Would you trust students to grade their own exams? Athletes to referee their own games? Contractors to inspect their own construction? Yet dental practices across the country make this exact mistake with cybersecurity, allowing their Managed Service Provider to both implement security controls and validate their effectiveness.
This isn't about questioning your MSP's integrity. It's about recognizing a fundamental truth: no one can objectively assess their own work.
When your MSP audits their own security work, cognitive biases inevitably shape their findings:
Confirmation bias leads them to look for evidence that their security measures are working while unconsciously overlooking signs they might not be. This is a well-documented psychological phenomenon that affects decision-making in security contexts.
Familiarity blindness means patterns obvious to fresh eyes simply don't register anymore. They've worked around that security gap for so long, they no longer see it as a gap.
Rationalization comes naturally when discovering problems in their own implementation. These justifications might be sincere, but they're shaped by the defensive instinct to minimize personal responsibility.
This isn't malicious—it's human nature.
Ask your MSP how secure your practice is. They'll emphasize the positive: all the security measures they've implemented, the tools they've deployed, the best practices they follow.
Now ask an independent MSSP to assess the same environment. Suddenly you'll hear about the 10,000 vulnerabilities the more sophisticated scanning discovered (compared to the 1,500 your MSP's tools found). You'll learn about firewall rules that haven't been reviewed in years. You'll discover that while backups exist, they haven't been successfully restored in 18 months.
Neither assessment is lying. But one is filtered through "this is what we built and we're proud of it," while the other asks "what could an attacker exploit here?"
Consider real-world cases where independent MSSPs discover critical exploits that internal IT teams completely missed. This wasn't because IT teams were incompetent---they were managing operations effectively. But they weren't specifically looking for security vulnerabilities with an adversarial mindset.
The exploits could have led to massive data breaches affecting multiple practices. By the time internal IT would have discovered vulnerabilities, it likely would have been through breach notifications from attackers.
In regulated industries like healthcare, separation of duties isn't just best practice---it's a governance requirement emphasized by HHS. The principle follows established internal control frameworks used across industries.
The MSP that configures your firewall shouldn't be the same entity validating that the firewall is properly configured.
This model aligns with NIST Special Publication 800-53 security control requirements.
For DSOs with board oversight, board members asking "Are we secure?" need answers they can trust. When the IT Director reports "Yes, our MSP has implemented all recommended security controls," the natural follow-up should be: "And who independently validated that those controls are effective?"
No board would accept financial statements audited by the CFO's office, following Sarbanes-Oxley requirements. Security assessments from the IT department should face the same scrutiny, especially given increasing healthcare data breach costs.
Self-assessment doesn't work in academics, sports, construction, finance, or any other field where objectivity matters. It doesn't work in cybersecurity either.
Your dental practice deserves security assessments conducted by professionals whose only job is to find vulnerabilities---not to defend the systems they built. Independent validation through MSSP oversight isn't about distrusting your MSP. It's about implementing the separation of duties that proper governance requires and that effective security demands.
Is your practice relying on self-assessment for security validation? Black Talon Security provides independent MSSP oversight that delivers the objective security assessments your governance framework requires. Contact us to learn how separation of duties strengthens both your security and your MSP partnership.
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