A business can do everything right internally - strong MFA, patched systems, trained staff - and still be exposed because of a supplier they barely think about. Large-scale security incidents increasingly start not with the business itself, but with a vendor it trusted with access. Here's a practical, right-sized approach to managing that risk without an enterprise compliance team.
Why vendor risk deserves attention now
Most Perth businesses run far more third-party software than they realise - accounting platforms, CRMs, marketing tools, industry-specific software, a website host, a payroll processor, an IT provider with remote access. Each one is a potential entry point, either because it holds your data directly or because a compromised vendor account gives an attacker a trusted path into your systems.
This isn't a hypothetical, enterprise-only concern. Attackers have increasingly shifted toward compromising a single software vendor or service provider to reach dozens or hundreds of that vendor's customers at once - it's a more efficient path in than attacking each business individually. A widely used piece of software or a shared IT management tool being compromised can expose every business that trusted it, regardless of how well those individual businesses were otherwise protected.
The types of access your vendors actually have
- Data access - a CRM, accounting platform, or HR system storing client, financial, or staff data on a vendor's servers
- System access - remote access tools used by an IT provider, software vendor, or equipment supplier to support or maintain something on your network
- Integration access - connected apps and API integrations (think Zapier connections, Microsoft 365 add-ins, or CRM-to-accounting integrations) that carry standing permissions even when nobody's actively using them
- Website and domain access - agencies or contractors with admin logins to your website, hosting, or domain registrar, which are common targets because they let an attacker deface a site or redirect traffic without ever touching your internal network
A right-sized vendor risk checklist
You don't need a formal Third-Party Risk Management program to meaningfully reduce this risk. A practical approach for a Perth SMB:
- Build an inventory. List every vendor with access to your data or systems - not just the obvious ones. Our guide to SaaS management for Perth businesses covers how to build and maintain this list properly.
- Classify by what's actually at stake. A vendor holding client financial data or with standing remote access to your network is a higher priority than one running your office coffee machine loyalty app. Focus effort where the exposure is real.
- Do basic due diligence before signing up. Before granting a new vendor access, a few minutes checking whether they offer MFA on their own platform, publish a security or privacy policy, and have a clean public breach history is enough to catch the worst risks early.
- Put it in the contract. Ask for basic commitments around data handling and breach notification - most reasonable vendors will provide this, and their willingness to answer is itself informative.
- Review and remove access on a schedule. Vendor access that's never reviewed tends to outlive the relationship it was granted for. Treat vendor offboarding with the same discipline as staff offboarding - our Microsoft 365 offboarding checklist covers the same principle applied to departing staff.
- Watch for exposure after the fact. Dark web monitoring can flag when credentials tied to a vendor breach show up for sale, giving you a chance to act before they're used against you.
Where this intersects with compliance and insurance
Vendor risk isn't just a technical concern anymore - it shows up directly in compliance and insurance requirements. The Essential Eight and most cyber insurance applications now ask about third-party access controls directly, and a poorly managed vendor relationship can affect a claim outcome even when the vendor - not the business itself - was the one breached. Being able to show a basic vendor inventory and access review process matters well beyond the immediate security benefit.
Frequently Asked Questions
What counts as a third-party risk for a small business?
Any external supplier with access to your data or systems - a payroll processor holding staff bank details, a CRM vendor storing your client list, a website agency with admin access to your site, an accounting bookkeeper with access to your financial platform, or your own IT provider with remote access to your network. If a breach at that supplier would expose your data or give an attacker a path into your systems, it's a third-party risk.
Do small businesses really need formal vendor risk management?
Not the enterprise version with lengthy questionnaires and dedicated staff - but a basic version is increasingly expected. Cyber insurance applications and Essential Eight assessments now routinely ask what controls you have over vendor access, and a single unmanaged vendor with excessive access is a common way attackers reach otherwise well-protected businesses.
How do I know what access my vendors actually have?
Start with an inventory - list every SaaS platform, integration, and third party with a login, API connection, or remote access tool into your systems. Most businesses are surprised by the number once they actually list it out. Our guide to SaaS management for Perth businesses covers how to build and maintain that inventory.
What's the single highest-impact step for a small business?
Removing access promptly when it's no longer needed - when a contract ends, a project finishes, or a staff member at the vendor changes. Stale access that nobody remembers to revoke is consistently the most common finding in vendor risk reviews, and it's the easiest one to fix.
Not sure what access your vendors actually have?
We help Perth businesses build a practical vendor risk process as part of a broader security review - no enterprise overhead, just the controls that actually reduce your exposure.
Talk to us about vendor risk →For related reading, see our guides to SaaS Management for Perth Businesses and Cyber Insurance for Perth Businesses.