Before a prospect signs with you, they want proof that their data will be safe in your hands. Asking for that proof has become a standard gate in B2B buying rather than a courtesy reserved for the largest contracts. Your buyers are putting real budget behind that vetting. In KPMG's 2026 Global Third-Party Risk Management Survey, 52% of organizations named risk assessment and due diligence their largest area of third-party risk spending, ahead of tooling, cybersecurity, and audits. Your security gets examined long before anyone reaches for a contract.
That scrutiny keeps intensifying for a simple reason. Every vendor a company brings on widens its own attack surface, so a weakness in your environment becomes a weakness in theirs. Buyers have stopped taking security claims on faith and started asking you to prove them.
The cost of all that proving lands on your security team. Questionnaires pile up, evidence gets scraped together from spreadsheets and scattered documents, and a review that should take days stretches into weeks while a deal sits waiting. It doesn't have to work this way. This article covers the types of security reviews and how they differ from audits and assessments, the two methods teams use to run them, the seven steps for conducting one, and how automation can shorten the whole cycle.
What is a security review?
A security review is a systematic evaluation of your organization’s security measures, policies, and practices. It is a holistic approach aimed at identifying potential threats and ensuring that your organization adheres to industry best practices.
Security reviews can be both internal and external. External reviews are conducted by potential prospects who might consider your organization for business relationships. Internal reviews are proactive assessments aimed at identifying and mitigating potential security gaps—you must typically conduct them to be ready for external reviews.
For vendor security teams, security reviews can be a comprehensive and collaborative effort that involves various activities, such as:
- Policy reviews: Your security policies must be regularly updated to reflect the changing threat landscape, ensure industry-standard practices, and build a culture of security awareness that appeals to your prospects.
- Technical and administrative control reviews: You should review and monitor your security controls continuously so that you can verify their effectiveness and update them as needed.
- Third-party risk management: All third parties connected to your organization have a unique risk profile and threat landscape, and your prospects will want to know how you manage them. Conducting thorough reviews of your third-party security postures helps you assess how they may expand your attack surface and ensures they comply with your organization’s security standards.
- Access reviews: You must know who has access to your systems, applications, and sensitive data. Regular access reviews help prevent unauthorized access and ensure that access privileges are aligned with user roles and responsibilities.
- Penetration testing: Simulating cyberattacks is an excellent way to identify and patch vulnerabilities to minimize the risk of external threats.
{{cta_withimage10="/cta-blocks"}} | How to Turn Security into Revenue ebook
What are the types of security reviews?
Not every security review has the same owner, trigger, or goal. Four types cover most of what teams run into.
Internal security review
Your own security team runs this review, either continuously or on a set schedule. It checks your controls, policies, and access so you can close gaps early, before anyone outside the company finds them. A recent internal review also gives you most of the evidence you need when a prospect starts asking questions.
External or customer security review
A prospect or existing customer runs this review on you, usually during their buying due diligence. They examine your security posture before they trust you with their data, most often through a security questionnaire or a request for your audit reports. This is the review that holds up deals, so the faster you answer it, the faster you close.
Vendor or third-party review
Here you're the one reviewing, evaluating a vendor's controls before you share data with them and throughout the relationship. The goal is to understand how much risk each vendor adds to your own attack surface.
Compliance audit
An accredited external auditor examines your controls against a standard such as SOC 2 or ISO 27001. Audits run annually or on your framework's cycle, and they end in a formal attestation you can share with customers. An audit tests your controls rather than taking them at face value, which makes it the heaviest of the four.
Security review vs assessment vs audit
People use these three terms loosely, but they mean different things, and knowing the difference helps you scope the right work.
A review is the routine internal check you control, an assessment is a wider proactive sweep, and an audit is the formal examination that tests your controls and produces an attestation.
Why should you conduct security reviews?
Internal security reviews help you understand and improve your organization's overall security posture and build trust with customers, investors, and other stakeholders more efficiently. They also help your organization complete external security reviews at a faster rate. If you already have demonstrable evidence from recently conducted internal security reviews, you’ll have adequate information to tackle external reviews.
