Atos Cyber Advent: 24 Days of Cybersecurity Insights
Discover new perspectives, benchmark your 2026 roadmap, and get inspired
As the year draws to a close, it’s the perfect moment for security leaders to step back, explore fresh ideas, and stress-test their plans for 2026. That’s what the Atos Cyber Advent is all about.
Behind each of the 24 doors, you’ll unlock new perspectives: Expect insights from our global SOCs and threat research teams, guidance from our cyber advisors, practical tools, and inspiring customer stories you can act on.
Use this calendar to discover new topics, benchmark your roadmap, and spark conversations with your teams. And yes, while the holiday period can still be a busy time for cyber adversaries, a few minutes of focused intelligence each day can help you enter 2026 more confident, prepared, and resilient.
Open a new door each day, and discover how a small dose of intelligence can make a big difference when it matters most.
Tap below to reveal today’s top tip!
1
December 1 – Cyber Security Tip #1
Explore Atos positioning in the ISG Provider Lens™ 2025 report
The ISG Provider Lens™ 2025 report provides an objective assessment of leading technology and cybersecurity service providers. It evaluates market positioning, strengths, and differentiators across multiple solution areas to support IT leaders in making informed decisions. This overview highlights Atos’s performance, strategic capabilities, and areas where our services deliver the strongest value. Download the full report summary to understand how our offerings align with evolving industry needs — and how we can support your organization’s digital transformation and security priorities.
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5
December 5 – Cybersecurity Tip #5
Discover how AI-powered TDIR and Virtual SOC Analyst keep threats in check—even during the holidays.
Cyber attacks are evolving—faster, smarter, and more disruptive than ever. Traditional SOC models aren’t enough. This infographic shows why end-to-end security is critical and how Atos Virtual SOC Analyst (VSA) combines AI-driven investigation with expert-guided response. The result? Faster response, reduced manual effort, and security teams free to focus on proactive defense and critical priorities.
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9
December 9 – Cybersecurity Tip #9
Peace of mind during the holidays takes preparation. 6 Phases of Ransomware Defense
Ransomware remains one of the most disruptive and costly cyber threats facing organizations today. This overview outlines the six phases of a comprehensive ransomware defense strategy — from preparation and detection to containment, eradication, recovery, and continuous improvement. Use this framework to strengthen your organization’s resilience and ensure you are ready before an incident occurs.
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3
December 3 – Cybersecurity Tip #3
Use this OT security checklist to help industrial teams secure operational assets before threats disrupt critical operations
OT environments face rising risks as legacy systems, limited patch cycles, and 24/7 operations create persistent vulnerabilities.
This checklist outlines the essential steps to proactively manage OT risks—from prioritizing critical assets to maintaining visibility, patch workflows, and real-time monitoring. Use it to strengthen resilience across industrial sites and reduce the chances of a vulnerability turning into a major incident.
Download the checklist to keep your operations secure, stable, and compliant.
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7
December 7 – Cyber Security Tip #7
Keep the lights on this winter. Strategies to secure critical infrastructure
Critical infrastructure powers everything we depend on — from energy and water to transportation, manufacturing, and healthcare. But as connectivity grows, so do the risks, with ransomware, APTs, insider threats, and supply chain attacks increasingly targeting these vital systems.
This whitepaper explores the evolving threat landscape and the technologies shaping the next era of defence, including AI-driven detection, shared intelligence, and post-quantum security. Discover practical actions to strengthen resilience, improve response, and build a cyber-aware culture across industrial environments. Download the whitepaper to explore the full insights.
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8
December 8 – Cybersecurity Tip #8
A quick dive into how passwordless tech blocks threats and boosts convenience instantly
In this video, we share the evolving story of why the industry is moving beyond passwords—and why the shift matters most during the high-stakes holiday season. Through real-world examples and forward-looking insights, we illustrate how going passwordless creates a safer, smoother experience for customers and employees alike, and why it represents the future of secure, effortless access.
Watch video
4
December 4 – Cyber Security Tip #4
Understand the human risk factors behind modern phishing attacks — including those generated by AI
Human behavior is a key factor in cybersecurity, with phishing as the most common entry point. Risk rises during holidays when staffing is low and users are distracted. AI-generated phishing makes threats harder to detect. This overview shows key warning signs and how targeted training and awareness can reduce risk. Download the visual guide to spot suspicious elements in AI-crafted phishing emails.
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6
December 6 – Cybersecurity Tip #6
Strengthen your multi-cloud security before small risks snowball into major incidents
With multi-cloud becoming the standard, organisations face growing challenges around configuration errors, identity gaps, and evolving compliance demands. As cloud estates expand, so does the need for consistent visibility, unified controls, and proactive defence.
Our unified cloud security approach supports you across the full lifecycle — from secure migration and architecture hardening to continuous monitoring, AI-driven threat detection, and 24×7 response. Get a clear framework to simplify governance, boost resilience, and prepare your cloud for an AI-ready 2026.
Read more to explore the complete approach.
