Resources

Astran launches the Continuity Cloud for Digital Resilience, adopted by VINCI

By 2031, a violent cyberattack will occur every 2 seconds, and the price for our businesses is only increasing - with a new record already set at 75 million dollars paid to an attacker for a single ransomware in August 2024 - adding to the operational losses of 56 million euros per week for each cyberattack. This summer, the Microsoft Crowdstrike outage paralyzed 8.5 million machines, representing swathes of the global economy. In response, French start-up Astran has teamed up with several major French and German companies to build an IT resilience solution (Airbus, Arkea, Eiffage, Sanofi, VINCI and Volkswagen). VINCI has already adopted the solution.

October 15, 2024

Living a Ransomware Crisis: A CEO's Perspective

Prepare yourself for upcoming cybersecurity challenges by living a Ransomware crisis side by side with the CEO of an industrial company.

September 9, 2024

The Hacking Economy: Why Business Continuity is Crucial for SMEs

This article emphasizes the urgent need for small and medium-sized enterprises (SMEs) to prioritize business continuity in light of the rising threats from the hacking economy, which is projected to cost $10.5 trillion annually by 2025. SMEs are increasingly targeted due to their vulnerabilities and limited cybersecurity resources. Implementing a robust business continuity plan is essential for minimizing downtime, protecting sensitive data, and maintaining customer trust. The article also outlines actionable steps for SMEs to develop effective plans, such as conducting impact analyses and training employees. By prioritizing business continuity, SMEs can better prepare for cyber threats and ensure long-term resilience and success.

July 30, 2024

Cyber Attacks 101: vulnerabilities, exploitations, and defense lines

In this article, various forms of cyberattacks are explored, emphasizing the risks they pose to economic actors. The key attack methods discussed include Social Engineering, where attackers manipulate individuals to gain confidential information; Vulnerability Exploitation, exploiting weaknesses in systems; Bad Configurations, leading to accidental exposures; Password Cracking, using methods like brute force to access accounts; Eavesdropping, intercepting data over public WiFi; and Internal Attacks, threats from within an organization. The article highlights the importance of understanding these threats and implementing robust security measures to protect sensitive data and maintain digital continuity.

July 30, 2024

Cyber Mercenaries: Who? Why? For Who?

Learn everything you need to know about cyber mercenaries, their MO, and who's hiring them.

July 30, 2024

Unlock the Secrets to Managing Financial Risk from Ransomware

The guide leverages the Factor Analysis of Information Risk (FAIR) model, a cutting-edge framework that quantifies cyber risks in financial terms. Unlike qualitative models like NIST CSF, ISO/IEC 27001, OCTAVE, and COBIT, the FAIR model offers a detailed financial analysis, helping you prioritize risks based on their potential financial impact. This approach ensures you have a clear picture of the economic consequences of cyber threats, enabling more informed decision-making.

July 17, 2024

Business Continuity Planning 101

In this article, Loïc Formont, Astran Senior Solution Engineer, unveils you everything you need to know about Business Continuity Plans. What? Why? How? When? Where? After reading this article you'll understand why you need a solid continuity solution, allowing you to keep your operations up, always.

Loïc Formont

Senior Solution Engineer

July 15, 2024

Anonymization 101

Aicha Dridi’s latest article, "Anonymization 101", dives deep into crucial techniques such as anonymization, pseudonymization, and masking to help you safeguard sensitive data.

Aïcha Dridi (Phd.)

July 8, 2024

Advancing Multi-cloud Storage Security with Multi-party Threshold Schemes

The NIST Workshop on Multi-party Threshold Schemes (MPTS) 2023 was a landmark event that brought together experts from around the world to discuss advancements and future directions in cryptographic security. Among the distinguished speakers was Gilles Seghaier, our Chief Product Officer at Astran, whose insights captivated the audience and shed light on the pivotal role of multi-party threshold schemes in enhancing security for multi-cloud storage.

March 27, 2025

03/07/2024

Dayane Horkos, Elouan Gros.

Adversarial Models in Cryptography

Let's take a deep dive into adversarial models in cryptography. Get an overview of the evolving nature of internet security, starting from its inception as a secure space to its current state where cyber-crime is prevalent. The distinctions are made between static vs. adaptive, classic vs. quantum, and computationally bounded vs. unbounded adversaries.

June 3, 2024

The New Era of Cyber Resilience: Surviving Ransomware with Astran

Astran is excited to announce its pioneering webinar, "The New Era of Business Resilience: Surviving Ransomware with Astran," scheduled for June 5, 2024. This event marks a significant milestone in advancing how businesses address and recover from cybersecurity threats, particularly ransomware.