External reviews are also important as they help you align with the security goals of your prospects and build credibility and trust early on in the relationship.
Not conducting security reviews frequently can leave threats and vulnerabilities unchecked and damage your security posture, which can lead to the following issues:
- Reputational damage: Without proof of a strong security posture, partners and prospects may lose trust in your organization.
- Missed business opportunities: Customers want peace of mind knowing their partners and vendors protect their data and focus on operational stability. Prospects will hesitate to do business with you if they can’t verify your security controls.
- Compliance issues: Comprehensive security is a fundamental component of many regulations and voluntary compliance standards. Security reviews help you conduct a gap analysis and address instances when you fall out of compliance.
How to conduct a security review
The specifics shift by industry and scope, but a dependable review follows the same seven steps.
1. Define the scope
Start by naming the data, applications, and infrastructure the review will cover. Set a clear goal for the work, whether that's audit readiness, a gap check, or a response to a prospect. A tight scope keeps the review focused and shows everyone involved where the boundaries sit. It also makes the findings easier to act on once you're done.
2. Gather evidence
Pull your policies, prior audit reports, and control documentation into one place before you dig in. Centralized evidence means reviewers aren't chasing files across drives and inboxes. It also gives you a reusable record you can hand to the next prospect who asks. The less time you spend hunting for documents, the more you spend on the review itself.
3. Assess your controls
Check your technical and administrative controls against the standard you're targeting. Note where each control clears the bar and where it falls short. Pay closest attention to the areas prospects probe most often, such as access management, encryption, and incident response. This step turns a pile of evidence into a clear read on your posture.
4. Test what matters
Run vulnerability scans and penetration testing to confirm your controls hold up against real attacks. Automated scans surface known weaknesses quickly, while a penetration test shows how those weaknesses play out in practice. Prioritize the results by risk so your team fixes the most dangerous gaps first. Testing separates controls that look good on paper from the ones that perform under pressure.
5. Check compliance
Map your findings to the frameworks you answer to, such as SOC 2, ISO 27001, or HIPAA. This shows where you already comply and where you have work to do before an audit. Tying each gap to a specific requirement also helps you explain it to prospects in terms they recognize. Clear mapping keeps you from scrambling when a formal audit lands.
6. Document and remediate
Record every gap you found, then give each one an owner and a deadline. A written plan keeps remediation from stalling once the review wraps. Track progress so nothing slips between reviews. Strong documentation becomes the evidence base for your next internal or external review.
7. Monitor continuously
Reviews age fast, so watch your controls between scheduled checks rather than waiting for the next one. Continuous monitoring catches drift, new vulnerabilities, and changes to your infrastructure as they happen. It also means each formal review starts from a current baseline instead of a stale one. Steady monitoring turns reviews from a fire drill into routine maintenance.
Common security review methods
Once you know what you're reviewing, two methods do most of the work.
Questionnaires
You either fill out a security questionnaire a prospect sends you or use an established one such as SIG or CAIQ to check your own controls. Questionnaires keep costs low, spell out the controls reviewers expect, and give you a repeatable format you can reuse. A single SIG questionnaire can run past 800 questions, though, so answering one by hand can tie up your team for days.
External audits
An external auditor examines your posture and reports findings from an unbiased view. An audit gives you and your prospects greater assurance in your controls, and it doubles as preparation for formal compliance. Because a third party runs it, your internal team gets time back for other priorities.
Both methods lean on heavy evidence collection, which drags when you do it by hand. Even with an external auditor, you gather documentation before and after the audit to act on the findings. That manual work spills into the rest of the business, stretching sales cycles, delaying other security work, and wearing out the team.
{{cta_webinar5="/cta-blocks"}} | Questionnaire automation webinar
Challenges in a typical security review process
Even teams that take security reviews seriously hit the same obstacles. Four come up again and again.
