Cybersecurity
360° Cyber Resilience
Anticipate, protect, and respond to emerging threats.
The adoption of a cyber‑resilience strategy, supported by automation, advanced expertise, and cutting‑edge cryptographic technologies, represents a triple performance lever
Resilience & Operational Continuity Lever
Anticipate current and emerging threats, including those leveraging AI, to ensure the availability of your critical systems, automate incident detection and response, and protect the continuity of your value chain.
Trust & Market Differentiation Lever
Embed security by design, advanced encryption, and post-quantum readiness to make cyber trust a decisive differentiator in your most demanding markets.
Governance & Strategic Compliance Lever
Turn regulatory constraints (NIS2, DORA) into a structured governance framework, aligning cyber maturity, real risk indicators, and business priorities.
Protect. Anticipate. Sustain. Your end‑to‑end cyber strategy
We help organizations sustainably reduce their exposure to cyber risks, avoid high remediation costs, and prevent business disruptions that directly impact margins, operational performance, and stakeholder trust.
We anticipate the evolution of threats, amplified by the industrialization of attacks through AI, increased computing power, and cryptographic challenges linked to the emergence of quantum technologies.
We support executive, IT, and risk teams in decision-making and major incident management by combining security-by-design approaches with AI-augmented analytics capabilities.
500+
experts
1
“Cloud & Cyber” Center of Excellence (CoE)
Strategy, Governance & Compliance
- Risk, audit, and cyber strategy: we map your risks, analyze threat scenarios, and prioritize critical vulnerabilities with high impact on your margins, based on comprehensive audits of your operating model and technologies, including your AI models. This enables us to define tailored hardening strategies supported by a clear roadmap.
- Governance and compliance: we build a robust cyber governance framework (roles, responsibilities, CISO steering, security policies, charters, standards, ISMS) and ensure continuous compliance with applicable regulations (GDPR, NIS2, DORA, LPM, PCI DSS, ISO 2700X), up to ISO 27001 certification.
- Business continuity & crisis management: we strengthen your operational resilience through the definition and continuous update of business continuity and disaster recovery plans (BCP/DRP), as well as cyber crisis management exercises, to minimize operational and financial impact in the event of an incident.
Security of Cloud & Network Foundations
- Security by design: we design resilient, hybrid, and multi-cloud network and cloud architectures, embedding security from the outset, and controlling data flows, boundaries, and exposure points to protect your strategic assets.
- Platform integration and cyber modernization: we select and integrate market-leading solutions (Palo Alto, Fortinet, etc.) and modernize your defense capabilities (penetration testing, automated detection, AI-driven countermeasures) to strengthen the effectiveness and coverage of your security posture.
- Identity and access management: we structure identity and access control across your entire information system (Active Directory, Azure AD, Microsoft 365, etc.), reinforcing authentication mechanisms and privileged access management.
Enhanced Protection & Detection
- Penetration testing: we identify vulnerabilities through testing across multiple access layers (web, infrastructure, mobile, application, AI models), enhanced by the use of specialized AI agents to simulate realistic attack scenarios.
- Advanced detection and security monitoring: we deploy and operate detection systems (EDR, SIEM, SOAR, SOC), provide monitoring through AI-assisted L2/L3 SOC teams, and continuously optimize detection rules, investigations, and remediation to maintain system integrity.
- Incident response and human resilience: we strengthen incident response capabilities (attack path identification, malware analysis, etc.), support post-incident recovery, and deliver awareness and training programs (phishing simulations, etc.).
Our Interventions
Our Research Work
As cyber threats multiply, AI adoption accelerates, and regulatory complexity increases, organizations must anticipate and innovate to effectively secure infrastructures and intelligent assets.
Our Articles
BEING A CYBERSECURITY LEAD AT ASTEK: BETWEEN EXPERTISE, INNOVATION, AND COMMITMENT
As a key contributor to the development of Astek’s cybersecurity offerings, I strive to embody a technical, human, and strategic vision in a constantly evolving field.
Securing the Future of Financial Systems – Cybersecurity, AI, Cloud Sovereignty, and Compliance in Banking, Finance, and Insurance
For several months, the financial sector has been driven by ambitious promises of a new era of digital resilience…
Cybersecurity at Astek: Ambitious Projects and Ever-Evolving Expertise
My journey at Astek began two years ago, a period marked by numerous opportunities for personal and professional growth.
