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Q-Day Summit™

Quantum Risk · Post-Quantum Cryptography · QKD
Paris
June 9 2026
Attend the Q-Day Summit™
Quantum breakage is no longer theoretical

The Q-Day Summit™ By Qadastra™ ofthe June 9, 2026 is the first executive summit dedicated exclusively to the cryptographic transition and to securing critical infrastructures in the face of quantum disruption.

While the threat”Harvest Now, Decrypt Later“(HNDL) weighs on sensitive data, the Q-Day Summit™ brings together decision-makers and experts to transform systemic risk into strategic agility.

The 2 pillars of Q-Day Summit™

Post-Quantum Cryptography (PQC)

  • Migration strategies and cryptographic inventory.
  • Standardization (NIST) and integration into existing systems.
  • Management of obsolescence and hybridization of protocols.

Quantum Communication & QKD

  • Physical infrastructures and key distribution networks (Quantum Key Distribution).
  • The emergence of the Quantum Internet: sovereignty issues.
  • Securing critical data flows (finance, energy, defense, etc.).

Event format

01
Keynotes
Visions of global thought leaders.
02
Round tables
Comparison of industrial use cases.
03
Mini stands
Networking between keynotes and round tables.
04
Business Facilitation
Private spaces for solution providers and contractors

Our sponsors

Join the
‍Q-Day Summit™

The Q-Day Summit™ is a closed-door event dedicated to decision-makers, entrepreneurs, and experts. Admission is subject to a rigorous selection process.

The organization reserves the right to decline any application that does not align with the target sectors or functions (C-Level, CISOs, institutional representatives, etc.), in order to preserve the interactivity and cohesion of this gathering of 150 executives.
Participate in Q-Day Summit™

Speakers

Laurent
Leloup
Founder
Ludovic
Chaker
Director & Deputy DGA
Marin
Ivezic
Laurent
Duperray
Ambassador & Strat. Advisor
Nicolas
Zubinski
Partner & Managing Director
Patrice Moyeuvre
Brigadier General (2s)
Thomas
de Kerangal
Jean-Jacques
Quisquater
Cryptographer & Academician
& Académicien
Daniel
Vert, PhD
AEC Hub Coordinator
Steve
Suarez
Founder & CEO
Jay
Oberai
Co-founder and CEO
Sharoz
Khan
Partnerships & Growth
Mohamed
Bassiouny
Cybersecurity Lab Leader
Paul
Chammas
Managing Partner
Mohamed
Abdelkader
Regional Lead - DI
Jonathan
Schmitt
Tech. Pre-Sales
Anthony
Da Ponte
France Digital Risk Leader
Thibaut
Drumain
Digital Risk & Cybersecurity
Lionel
Klein
Cybersecurity Leader
‍
Thibault
Verbiest
Lawyer & President, IOUR
Nouamane
Cherkaoui
Author & Deputy General Manager, BPCE-SI
‍
Daniel
Wynne
Co-Founder, COO
Maria
Christofi
Cryptography Expert
Yacine
Wayle
CEO
Quantos
Maman
Ibrahim
Guillaume
Forget
EVP Product
Boris
Schumperli
CISSP Engineer
Armel
Corre
Regional Sales Director
Stéphane
Meschi
Independent Analyst
Axel
Dyevre
Ruben
Landsberger
DeFi Consultant
‍
Marcelo
Becker
Q-Sover
‍
Pierre
Brun-Murol
CTO Global Cyber Products Eviden
Olivier
Paris
Director of Trust Office France
Noé
Curtz
Deputy CTO
Robbert
Schubert
Youssouf
Traore
Ansar
Hussain
Product & Transformation Lead
Manu
Nalepa
Ethereum Core Developer
Yannick
Gauthier
Optical Security Lead
John
Galani
PXVN Ltd
‍
Michael
Soppa
CEO
MiMi Tech Ai
Amin
Hasbini
AI & Cybersecurity Executive
‍
Henry
Tran
Cofounder & CEO
Jean-Charles
Antoine-Noirel
Geopolitician & CEO
Guillaume
de Bélair
Romain
Alléaume
Professor
Telecom Paris

