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Belgium 13-1-26 Squad Only Virtual english

Moving Legacy Systems to the Cloud Efficiently : Balancing cost, risk, and continuity in complex migrations

Migrating legacy systems to the cloud remains one of the toughest balancing acts in IT. Every choice affects stability, cost, and trust at once, and what starts as a modernisation effort quickly turns into a negotiation between ambition and reality. Suddenly budgets rise, dependencies appear late, and timelines tighten as old architectures collide with new expectations. In the end, success depends on sequencing, ownership, and aligning business priorities with infrastructure limits, and not only on technical readiness. Making it work requires more than a plan on paper. Knowing which systems genuinely belong in the cloud, which can wait, and which should stay put shapes the entire roadmap and defines its success. Each refactoring decision sets the level of future flexibility, but it also drives cost and risk. The trade-offs between speed, sustainability, and resilience only become clear once migration begins and pressure builds. Let’s discuss how to plan migrations that stay on track, manage hidden dependencies, and handle downtime with confidence. Let’s also discuss how governance, testing, and vendor coordination keep progress visible and credible. Are you in? A closed conversation for those who turn cloud migration from a disruption into a long-term advantage.

Belgium 20-1-26 All Members Physical english

The CIO as Investor - CIONET Belgium Annual Event

CIOs today are being judged less as technology leaders and more as portfolio managers. Every euro is under scrutiny. Boards and CFOs demand lower run costs, higher efficiency, and clear ROI from every digital initiative. Yet, they also expect CIOs to place bets on disruptive technologies that will keep the enterprise competitive in five years. This constant tension is redefining the role. In this session, we go beyond FinOps and cost reporting to tackle the strategic financial dilemmas CIOs face.

Belgium 22-1-26 Invitation Only Virtual english

AI-Driven Development: Redesigning workflows, responsibilities, and trust in the age of automation

AI coding assistants entered development teams quietly, but their impact grows by the day. What started as autocomplete now shapes architecture decisions, documentation, and testing. And when productivity gains are visible, so are new risks: security blind spots, uneven quality, and the slow erosion of shared standards. Teams move faster, but not always in the same direction. The challenge has become integration rather than adoption. And new questions have risen: how do you blend automation into established practices without losing oversight? When is human review still essential, and what should the rules of collaboration between developer and machine look like? As AI tools learn from proprietary code, where do responsibility and accountability sit? Let’s talk about how to redefine those workflows, balancing creativity with control, and protecting code quality in a hybrid human-AI environment. A closed conversation on where AI accelerates progress, where it introduces new debt, and how development culture must evolve to stay credible.

January 13, 2026 Squad Session Invitation Only Virtual english

Moving Legacy Systems to the Cloud Efficiently : Balancing cost, risk, and continuity in complex migrations

January 22, 2026 Squad Session Invitation Only Virtual english

AI-Driven Development: Redesigning workflows, responsibilities, and trust in the age of automation

January 27, 2026 Squad Session Invitation Only Physical english

Zero Trust in Reality : Making segmentation, identity, and access work in complex environments

Zero Trust sounds simple on paper: trust no one, verify everything. But once you start implementing it, the fun begins. Legacy systems, hybrid networks, and human habits don’t read the manual. The idea is solid; the execution, not so much.

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Trend Micro powers NHS cloud pioneer SLAM with multilayered security

South London and Maudsley NHS Foundation Trust (SLAM) has significantly improved its security posture with Trend Micro. Trend Micro’s Deep Security enables SLAM to effectively protect its infrastructure from threats such as WannaCry. This has not only improved security, but also accelerated cloud adoption and led to cost savings.

OVERVIEW

The South London and Maudsley NHS Foundation Trust (SLAM) is a London-based NHS trust specializing in mental health. It consists of four campus sites and over 70 community sites, with more than 5,000 employees. Stuart MacLellan is the head of operations for digital service at SLAM, where his team manages thousands of endpoints leveraging private and public cloud infrastructures.

CHALLENGES

Prior to choosing Trend Micro, MacLellan and his team were constantly challenged by high volumes of malware and viruses on the network, which led to system outages on occasion and ultimately a poor customer experience. In mission-critical environments like hospitals, this kind of impact is unsustainable in the delivery of critical frontline services.

At the same time, SLAM was evolving its infrastructure by adopting cloud services. It was the first NHS trust to migrate to Microsoft® Office 365® and moved to Microsoft® Azure® for Infrastructure as a Service (IaaS) on the first day of its launch in the UK. MacLellan recognized the need for a cloud-ready product suite to provide unified protection against zero-day and emerging threats across physical and hybrid cloud environments. He also required comprehensive threat detection at the network layer, which could be viewed holistic.

WHY TREND

For six years, SLAM has relied on Trend Micro to protect its 5,000 employees and clients using Trend Micro™ Smart Protection Suites, a multi-layered product approach to security that includes OfficeScan™ endpoint solution and InterScan™ Web Security Virtual Appliance. That superior performance and ability to root out threats gave MacLellan the confidence he needed to deepen the partnership with Trend Micro to include enhanced cloud and network security.

SLAM enhanced its protection with Trend Micro™ Deep Security™, Deep Discovery™ and Cloud App Security to secure their hybrid cloud data center, network, and cloud application layer.

"We’re a small team and run security as a linear layer across all our departments, so ease-of-use was essential. With Deep Security you get a holistic view from endpoint to servers and from cloud to network inspection, which was exactly what we needed."