Reactive reviews
Many teams wait until a prospect sends a questionnaire before they run a granular review. That looks efficient, since it saves effort until someone asks, but it backfires in two ways. You rush the review to close the deal, which produces sloppy work and poorly answered questions. And when several questionnaires land at once, your team faces last-minute pressure exactly when deals are on the line.
Uneven workload
Manual busywork overwhelms smaller teams without producing better results. The people best equipped to answer security questions are usually the same people you need building and defending your product. Every hour they spend copying answers between documents is an hour they don't spend on security itself.
Compliance complexity
Requirements change constantly, and a loose process falls behind. A control that satisfied an auditor last year may not clear the bar this year, and any framework you newly adopt brings demands of its own. Without a process that tracks those shifts, you learn you've drifted only when a reviewer points it out.
Data availability
A thorough review needs reliable data, and teams that keep evidence in spreadsheets and scattered documents often get little back from the assessments they pay for. When evidence lives in a dozen places, gathering it eats the time you meant to spend analyzing it. Stale or missing evidence also weakens the answers you hand a prospect.
A modern solution: Security review automation
Software-supported security reviews are better and more efficient than the manual approach, which creates inefficiencies and burdens teams. Your ideal solution is to opt for a trust management platform that lets you automate and streamline questionnaires and other aspects of security reviews.
The right solution drives growth-boosting benefits such as:
- Increased efficiency: Trust management platforms can take numerous tasks off your plate, such as evidence collection and centralization. This lets your team focus on valuable tasks without getting bogged down in manual work.
- Resource savings: Conducting security reviews through comprehensive software helps you stay on top of potentially expensive security threats.
- More sales opportunities: Trust management platforms make it easy to showcase your controls and their efficiency to prospects, ensuring you don’t miss any opportunities due to delayed or poorly answered questionnaires.
- Increased ROI: When you have a bird’s-eye overview of your security initiatives, you can improve the return on your security investment with better sales outcomes.
It gives them the real-time evidence they need, and it has greatly reduced the number of security questionnaires that are sent to our sales and compliance teams. They can find answers to many of their data protection questions, view our active controls, and request documents to fulfil due diligence, all in the one place.
{{cta_testimonial16="/cta-blocks"}} | ComplyCube customer story
Automate security reviews and questionnaires with Vanta
Vanta is a comprehensive trust management platform that helps organizations of sizes automate compliance, manage risk, and prove trust. It offers security and risk management solutions, most notably a dedicated Trust Center that makes it easy to complete security reviews faster.
With Trust Center, you can demonstrate your security and compliance posture in real time. All your controls are displayed in one dashboard that you can share with your stakeholders during the review process.
Watch this webinar to see how the Trust Center can accelerate your deal cycles.
Another way Vanta streamlines security workflows is through its Questionnaire Automation solution. It can help you complete security reviews and questionnaires 81% faster with features such as:
- AI-enabled responses that eliminate the need for manual entries
- Centralized security knowledge base to help you respond to questionnaires faster
- Multiple questionnaire completion formats to accommodate your prospects’ needs
- 80% or more of your security questions, automatically
- Up to 95 percent acceptance rate of AI-generated answers
Visit our Questionnaire Automation page or request a demo today to learn more.
{{cta_simple13="/cta-blocks"}} | Questionnaire automation product page
Understanding Security Posture
Security reviews: Definition, common methods, and challenges
Understanding Security Posture
Looking to build customer trust and automate security questionnaires to close deals fast?
Before a prospect signs with you, they want proof that their data will be safe in your hands. Asking for that proof has become a standard gate in B2B buying rather than a courtesy reserved for the largest contracts. Your buyers are putting real budget behind that vetting. In KPMG's 2026 Global Third-Party Risk Management Survey, 52% of organizations named risk assessment and due diligence their largest area of third-party risk spending, ahead of tooling, cybersecurity, and audits. Your security gets examined long before anyone reaches for a contract.