June 3, 2024

Ransomware Warfare: Defending your Business and Bottom Line

Learn how to protect your organization from evolving ransomware threats with our latest ebook, "The CIO Guide for Surviving Ransomware." Gain insights, defensive strategies, and actionable advice to navigate the dynamic threat landscape with confidence.

Astran

April 18, 2024

Secret Sharing as used by Astran

In this blog, we will start by defining the various techniques we use in Astran S5 and explore some further applications present in the literature, such as Multiparty computing (MPC), and how we differ. The first technique is the All or Nothing Transform (AONT). The second one is the Shamir Secret Sharing. We will then explain how we combined these techniques to implement our zero-trust storage solution. Later, we will explain the Secure Multiparty Computation and how it works. And finally, how the Shamir Secret Sharing is used with the SMPC.

Aïcha Dridi (Phd.)

April 18, 2024

Astran is now officially selected by the government, the ANSSI and Bpifrance for the SecNumCloud acceleration program!

Astran is now officially selected by the government, the ANSSI and Bpifrance for the #SecNumCloud acceleration program!

March 19, 2024

March 1, 2024

Founder & Chief Executive Officer

Cyber Hygiene and Best Practices

Continuing from the implementation of your digital asset mapping, it is crucial to anchor cyber hygiene into the daily routine of your company. Here is a selection of measures recommended by ANSSI for effective cyber defense, which are quite logically found in the measures that will gradually become mandatory under NIS2

Yosra Jarraya

March 13, 2024

Astran Wins Grand Prize for Innovation at Les Assises Cybersecurity Forum

Astran, a leading provider of cyber resilience solutions enabling operational business continuity, is proud to announce that it has been awarded the prestigious Grand Prize for Innovation at the Les Assises Cybersecurity Forum (to be held in Monaco in October 2025). The award recognizes Astran's cutting-edge solutions that are reshaping the landscape of treasury continuity and risk management.

September 2, 2025

June 27, 2025

Sanofi and Astran Announce Strategic Partnership

Sanofi and Astran Announce Strategic Partnership to Enhance Treasury Continuity with Cutting-Edge Operational Resilience Solution

September 2, 2025

Astran Named Among Wired’s Hottest Startups in Paris 2024

We are excited to share that Astran has been recognized by Wired as one of the “Hottest Startups in Paris” for 2024! This nomination reflects our dedication to transforming digital resilience through our flagship product, the Continuity Cloud.

October 16, 2024

October 14, 2024

Astran is Europe's Most Promising Cyber Security Solution

July 15, 2024

March 22, 2024

Empowering Business: How CIOs Unlock Potential by Sharing IT Control

April 14, 2024

AONT: an essential gadget for Multi-Party Threshold Cryptography Workshop

In this presentation, we will focus on a multi-cloud storage security use case. We present a multiparty threshold protocol that leverages multiple cloud service providers (CSPs). Our solution allows a client to store data by sending it to a proxy, which splits it before spreading the shares amongst a set of CSPs. We make use of a combination of primitives, including Secret Sharing Schemes (SSS), All-Or-Nothing Transform (AONT), and an additive Homomorphic Encryption (HE) scheme.

March 12, 2024

Cloud’s data storage : Astran, first effective technical measure post Schrems II approved by the CNIL

Astran, the software editor building zero trust storage in the clouds, becomes the first effective technical measure approved by the French Data Protection Authority (CNIL) in the context of the use of non-European cloud solutions, in particular for data archiving and multi-party processing.

March 12, 2024

Astran raises $5 million to set the new standard for secure cloud storage

Astran, a software company specializing in data security, today announced that it has raised $5 million with Galion.Exe & Sistafund. This round of funding will enable the company to continue accelerating the adoption of its new secure cloud storage standard.

March 5, 2024

What AI-Enabled Business Resilience Looks Like: A Real-World Finance Scenario

March 27, 2025

Operational Business Continuity

Make your Business Continuity Operational in the most simple way.

November 12, 2024

November 4, 2024

Survival Cloud by Astran - Illustrated via NextCloud

Video showcasing the seamless integration of Astran's Survival Cloud via NextCloud.

April 24, 2024

Survival Cloud by Astran -Illustrated via CyberDuck & Command Line

When Resilience meets Data Security, your more critical assets and services are always easily safely available.

April 24, 2024

Astran S5 - The S3 Compatible Confidential API

S3 is considered an industry standard and has become fundamental. Its widespread adoption across the industry has set a de facto standard, making compatibility a critical aspect for emerging cloud services. Astran's innovative approach, through its S5 product, pays homage to this standard by offering an S3 compatible API with a twist – enhanced Resilience & Security through Secret Sharing, without complicating the user experience. This blog post delves into the significance of S3, the pioneering S5 technology by Astran, and its seamless integration into existing ecosystems, ensuring both resilience and security natively.

April 23, 2024