Stuart MacLellan - Head of Operations for Digital Service, SLAM

SOLUTION

Deep Security is Trend Micro’s flagship data center security platform, offering unparalleled protection for physical and hybrid cloud environments, all from a single console. Deep Security is optimized for many of the most popular cloud platforms on the market, including Microsoft Azure.

It offered SLAM:

An “as-a-service” delivery model with consumption-based billing available through the AWS Marketplace
Host-based intrusion prevention system (IPS) that scales with your cloud to offer continuous protection
Automatic policy creation and management to ensure workloads are never left unprotected
Full integration with the Azure Security Center to monitor workloads and provide security alerts through the Azure portal
Automated virtual patching
The ability to apply layered security controls such as integrity monitoring, intrusion prevention, content filtering, and behavioral analysis, to the right place at the right time
Network level (intrusion detection system/IPS) and file integrity monitoring (FIM) to detect and prevent threats
Accelerated compliance with Payment Card Industry Data Security Standard (PCI DSS) and more, thanks to ongoing audit reports and maximum protection

Deep Discovery is Trend Micro’s award-winning advanced threat detection tool. Powered by XGen™ security, it’s designed to monitor all ports and over 105 different network protocols. This allows you to discover advanced threats and targeted attacks moving in and out of the network and laterally across it.

Cloud App Security offers comprehensive protection in Office 365 environments, using sandbox analysis to spot and block ransomware, business email compromise (BEC), and other advanced threats. Over the past two years it has stopped over six million threats not spotted by Microsoft.

RESULTS

SLAM has already seen a range of benefits resulting from its decision to deepen its investment with Trend Micro. MacLellan was particularly impressed by the ability of Deep Security to offer management capabilities from a single pane of glass.

“We’re a small team and run security as a linear layer across all our departments, so ease-of-use was essential. With Deep Security you get a holistic view from endpoint to servers and from cloud to network inspection, which was exactly what we needed,” MacLellan explains. “Although we added more protection to our organization through the various suites, the centralized pane of glass Trend Micro offers hasn’t added any management overheads. It’s more efficient than having four different vendors in place.”

What’s more, Deep Security kept the organization safe from WannaCry while SLAM’s counterparts in the wider NHS were less fortunate. An estimated 19,000 operations and appointments were cancelled as a result of the WannaCry ransomware attack in May 2017.

“We had protection through virtual patching and got assurance through talking to Trend Micro support. It was a very controlled and managed experience for SLAM,” says MacLellan.

That protection has been matched by Trend Micro™ Deep Discovery™ Inspector and its ability to hunt down threats at the network layer, as well as Cloud App Security, which blocks malware targeting SLAM’s Office 365 platform.

Most importantly, having an effective, optimized layer of security in place has helped SLAM accelerate its adoption of cloud services to become a more agile and efficient organization. This has generated significant cost savings through improved capacity management, whilst driving a shift from being “a reactive IT department to a proactive, consultative department that is working to make the business better.”

"Although we added more protection to our organization through the various suites, the centralized pane of glass Trend Micro offers hasn’t added any management overheads. It’s more efficient than having four different vendors in place."

Stuart MacLellan - Head of Operations for Digital Service, SLAM

WHAT'S NEXT

With Trend Micro providing peace of mind to the IT team, they now have the time to look at more strategic plans, which will further help to reduce cyber risk. Improving incident response is high on the list, especially in light of the new General Data Protection Regulation (GDPR), says MacLellan.

Technologies

Trend Micro Cloud App Security™ Trend Micro™ Deep Security™ Trend Micro™Deep Discovery™

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Healthcare Circle

Digital Transformation is redefining the future of health care and health delivery. All stakeholders are convinced that these innovations will create value for patients, healthcare practitioners, hospitals, and governments along the patient pathway. The benefits are starting from prevention and awareness to diagnosis, treatment, short- and long-term follow-up, and ultimately survival. But how do you make sure that your working towards an architecturally sound, secure and interoperable health IT ecosystem for your hospital and avoid implementing a hodgepodge of spot solutions? How does your IT department work together with the other stakeholders, such as the doctors and other healthcare practitioners, Life Sciences companies, Tech companies, regulators and your internal governance and administrative bodies?

Telenet Business Leadership Circle

The Telenet Business Leadership Circle powered by CIONET, offers a platform where IT executives and thought leaders can meet to inspire each other and share best practices. We want to be a facilitator who helps you optimise the performance of your IT function and your business by embracing the endless opportunities that digital change brings.

Les Rencontres

Découvrez la dynamique du leadership numérique aux Rencontres de CIONET, le programme francophone exclusif de CIONET pour les leaders numériques en Belgique, rendu possible grâce au soutien et à l'engagement de nos partenaires de programme : Deloitte, Denodo et Red Hat. Rejoignez trois événements inspirants par an à Liège, Namur et en Brabant Wallon, où des CIOs et des experts numériques francophones de premier plan partagent leurs perspectives et expériences sur des thèmes d'affaires et de IT actuels. Laissez-vous inspirer et apprenez des meilleurs du secteur lors de sessions captivantes conçues spécialement pour soutenir et enrichir votre rôle en tant que CIO pair. Ne manquez pas cette opportunité de faire partie d'un réseau exceptionnel d'innovateurs numériques !

Female Leadership Circle

CIONET is committed to highlighting and celebrating female role models in IT, Tech & Digital, creating a leadership programme that empowers and elevates women within the tech industry. This initiative is dedicated to showcasing the achievements and successes of leading women, fostering an environment where female role models are recognised, and their contributions can ignite progress and inspire the next generation of women in IT. Our mission is to shine the spotlight a little brighter on female role models in IT, Tech & Digital, and to empower each other through this inner network community.