Managed Cybersecurity Services for UK Businesses: 24/7 Protection from AMVIA

Why SMEs Need Managed Cybersecurity

The cyber threat facing UK SMEs is real and persistent. Phishing campaigns, ransomware, and credential theft do not discriminate by business size — attackers target SMEs precisely because they often lack the security controls that larger organisations maintain. A successful attack can cause significant financial loss, operational disruption, and reputational damage.

47% rise in attacks evading Microsoft's native defences and secure email gateways (SEGs) — KnowBe4 2025 Phishing Benchmark Report. (Microsoft)

Stolen or compromised credentials were the initial attack vector in 22% of data breaches in 2024 — the single largest cause of breaches, surpassing phishing (16%) and software vulnerabilities (Verizon DBIR 2025). (ITPro)

Security Management is the fastest-growing MDM segment, driven by mobile ransomware and phishing threats (Yahoo Finance MDM report, 2025). (Uk)

Building an in-house cybersecurity capability — security engineers, 24/7 monitoring, threat intelligence tools, incident response procedures — is beyond the reach of most SMEs. Managed cybersecurity closes that gap by providing the people, processes, and technology as a service, at a cost that scales with business size.

What AMVIA's Managed Cybersecurity Covers

AMVIA's managed cybersecurity service is structured around the controls that have the greatest practical impact for SMEs, based on the NCSC's Cyber Essentials framework and Cyber Essentials Plus requirements. The core components are endpoint protection, email security, identity and access management, patch management, and security monitoring.

Each component is configured to AMVIA's security baseline, monitored via AmviaIQ, and reviewed monthly. Where your environment has existing technology — Microsoft 365, existing firewalls, current endpoint software — AMVIA integrates with and builds on what is already in place rather than replacing everything.

Endpoint Detection and Response

All managed endpoints — Windows laptops, desktops, and servers — are enrolled with Microsoft Defender for Business or, where a higher level of detection is required, Huntress EDR. These tools provide real-time threat detection, behavioural analysis, and automated response capability that goes beyond traditional antivirus.

Security alerts from all endpoints are aggregated in AmviaIQ. AMVIA's security team reviews alerts, triages incidents, and carries out investigation and containment. Clients receive incident reports for any significant events, detailing what was detected, what action was taken, and any follow-up recommendations.

Email Security

Email is the most common attack vector for UK businesses. AMVIA deploys Barracuda Email Security Gateway in front of Microsoft 365 mailboxes, providing multi-layer filtering for phishing, malware, impersonation, and business email compromise. DMARC, DKIM, and SPF are configured to protect both inbound and outbound email.

Where clients want to build staff resilience alongside technical controls, AMVIA can add phishing simulation and security awareness training to the service, testing staff with realistic simulated attacks and providing targeted training to those who fail.

Identity and Access Management

Most breaches involve compromised credentials. AMVIA configures multi-factor authentication (MFA) across all Microsoft 365 accounts, applies Conditional Access policies to enforce device compliance and block legacy authentication, and monitors for risky sign-in events. Privileged accounts receive additional protection through Privileged Identity Management (PIM).

Regular access reviews are conducted to identify and remove stale accounts, over-privileged users, and unnecessary guest access — all of which represent potential attack surfaces if left unmanaged.

Vulnerability Management

Known vulnerabilities in operating systems, applications, and firmware are among the most commonly exploited weaknesses. AMVIA's managed patching service keeps Windows devices, Microsoft 365 applications, and third-party software current within defined patching windows. Vulnerability scanning identifies any gaps between the patching schedule and actual device posture.

Critical security patches are prioritised and deployed within timeframes aligned with Cyber Essentials requirements. Monthly reports confirm patch compliance across all managed devices.

Compliance and Reporting

Many SMEs face compliance obligations — Cyber Essentials renewal, ISO 27001 requirements, FCA operational resilience expectations, or client contractual requirements. AMVIA's managed cybersecurity service is designed to support these requirements, maintaining the documentation and controls evidence needed for certification and audit.

Monthly security reports cover threat activity, patch compliance, security incidents, and outstanding recommendations. Quarterly reviews with your account manager allow AMVIA to align the service with any changes to your business or compliance requirements.

Incident Response

If a security incident occurs — a confirmed breach, ransomware infection, or account compromise — AMVIA provides incident response support as part of the managed service. This includes containment, investigation, evidence preservation, and advice on notification obligations under UK GDPR and the Cyber Essentials scheme where relevant. A post-incident review identifies root cause and recommends control improvements to reduce recurrence risk.