Cyber Essentials for Fintech: Securing Equity Trading & OMS Systems

In the high-velocity world of Fintech, where equity trading happens in milliseconds and billions of pounds move across digital ledgers every day, security isn’t just a "nice-to-have": it is the bedrock of the business. For firms managing complex Order Management Systems (OMS) such as Figaro, the stakes are exceptionally high. A single breach doesn’t merely result in data loss; it can trigger market disruption, regulatory fines from the FCA, and a sharp collapse in investor trust.

As Fintech firms continue to scale, the UK government-backed Cyber Essentials scheme has emerged as the definitive baseline for digital security. However, applying these controls to a specialised trading environment requires more than a "tick-box" exercise. It calls for a proper understanding of how security controls interact with trade lifecycles, platform stability, and data integrity. That is particularly true where Figaro OMS operates on the IBM i platform, a system long respected for its resilience, stability, and security pedigree. IBM i running on Power Systems has earned its reputation for being remarkably robust, but even legendary platforms do not configure themselves. To meet modern compliance standards, expert configuration and governance are still absolutely required.

The Fintech Threat Landscape: Why Trading Systems are Targets

Financial services remain one of the most targeted sectors for cybercrime globally. For a firm operating an equity trading OMS, the threat model is multifaceted. Ransomware attacks that freeze order books, credential theft aimed at senior traders, and sophisticated API exploits are no longer theoretical risks: they are live operational concerns.

Systems such as Figaro OMS are the central nervous system of a trading operation. Figaro OMS operates on the IBM i platform, typically running on IBM Power Systems, which is well known in enterprise circles for outstanding uptime, strong object-level security, and serious resilience under pressure. That underlying platform gives firms an exceptionally solid foundation, but it does not remove the need for disciplined security practice around users, network access, interfaces, and change control. Because these systems are interconnected with market gateways (FIX) and banking interfaces, they represent a high-value target for both external attackers and malicious insiders. Ensuring the integrity of the data flowing through these systems is paramount. If a trade record is altered or an order is injected through a compromised API, the financial and reputational fallout can be catastrophic. In Fintech, a quiet system is usually a good sign; a surprisingly quiet one often deserves immediate scrutiny.

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Cyber Essentials: The Five Pillars of Fintech Security

The Cyber Essentials scheme focuses on five core technical controls. For Fintech firms, implementing these controls through professional IT consultancy helps ensure that trading infrastructure is resilient against the vast majority of common internet-based threats.

1. Firewalls and Internet Gateways

In a trading environment, network segmentation is critical. Firewalls should not only protect the corporate network but also isolate the OMS and FIX gateways from the general office environment. By restricting inbound connectivity to specific, approved IP ranges and using Web Application Firewalls (WAFs) for APIs, firms can prevent unauthorised access to the trading core.

2. Secure Configuration

Default settings are a gift to hackers. Secure configuration involves hardening trading servers and databases: disabling unused services, changing default passwords, and ensuring that OMS administrative interfaces are accessible only through secure, encrypted channels. For firms using Figaro on IBM i, this also means properly configuring user profiles, authority levels, exit points, network services, audit logging, and administrative access on the underlying platform. IBM i is famously resilient, but Cyber Essentials is not awarded for having a strong platform alone; it depends on that platform being configured and managed to modern standards by people who know exactly where the sharp edges are.

3. User Access Control

The principle of "Least Privilege" is vital. Not everyone in the firm needs access to the OMS. Access control should be granular, with separate roles for traders, compliance officers, and IT support. Most importantly, Multi-Factor Authentication (MFA) must be non-negotiable for any interactive access to the trading platform or remote management tools. If everyone has admin rights, it is not a flexible culture; it is a security incident waiting for a diary slot.

4. Malware Protection

While low-latency trading workloads can sometimes be sensitive to heavy antivirus software, modern behaviour-based detection provides protection without sacrificing performance. Ensuring that every endpoint, from a trader's terminal to the back-office server, is protected against malicious code is a fundamental requirement of Cyber Essentials.

5. Patch Management

Software vulnerabilities are among the most common entry points for ransomware. Fintech firms must maintain a rigorous patching schedule for operating systems, databases, and the OMS software itself. Critical security updates should be applied within 14 days to remain compliant with Cyber Essentials standards.