Program

Tuesday, June 9, 2026 from 8:30 AM to 5:30 PM
Auditorium - WORKSTATION Building, 25 quai du Président Paul Doumer - 92400 Courbevoie
08.00
Welcome, registration, networking.
08.30 08.40
Q-Day Summit’s songs Projection by NEXO Harvest
‍By the producer of NEXO.
Introduction Q-Day Summit™ 2026
By Laurent Leloup (QASR).
08.40 09.05
Keynote: Uncertainties
By Ludovic Chaker (DGA).
09.05 09.30
Focus: PQC Migration: Between Theory and Practice
By Paul Chammas (QuRISK).
09.30 09.55
Focus: Unified Cryptographic Foundation - Regain Control and Master Your Post-Quantum Migrations
By Pierre Brun-Murol (Eviden).
09.55 10.15
Focus: Sovereignty-by-Design. Building the quantum-resistant trust layer for critical infrastructure
By Marcelo Becker (Q-Sover).
10.15 10.40
BREAK: Coffee and Tea, Networking, Visit Partner Areas
10.45 11.10
Focus: Crypto-agility. Challenges and Implementation
By Guillaume Forget (Cryptomathic).
11.10 11.40
Panel Discussion: Quantum: Strategic Autonomy and Cooperation
Moderator: Nicolas Zubinski (OGMA Intelligence).
Guests: Thomas de Kerangal (Colonel, Army - ret.), Patrice Moyeuvre (Air Force Brigadier General - ret.), Nouamane Cherkaoui (BPCE SI), Jean-Charles Antoine-Noirel (Astra G), Henry TRAN (Lumière Quantum).
11.40 12.10
Roundtable: Quantum Threats
Moderator: Ansar Hussain (Tata Consultancy Services).
Guests: Sharoz Kahn (Synergy Quantum), Steve Suarez (HorizonX), Daniel Wynne (Qubitra), Maman Ibrahim (Ginkgo Resilience), Amin Hasbini.
12.10 12.50
BREAK: Lunch cocktail, networking, and visit to partner areas
12.55 13.20
Focus: Global Quantum Race. Impact on EU Security
By Axel Dyèvre (Forward Global).
13.20 13.50
Roundtable: PQC Transition. From Strategy to Execution, Overcoming Operational Blockages
Moderator: Daniel Vert (Systematic).
Guests: Armel Corre (Cryptomathic), Boris Schumperli (Cryptomathic), Florent Grosmaitre (Hexatrust), Olivier Paris (HPE), Yannick Gautier (NOKIA) and Anthony Da Ponte (EY).
13.50 14.20
Roundtable: Resilience Strategies for Banks and Finance
Moderator: Stéphane Meschi.
Guests: Maria Christofi (BNP Paribas), Mohamed Abdelkader (Wultra), Brice Mollard (BPCE IT), Lionel Klein (Falcon Advisory).
14.20 14.40
Focus: Quantum Threat. Policies, Standards, and Roadmaps
By Jay Oberai (Synergy Quantum).
14.40 14.45
Official Launch of Global Quantum Threat Alliance (Geneva)
By Jay Oberai (Synergy Quantum).
14.45 15.10
Focus: PQC Migration: What No One Tells You Until You're Already In It
By Marin Ivezic (Applied Quantum).
15.10 15.30
BREAK: Coffee and Tea, Networking, Visit Partner Spaces
15.30
15.45
Focus: Quantum and Cryptography
By Jean-Jacques Quisquater (Cryptographer).
15.45
16.15
Panel Discussion: Quantum, Blockchains, and On-Chain Finance
Moderator: Ruben Landsberger
Guests: Yacine Wayle (Quantos), Jean-Jacques Quisquater (Cryptographer), Thibault Verbiest (Lawyer & President IOUR Foundation), Noé Curtz (Deputy CTO) & Manu Nalepa (Ethereum Core Developer).
16.15
16.30
Focus : The HTTPS for Autonomous AI: Building the Layer-0 Foundation for Ephemeral Trust
By Michael Soppa (MimiTechAI).
16.30
16.45
Focus: QKD: challenges and standardization
By Mohamed Bassiouny (QuRISK).
16.45
17.05
Focus: Quantum cryptography in the post-quantum era
By Romain Alleaume (Télécom Paris).
17.05
17.35
Roundtable: Financing the quantum race. Capital, sovereignty, and scaling
Moderator: Henry TRAN (Lumière Quantum).
Guests: Youssouf Traore (deep-tech investor & entrepreneur), Marcelo Becker (CEO Q-Sover), Robbert Shubert (CEO QEX Global), Yacine Wayne (CEO Quantos), John Galani (PXVN Ltd), Guillaume de Bélair (Panda Equity Research).
17.30
Closing remarks
By Laurent Duperray (Q-Day Summit™ Ambassador).

Associative partners

Media partners

NEXO 2045

NEXO 2045 will be speaking at the opening of the Q-Day Summit™.

Coming from the Metroplex universe, NEXO offers a prospective projection on the convergence between artificial intelligence, digital sovereignty and quantum transition.

The decisions taken in 2026 are already structuring the gap between:


  • Those who secure their quantum sovereignty
  • Those who underestimate the speed of the changeover

NEXO does not entertain.


It exposes a future conditioned by our present choices.

Escape the Matrix

NEXO 2045

NEXO 2045 will be speaking at the opening of the Q-Day Summit™.

Coming from the Metroplex universe, NEXO offers a prospective projection on the convergence between artificial intelligence, digital sovereignty and quantum transition.

The decisions taken in 2026 are already structuring the gap between:


  • Those who secure their quantum sovereignty
  • Those who underestimate the speed of the changeover

NEXO does not entertain.


It exposes a future conditioned by our present choices.

Escape the Matrix

Location

WORKSTATION Auditorium
25 Quai du Président Paul Doumer
92400 Courbevoie
Location: Workstation La Défense

Contact

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