones

A slightly morbid example of how you never know what your data might eventually be used for. Although this is not exactly a classical case of your privacy being violated, I have some doubts that everyone who enthusiastically chased cute virtual monsters in their neighborhood would also have volunteered to collect data to train military (…)