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Data Integrity and Figaro OMS Integrations

While Cyber Essentials provides the baseline, securing a Figaro OMS integration requires a specialised focus on data integrity. This is especially relevant where Figaro OMS sits on IBM i, because the platform’s built-in resilience and mature security model provide an excellent foundation for dependable financial operations. The trade lifecycle, from order entry to execution and settlement, relies on the "maker-checker" (or four-eyes) principle.

Cybersecurity in this context means ensuring that the digital audit trail remains immutable. If an unauthorised user gains access to the system, can they alter trade history or change risk limits? A robust cyber security strategy integrates Cyber Essentials controls with application-level security. This helps ensure that even if a perimeter is breached, the integrity of the trading data remains uncompromised.

Furthermore, Fintech firms must consider the security of their third-party integrations. Market data feeds, clearing house connections, and regulatory reporting tools all represent potential points of failure. Cyber Essentials certification sends a clear signal to these partners that your firm takes its security obligations seriously, which makes due diligence conversations rather less dramatic than they might otherwise be.

From Compliance to Operational Resilience

For UK Fintechs, the regulatory landscape is shifting from mere "compliance" to "operational resilience". The FCA and PRA expect firms not only to have security controls in place but also to demonstrate that they can continue to provide important business services, such as equity trading, through a severe cyber incident.

Cyber Essentials acts as the starting line for this journey. By securing the technical foundation, firms can then build more advanced resilience strategies, such as automated failovers, immutable backups, and real-time anomaly detection. For firms running IBM i on Power Systems, that resilience story is often stronger than on many mainstream platforms, but regulators still expect evidence of proper configuration, access control, patch governance, and documented operational discipline. When these controls are managed by an expert IT support partner, leadership teams can focus on growth and market strategy, knowing their infrastructure is defended by industry-standard protocols.

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The Competitive Edge of a Secure Firm

In a crowded Fintech market, security is a competitive differentiator. Institutional investors and high-net-worth clients are increasingly sophisticated; they perform deep-dive technical audits before committing capital. Holding a Cyber Essentials certification, and being able to demonstrate its application across your OMS and trading systems, proves that your firm is a mature, reliable player in the financial ecosystem.

It also simplifies the path to more advanced certifications such as ISO 27001 or SOC 2. Because Cyber Essentials aligns with the technical requirements of these broader frameworks, it provides a practical quick win that delivers immediate protection while laying the groundwork for long-term governance.

Partnering for Security Excellence

Securing a complex Fintech environment is a continuous process, not a one-time project. As trading technologies evolve and threats become more sophisticated, your security posture must adapt. Evestaff IT Support and Consultancy specialises in helping financial firms navigate this landscape. From achieving Cyber Essentials certification to managing the security of Figaro OMS integrations, we provide the technical expertise required to protect your assets and your reputation.

For organisations that need senior technology leadership without committing to a permanent executive hire, Evestaff also provides a fractal IT director service. This gives firms access to specialised, high-level strategic leadership on a flexible basis, delivering the authority, commercial judgement, and technical oversight of a full-time IT Director without the overhead. That service is strengthened by a network of trusted channel partners, allowing clients to benefit from David’s practitioner-led authority while also drawing on the technical depth, delivery capacity, and specialist resources needed for large-scale execution and niche requirements. It is particularly valuable for Fintech businesses that need help prioritising security investment, aligning compliance with operational resilience, and making sure OMS, infrastructure, and supplier decisions support the wider business strategy rather than becoming expensive distractions.

While we lead with IT, our focus remains on delivering expert consultancy, IBM i management, and strategic technology leadership that helps Fintech firms stay secure, resilient, and commercially sharp.

Whether you are an emerging start-up or an established trading house, ensuring your equity trading systems are properly locked down may be the most important investment you make this year.

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Keywords: Cyber Essentials Fintech, OMS Security, Figaro OMS Integration, IBM i security, IBM Power Systems resilience, Equity Trading Cyber Security, IT Consultancy UK, Financial Data Integrity, FCA Compliance IT, IBM i management, fractal IT director service, itandconsultancy.co.uk.

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