If you have been researching IT outsourcing options, you have almost certainly encountered both terms: MSP (Managed Service Provider) and MSSP (Managed Security Service Provider). Many providers use them interchangeably in their marketing. They should not — because the two services are fundamentally different, and choosing the wrong one for your business needs could leave you dangerously exposed.

What Is an MSP?

A Managed Service Provider takes responsibility for managing and maintaining your IT infrastructure. The core focus is availability and performance — keeping your systems running, your users productive, and your technology up to date.

Typical MSP services include:

  • IT helpdesk and end-user support
  • Network monitoring and management
  • Server and workstation management
  • Patch management and software updates
  • Cloud infrastructure management (Microsoft 365, Azure, AWS)
  • Backup and disaster recovery
  • Hardware procurement and lifecycle management

An MSP is essentially your outsourced IT department. They keep the lights on.

What Is an MSSP?

A Managed Security Service Provider focuses specifically on cybersecurity. Where an MSP is concerned with uptime and productivity, an MSSP is concerned with threat detection, prevention, and response.

Typical MSSP services include:

  • 24/7 Security Operations Centre (SOC) monitoring
  • SIEM (Security Information and Event Management) — collecting and analysing security events across your environment
  • EDR (Endpoint Detection and Response) — advanced threat detection on every device
  • Vulnerability management and penetration testing
  • Incident response — containing and remediating active attacks
  • Threat intelligence — proactive identification of emerging threats relevant to your sector
  • Compliance management (GDPR, ISO 27001, Cyber Essentials, PCI-DSS)
  • Email security and phishing simulation

An MSSP is your outsourced security team. They protect you from threats.

The Critical Difference

Here is the simplest way to understand the distinction: an MSP will notice that your server is down. An MSSP will notice that an attacker has been quietly exfiltrating data from that server for the past three weeks before it went down.

MSPs are reactive to infrastructure problems. MSSPs are proactive against security threats. Both are valuable — but they solve different problems.

Do You Need an MSP, an MSSP, or Both?

You probably need an MSP if:

  • You do not have an internal IT team and need day-to-day IT support
  • Your primary concern is keeping systems running and users productive
  • You are a small business with limited IT complexity
  • You have basic security needs covered by standard tools (antivirus, firewall, MFA)

You probably need an MSSP if:

  • You operate in a regulated sector (financial services, healthcare, legal)
  • You handle sensitive customer data or intellectual property
  • You have compliance obligations (GDPR, PCI-DSS, ISO 27001, Cyber Essentials Plus)
  • You have experienced a security incident in the past
  • Your business would suffer significant financial or reputational damage from a breach
  • You need 24/7 threat monitoring — not just 9-to-5 IT support

You probably need both if:

  • You are a mid-market business without an internal IT or security team
  • You want a single provider accountable for both IT performance and security posture
  • You want to avoid the complexity of managing two separate vendor relationships

The Case for a Combined MSP + MSSP Provider

The most effective arrangement for most UK businesses is a single provider who delivers both MSP and MSSP capabilities under one contract. This eliminates the finger-pointing that occurs when an IT issue has a security dimension — "that is the MSP’s problem" vs "that is the MSSP’s problem" — and ensures that your IT and security teams (even if they are both outsourced) are working from the same playbook.

At Baycop, we deliver both under a single SLA. Your account manager has visibility across both your IT performance and your security posture, and our SOC team works directly with our infrastructure engineers when an incident requires both a security response and an IT recovery.

Explore our full MSP and MSSP service suite, or book a free assessment to discuss which combination is right for your business.