MSSP vs MSP: What Is the Difference and Which Do You Need?

The terms MSP and MSSP are often used interchangeably, but they represent fundamentally different services. Confusing the two can leave your business with gaps in either IT management or cybersecurity — or both.

Here is a clear breakdown of what each does, when you need one or both, and how to evaluate providers.

What an MSP Does

A Managed Service Provider (MSP) manages your overall IT environment. Their scope covers:

• Helpdesk support — Resolving user issues and requests
• Server management — Monitoring, patching, and maintaining servers
• Network management — Managing switches, routers, firewalls, and WiFi
• Desktop management — Workstation imaging, patching, and support
• Microsoft 365 management — Email, Teams, SharePoint administration
• Backup management — Monitoring and managing backup systems
• Basic cybersecurity — Antivirus deployment, MFA setup, basic patch management
• Vendor coordination — Managing relationships with ISPs, software vendors, and hardware suppliers

The MSP is your IT department for hire. They handle the day-to-day operational management of your technology.

MSP Cybersecurity Capability

Most MSPs include basic cybersecurity in their service:

• Antivirus/EDR deployment
• MFA configuration
• Basic patch management
• Firewall management
• Security awareness training

However, most MSPs do not have: - A Security Operations Centre (SOC) - 24/7 threat monitoring and detection - SIEM (Security Information and Event Management) capability - Threat hunting capability - Incident response retainer - Vulnerability scanning and penetration testing - Advanced forensic analysis

This is where the MSSP fills the gap.

What an MSSP Does

A Managed Security Service Provider (MSSP) focuses exclusively on cybersecurity. Their scope covers:

• 24/7 Security Operations Centre (SOC) — Continuous monitoring of your environment for threats
• SIEM management — Collecting and analysing security logs from all your systems
• Threat detection and response — Identifying and responding to security incidents in real-time
• Vulnerability management — Regular scanning, assessment, and remediation tracking
• Penetration testing — Simulated attacks to identify weaknesses
• Incident response — Expert support when a security incident occurs
• Compliance management — Ensuring alignment with Essential 8, ISO 27001, and industry regulations
• Threat intelligence — Staying ahead of emerging threats targeting Australian businesses
• Security architecture advisory — Designing and implementing security controls

The MSSP is your security team for hire. They focus on protecting your business from cyber threats.

MSSP vs MSP: Side-by-Side Comparison

Function	MSP	MSSP
Helpdesk support	✅ Primary focus	❌ Not included
Server management	✅ Full	❌ Not included
Network management	✅ Full	❌ Not included
Microsoft 365 management	✅ Full	❌ Not included
Basic cybersecurity	✅ Included	⚠️ Part of service
24/7 threat monitoring	❌ Limited	✅ Primary focus
SIEM/SOC capability	❌ Rare	✅ Core capability
Threat hunting	❌ Not available	✅ Included
Vulnerability scanning	⚠️ Basic	✅ Advanced
Incident response	⚠️ Limited	✅ Expert
Compliance management	⚠️ Basic	✅ Comprehensive
Penetration testing	❌ Not available	✅ Included

Do You Need Both?

You Only Need an MSP If:

• You are a small business (under 20 users) with standard IT requirements
• Your compliance obligations are minimal
• You handle no sensitive or regulated data
• Your cyber risk profile is low

You Need an MSP + MSSP If:

• You have 50+ users or complex IT environments
• You handle sensitive data (financial, health, personal information)
• You have compliance requirements (Essential 8, APRA CPS 234, ISO 27001)
• You are a government contractor or handle government data
• You have experienced a security incident
• Your cyber insurance requires enhanced security controls

You Might Only Need an MSSP If:

• You have a mature internal IT team that handles operations
• You need specialist security capability your internal team lacks
• Your primary concern is security, not general IT management

How MSPs and MSSPs Work Together

In most Australian businesses, the MSP and MSSP operate as complementary providers:

The MSP handles: - Day-to-day IT operations - User support and helpdesk - Infrastructure management - Routine patching and maintenance

The MSSP handles: - 24/7 security monitoring - Threat detection and response - Security assessments and testing - Compliance reporting - Incident response

Coordination is critical: - The MSP and MSSP must have clear communication channels - Escalation paths must be defined for security incidents - Both providers must have access to relevant environment data - Regular joint reviews should be conducted

If your MSP and MSSP do not cooperate effectively, security gaps will emerge.

Evaluating an MSSP

When selecting an MSSP in Australia, evaluate:

1. SOC Capability

• Do they operate a 24/7 SOC?
• Is the SOC staffed by Australian-based analysts?
• What tools does the SOC use (SIEM platform, EDR, threat intelligence)?
• What are the SOC's mean time to detect (MTTD) and mean time to respond (MTTR)?

2. Australian Context

• Do they understand Australian threat landscape?
• Are they familiar with ACSC advisories and Essential 8?
• Can they support Australian compliance requirements?
• Do they have experience with your industry?

3. Service Scope

• What services are included in the base price?
• What costs extra (penetration testing, incident response, compliance)?
• What is included in their incident response retainer?
• How do they handle after-hours security events?

4. Transparency

• Can they provide sample SOC reports?
• Do they share threat intelligence with clients?
• Are they transparent about incidents that affect your environment?
• Do they provide regular security posture reports?

5. References

• Ask for references from Australian clients of similar size and industry
• Ask about their incident response track record
• Check their reputation in the Australian cybersecurity community

Cost Considerations

Service	Typical Monthly Cost (AUD)
Basic MDR (Managed Detection & Response)	$3,000–$6,000
Full MSSP service	$8,000–$20,000
Enterprise SOC-as-a-Service	$15,000–$50,000+
Penetration testing (one-off)	$5,000–$20,000 per engagement
Incident response retainer	$2,000–$5,000 per month

Compare this against the cost of building an internal security team ($150,000–$250,000 per analyst) and the MSSP becomes cost-effective for most mid-market businesses.

The MSP Pricing Comparison 2026 article provides broader pricing context.

Getting Started

If you are considering adding an MSSP:

1. Assess your current security posture. Use the Essential 8 Maturity Level 1 checklist to understand where you stand.
2. Identify your security gaps. What can your MSP not do? Where are you exposed?
3. Define your requirements. What compliance frameworks apply? What threat level do you face?
4. Evaluate 2–3 MSSPs. Use the criteria above to compare providers.
5. Start with MDR. If a full MSSP feels like too much, begin with Managed Detection and Response — it is the most cost-effective entry point.

Related Guides

• Essential 8 Maturity Level 1 — Baseline cybersecurity requirements
• Cyber Insurance MSP Requirements — What insurers expect
• MSP Cybersecurity Incident Response — What happens during a breach
• MSP Health Score — Benchmark your MSP's security posture
• How to Choose an MSP — Evaluating MSP security capability