What In-House Security Actually Costs
Salary is only part of it. A senior security analyst in Australia earns $120,000 to $160,000 in base salary. Add 11% superannuation, recruitment costs (typically 15–20% of first-year salary), ongoing training and certification renewal, and the tooling licences the role requires.
One person working business hours doesn’t give you 24/7 coverage. One person on call doesn’t give you 24/7 response capability either. A minimum viable Security Operations Centre requires at least three to four headcount to maintain continuous coverage across shifts, allow for leave, and provide depth of expertise across different threat types.
Then there’s the hiring problem. The global cyber security talent shortage was estimated at 4 million vacancies in 2025. In Australia, experienced security analysts are in short supply, and average time-to-fill for security roles is long.
The fully-loaded cost of a two-person in-house security function, before tooling, is typically $400,000 to $600,000 per year. That buys you business-hours coverage and limited response depth, not a 24/7 SOC.
What Managed Security Costs and What You Get
Managed security services are typically priced as a monthly fee covering a defined scope. That scope usually includes continuous monitoring, threat detection and alerting, incident response, regular reporting, and compliance support.
What varies across providers: response SLA (the time from alert to action), coverage hours (some offer genuine 24/7, others are business hours with on-call escalation), and whether Australian-based staff handle after-hours incidents.
The cost range for a managed security service in Australia for a mid-market business is broad, from around $5,000 per month for basic MDR to $20,000 or more per month for comprehensive SOC coverage with compliance management. The right number depends on your environment size, risk profile, and compliance requirements.
Head-to-Head Comparison
Here’s how the two models compare across the factors that matter most in practice.
| Factor | In-house | Managed security |
|---|---|---|
| Cost | High fixed cost; increases with headcount | Predictable monthly fee; scales with scope |
| 24/7 coverage | Requires 3–4 headcount; expensive to sustain | Included in most MSSP contracts by design |
| Specialist depth | Limited to skills of hired staff | Access to a broad team of specialists |
| Control and visibility | High; direct access to all data and decisions | Good; requires clear reporting in contract |
| Compliance support | Depends on staff expertise; often extra spend | Typically included; Essential Eight, ISO 27001, PCI DSS |
| Scalability | Slow; requires hiring and onboarding | Fast; scope adjustments handled contractually |
| Incident response speed | Variable; depends on staffing and hours | Defined by SLA; 24/7 with good providers |
| Local knowledge | High; deep knowledge of your environment | Builds over time; requires good onboarding |
When In-House Makes More Sense
There are real situations where the in-house model is the right call.
Large enterprise organisations with complex, proprietary systems often need people who understand the environment deeply and can work within it day-to-day. The institutional knowledge that builds over years of working in one environment is hard to replicate with an external provider.
Some regulated industries have data sovereignty requirements that restrict what can be shared with or accessed by third parties. If your data can’t leave a specific environment or jurisdiction, in-house security is often the only practical option.
Organisations that have already built a mature security team are typically better served by optimising that function than replacing it. For them, an MSSP might complement the in-house team by providing overflow capacity or specialist skills, rather than substituting for it.
When Managed Security Makes More Sense
Managed security is typically the better choice for mid-market businesses that don’t have existing security staff. The cost of a properly staffed in-house SOC is simply not justifiable for most organisations at this scale.
It also makes sense for any organisation facing compliance requirements they lack the in-house expertise to meet. Essential Eight, IRAP, PCI DSS, and APRA CPS 234 all require ongoing work and documented evidence. A qualified MSSP manages that continuously.
Businesses where the cost of a real incident far outweighs the managed service fee are in this category. A ransomware attack affecting a business with $50M in annual revenue typically costs far more than a year of managed security coverage, in operational disruption alone, before you count legal costs, regulatory exposure, and reputational damage.
Businesses with multi-location or multi-timezone operations also tend to benefit. Maintaining coverage across time zones in-house is expensive. An MSSP with a 24/7 SOC handles that as part of the base service.
The Hybrid Approach
Many larger organisations use both. In-house security architects and senior analysts set strategy, manage vendor relationships, handle escalations, and own the security programme. The MSSP provides the 24/7 monitoring layer and specialist response capacity that the in-house team can’t cost-effectively sustain around the clock.
This isn’t a compromise position. For organisations above a certain size and complexity, the hybrid model is often the most sensible architecture. It preserves the institutional knowledge and control that matters internally while accessing the scale and depth that an MSSP brings.
Conclusion
Most mid-market Australian businesses don’t have the budget or the hiring runway to build a proper in-house security function. Managed security delivers coverage and compliance support at a fraction of the cost. If you’re working through this decision, Gridware’s team can help you model out what makes sense for your situation. Contact us.
Frequently asked questions
Is it cheaper to use an MSSP or hire an in-house security team?
For most mid-market businesses, an MSSP is significantly cheaper when you account for the full cost of in-house security. A single senior security analyst costs $120,000–$160,000+ in base salary before super, tools, training, and recruitment. A minimum viable in-house SOC requires multiple headcount. A managed security service covering equivalent capability typically costs $5,000–$20,000 per month, including 24/7 coverage a small in-house team can’t sustainably provide.
What does it cost to build an in-house security operations centre?
A minimum viable in-house SOC for a mid-market organisation requires at least three to four security analysts for continuous coverage, a SOC manager, SIEM and EDR tooling, and ongoing training. In staff costs alone, that’s typically $800,000+ per year before technology licences. For most organisations below enterprise scale, it’s not financially viable.
Can a small security team be effective without an MSSP?
A small in-house team can be effective for strategy, vendor management, escalations, and owning the security programme. Where small teams typically struggle is 24/7 monitoring and response. A hybrid model, where the in-house team sets direction and an MSSP provides the operational monitoring layer, often works better than trying to cover everything internally with limited headcount.
What’s the difference between a SOC and an MSSP?
A Security Operations Centre (SOC) is the team and infrastructure responsible for continuous security monitoring and response. An MSSP is a provider that operates a SOC on behalf of its clients as a managed service. When you engage an MSSP, you’re accessing their SOC capability without building one yourself.
Can I use both an MSSP and an in-house team at the same time?
Yes, and many larger organisations do. The typical hybrid model: in-house security architects and senior analysts own strategy, governance, and escalations, while the MSSP provides 24/7 monitoring, initial triage, and specialist response capacity. This combines institutional knowledge internally with operational depth externally.
What should I look for in a managed security SLA?
At minimum: defined response times (from alert to investigation, from investigation to escalation), coverage hours and whether after-hours uses local staff or offshore, specific escalation paths, reporting frequency and content, and what happens if a major incident exceeds the agreed scope. The SLA should be measurable, not descriptive.