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2
December 2 – Cybersecurity Tip #2
Download our Incident Response Playbook and master ransomware recovery with confidence
Ransomware can halt operations and damage reputations in minutes. Staying resilient means having more than reactive measures—it requires a clear, actionable Incident Response (IR) playbook.
This whitepaper shows you how to build one, using a ransomware scenario to illustrate every phase of response. Learn what an IR playbook is, why it matters, and how to create and leverage it for confidence under pressure, regulatory alignment, and streamlined crisis management. Turn cyber chaos into control.
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10
December 10 – Cyber Security Tip #10
Stronger passwords = safer holiday sales. Protect revenue and customer trust when it matters most.
During high-risk periods like Black Friday and Christmas, cybercriminals exploit spikes in online traffic to target weak credentials and compromise transactions. Our Strong Passwords Guide helps your team close those gaps fast—protecting revenue, safeguarding customer trust, and ensuring business continuity when sales matter most. Give your brand the resilience it needs this holiday season with practical, high-impact password practices.
Download now
13
December 13 – Cybersecurity Tip #13
Explore why cloud security needs to be managed differently in the age of AI — and how your organization can stay resilient.
Cloud security has entered a new era — one where default settings, over-permissioned identities, and rapidly advancing AI-led attacks make traditional protection insufficient. Organizations need strategy-driven, identity-aware, and continuously validated cloud security tailored to their environment. By layering native and third-party tools, leveraging expert testing, and preparing for worst-case scenarios, you build resilience that truly scales.
Explore the full perspective and actionable guidance in our latest blog.
More information
17
December 17 – Cybersecurity Tip #17
Discover how penetration testing ensures security across systems and infrastructure.
Modern organizations face the challenge of maintaining resilience while meeting future requirements and local priorities. This includes penetration testing of productive systems such as portals, web applications, and even physical infrastructure. By combining innovative approaches, updated training, and certified expertise, security partners help ensure reliability and quality in a highly competitive environment.
Explore the full success story and learn how continuous pentesting drives security excellence.
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12
December 12 – Cybersecurity Tip #12
Explore the threat actor playbooks shaping today’s most advanced supply chain compromises.
IT supply chain attacks have become one of the most effective entry points for sophisticated threat actors. This article analyzes the techniques used by groups behind recent high-impact incidents, including how they compromise suppliers, infiltrate update mechanisms, and exploit trust relationships within digital ecosystems. Using real-world cases and the MITRE ATT&CK framework, it breaks down their operational playbooks and highlights the indicators organizations should watch for. Learn how to assess your exposure and strengthen resilience across your technology and supplier landscape.
More information
15
December 15 – Cybersecurity Tip #15
Voice deepfakes are smarter than ever—stay one step ahead and protect yourself from fraud
This video explores the latest advancements in AI-powered voice deepfakes, revealing how cybercriminals are using them to convincingly impersonate trusted individuals. It explains why traditional warning signs often fail and provides practical strategies to defend yourself and your business from these sophisticated attacks, helping protect both financial and reputational security.
Watch the video
11
December 11 – Cyber Security Tip #11
How to use regulatory challenges as a springboard for enterprise-wide innovation.
How do you secure and streamline identity management for 300,000+ users across 172 countries and thousands of applications? For the world’s largest food and beverage company, compliance wasn’t just a checkbox – it became the foundation for digital transformation. Discover how a global program enabled secure, compliant operations at scale. Curious about the result? Explore the full story!
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14
December 14 – Cybersecurity Tip #14
Explore why critical infrastructure resilience matters more than ever as digital and physical systems collide in an era of rising cyber threats.
As essential services become increasingly digital, the systems that power our daily lives — from energy and water to healthcare and transport — are operating in a rapidly expanding threat landscape. Today’s cyber incidents are no longer limited to data loss; they can trigger real-world disruption with widespread consequences. Our new infographic highlights how industrial cyberattacks are evolving, why resilience is now the benchmark for security, and how emerging technologies are redefining defense strategies.
Explore the infographic and see what helps critical infrastructure operators strengthen resilience, continuity, and protection.
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18
December 18 – Cybersecurity Tip #18
Explore how cloud security is evolving and why sovereignty, AI and API protection are now essential for building a resilient cloud foundation.
Cloud security is entering a new phase, and the changes are happening faster than many organizations expect. New pressures, smarter threats and expanding digital ecosystems are reshaping what it takes to stay resilient, compliant and in control.
This video reveals the developments that will shape your cloud strategy in 2025 and why now is the moment to reassess your approach.
Watch the video and explore how to future-proof your cloud security.
Watch the video
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December 16 – Cybersecurity Tip #16
Get ready to boost your organization’s digital resilience this season. Today’s Cyber Advent Calendar insight unwraps a concise video overview of the Atos cybersecurity portfolio—showcasing how our end-to-end capabilities help you stay protected, prepared, and proactive. From threat detection to secure cloud foundations, discover the essential building blocks that strengthen your cyber posture all year long.
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