Cyber Commando: audits, penetration testing, and breakpoint stress testing for a payments leader
For a French payment services and card processing player, we deployed a specialized intervention task force to conduct high-precision offensive audits on critical applications. To ensure absolute neutrality and complete isolation, this cyber commando operated in a double-blind mode, with no access to prior findings, confronting systems with the raw reality of real-world threats.
By combining Black Box intrusion scenarios (external attacker conditions) and Grey Box assessments (internal functionality analysis), our experts dissected each vulnerability to assess its immediate business criticality. This tactical approach goes beyond vulnerability listings: it delivers an emergency remediation roadmap and tangible proof of resilience, securing banking transaction flows and reinforcing the trust of France’s leading retail brands.
Cyber Resilience Optimization and Accelerated Operational Efficiency for an Aviation Industry Leader
Astek supports a global leader in aviation technologies in strengthening the security and performance of its IT infrastructure, used by development teams across more than 15,000 virtual servers.
Embedded within the Aviation Delivery Center, Astek teams automate the deployment of security tools (vulnerability detection, malware protection, IAM), remediate identified weaknesses, and contribute to a high-availability DevOps approach.
Astek sustainably enhances infrastructure security, boosts productivity through automation and monitoring, and optimizes operating costs through an international delivery model.
Application Modernization Partnership and Innovation Acceleration for a Major Hospital Group
Astek supports one of France’s largest university hospital groups in its digital transformation by taking ownership of Application Maintenance Services (AMS) for mature Hospital Information System applications.
Astek teams handle functional specifications, development, qualification, deployment, and maintenance of new and existing web and mobile applications, delivered in agile mode and integrated with core business databases. This outsourcing model delivers significant productivity gains, ensures excellent service continuity, and enables the development of scalable, sustainable applications—while freeing internal IT teams to focus on innovation.
Cyber Governance and Operational Resilience: Securing Growth for a Leading French Insurance Group
For a major insurance group, we led an offensive cybersecurity strategy designed to transform risk management into a business trust asset. The objective was to secure the Group’s digital innovation by industrializing cyber qualification across projects and hardening critical technology components.
By embedding cyber expertise from the design phase (Secure-by-Design) and automating third-party compliance analysis, we drastically reduced exposure to digital risks while accelerating brand time-to-market. This approach transformed a control function into a growth partner, ensuring that each new data flow or vendor relationship strengthens overall Group resilience without slowing operational cycles.
Access Security and Operational Resilience for a CAC 40 Leader
Astek operates a specialized resource center dedicated to the availability and security of network infrastructures for a flagship CAC 40 company, in partnership with a major cybersecurity provider.
The strategic objective is to guarantee full immunity of critical access through the management, evolution, and migration of the CyberArk solution. By fully rebuilding production platforms and simulating crisis scenarios (crash tests), our Level 2 and Level 3 support teams secure business continuity against cyber threats.
This trusted partnership turns security maintenance into a resilience lever—ensuring rapid incident response while strengthening application assets through continuous technological hardening.
Cloud & Cyber resilience strategy: multi-cloud security and microsegmentation for the banking sector
For a leading European banking group, the organization leads the security of cloud-native environments within a complex multi-cloud architecture (Azure & IBM). The mission transforms a traditional perimeter-based security model into a microsegmentation strategy (Illumio) combined with native filtering (ACLs, Security Groups). This approach ensures granular traffic protection, strict compliance of application migrations and precise governance of network resilience in the face of cyber threats.
Cybersecurity & Cloud Ops: Automating Critical Security and Ensuring Resilience at Massive Scale (15,000+ Servers)
For a global leader in technology distribution platforms, the Group secures and ensures the integrity of a critical infrastructure comprising more than 15,000 virtual servers.
By integrating a DevOps approach and a Follow-the-Sun operating model, the mission automates deployment of defensive layers (Qualys vulnerability detection, CrowdStrike EDR protection) and orchestrates privileged access management (CyberArk IAM). This guarantees absolute service continuity and proactive protection against cyber threats at global scale.