Microsoft Defender for Business: Setup and Managed Service
AMVIA delivers this service as part of our managed IT portfolio for UK businesses. Fixed monthly pricing, no hidden fees, and a team that understands your business.
Microsoft Defender for Business provides SMEs with enterprise-grade endpoint protection — including EDR, antivirus, firewall management, and attack surface reduction — at £3/user/month. AMVIA configures and manages Defender for Business for UK companies, ensuring policies are correctly applied, alerts are monitored, and incidents are responded to by our UK SOC team.
Why This Matters
What's Included
Everything you get with this managed service.
Proactive Protection
Continuous monitoring and threat detection to prevent incidents before they impact your business.
Expert Management
UK-based engineers handle configuration, updates, and incident response — so you don't have to.
Regular Reporting
Monthly reports on security posture, incidents handled, and recommended improvements.
Dedicated Support
Direct access to your account team for questions, changes, and escalations.
How We Deliver This Service
Assessment
We audit your current setup and identify gaps.
Design
We design a solution around your specific requirements.
Deployment
We implement with minimal disruption to your operations.
Ongoing Management
Continuous monitoring, updates, and support.
Why Choose AMVIA for Microsoft Defender for Business
UK-based specialists delivering measurable results for businesses of every size.
Sheffield-Based, UK-Focused
Our engineering and support team operates from Sheffield. We understand UK compliance requirements, network infrastructure, and the specific challenges facing British businesses.
Accredited & Certified
AMVIA holds Cyber Essentials Plus, ISO 27001, and Microsoft Gold Partner status — giving you confidence that our services meet the highest UK security and quality standards.
1,200+ UK Businesses Protected
We manage IT and security for over 1,200 UK businesses across sectors including legal, finance, healthcare, and professional services. Our track record speaks for itself.
Fast, Responsive Support
Critical issues are responded to within one hour. Our helpdesk is available by phone, email, and portal — with dedicated account managers who know your environment.
Client testimonial coming soon — AMVIA protects over 1,200 UK businesses.
— AMVIA Client
Get Started
Fixed monthly pricing. No lock-in contracts.
Frequently Asked Questions
Yes. 50% of small businesses (10-49 employees) reported a cybersecurity breach in 2025. UK small businesses face around 65,000 hack attempts daily, with approximately 4,500 successful breaches. More than a quarter of SMBs say a single cyber attack could put them out of business entirely.
Start by enabling MFA for all accounts, disabling legacy authentication protocols, and configuring DMARC/DKIM/SPF for email. Review conditional access policies — many are left in report-only mode providing no enforcement. Consider upgrading to Business Premium for advanced security features.
Microsoft Defender's online detection rate is 88.6% — significantly lower than top-tier products at 97-99%. Defender provides adequate baseline protection but independent testing shows detection gaps. For businesses with higher risk profiles, layered security with third-party MDR is recommended.
No. Microsoft 365 security settings are not all enabled by default. Recommended security settings must be actively configured. Legacy authentication protocols, which do not support MFA, remain enabled in many tenants. Organisations that disable legacy authentication experience 67% fewer account compromises.
Microsoft Secure Score measures your organisation's security posture within Microsoft 365. It provides recommendations ranked by impact and effort. Improving your Secure Score helps protect against the 1,360 vulnerabilities Microsoft patched in 2024 — an 11% increase from the previous record.
Ready to Talk?
Get a tailored quote for your business.
Related Resources
MDR vs EDR: Which Does Your Business Need?
Compare managed detection vs endpoint detection
How Much Does Managed Cybersecurity Cost?
UK pricing guide for managed cybersecurity services
M365 Business Premium vs Standard
Security differences between M365 tiers
How to Set Up MFA in Microsoft 365
Step-by-step MFA setup guide