That scrutiny keeps intensifying for a simple reason. Every vendor a company brings on widens its own attack surface, so a weakness in your environment becomes a weakness in theirs. Buyers have stopped taking security claims on faith and started asking you to prove them.
The cost of all that proving lands on your security team. Questionnaires pile up, evidence gets scraped together from spreadsheets and scattered documents, and a review that should take days stretches into weeks while a deal sits waiting. It doesn't have to work this way. This article covers the types of security reviews and how they differ from audits and assessments, the two methods teams use to run them, the seven steps for conducting one, and how automation can shorten the whole cycle.
What is a security review?
A security review is a systematic evaluation of your organization’s security measures, policies, and practices. It is a holistic approach aimed at identifying potential threats and ensuring that your organization adheres to industry best practices.
Security reviews can be both internal and external. External reviews are conducted by potential prospects who might consider your organization for business relationships. Internal reviews are proactive assessments aimed at identifying and mitigating potential security gaps—you must typically conduct them to be ready for external reviews.
For vendor security teams, security reviews can be a comprehensive and collaborative effort that involves various activities, such as:
- Policy reviews: Your security policies must be regularly updated to reflect the changing threat landscape, ensure industry-standard practices, and build a culture of security awareness that appeals to your prospects.
- Technical and administrative control reviews: You should review and monitor your security controls continuously so that you can verify their effectiveness and update them as needed.
- Third-party risk management: All third parties connected to your organization have a unique risk profile and threat landscape, and your prospects will want to know how you manage them. Conducting thorough reviews of your third-party security postures helps you assess how they may expand your attack surface and ensures they comply with your organization’s security standards.
- Access reviews: You must know who has access to your systems, applications, and sensitive data. Regular access reviews help prevent unauthorized access and ensure that access privileges are aligned with user roles and responsibilities.
- Penetration testing: Simulating cyberattacks is an excellent way to identify and patch vulnerabilities to minimize the risk of external threats.
{{cta_withimage10="/cta-blocks"}} | How to Turn Security into Revenue ebook
What are the types of security reviews?
Not every security review has the same owner, trigger, or goal. Four types cover most of what teams run into.
Internal security review
Your own security team runs this review, either continuously or on a set schedule. It checks your controls, policies, and access so you can close gaps early, before anyone outside the company finds them. A recent internal review also gives you most of the evidence you need when a prospect starts asking questions.
External or customer security review
A prospect or existing customer runs this review on you, usually during their buying due diligence. They examine your security posture before they trust you with their data, most often through a security questionnaire or a request for your audit reports. This is the review that holds up deals, so the faster you answer it, the faster you close.
Vendor or third-party review
Here you're the one reviewing, evaluating a vendor's controls before you share data with them and throughout the relationship. The goal is to understand how much risk each vendor adds to your own attack surface.
Compliance audit
An accredited external auditor examines your controls against a standard such as SOC 2 or ISO 27001. Audits run annually or on your framework's cycle, and they end in a formal attestation you can share with customers. An audit tests your controls rather than taking them at face value, which makes it the heaviest of the four.
Security review vs assessment vs audit
People use these three terms loosely, but they mean different things, and knowing the difference helps you scope the right work.
A review is the routine internal check you control, an assessment is a wider proactive sweep, and an audit is the formal examination that tests your controls and produces an attestation.
Why should you conduct security reviews?
Internal security reviews help you understand and improve your organization's overall security posture and build trust with customers, investors, and other stakeholders more efficiently. They also help your organization complete external security reviews at a faster rate. If you already have demonstrable evidence from recently conducted internal security reviews, you’ll have adequate information to tackle external reviews.
External reviews are also important as they help you align with the security goals of your prospects and build credibility and trust early on in the relationship.
Not conducting security reviews frequently can leave threats and vulnerabilities unchecked and damage your security posture, which can lead to the following issues:
- Reputational damage: Without proof of a strong security posture, partners and prospects may lose trust in your organization.
- Missed business opportunities: Customers want peace of mind knowing their partners and vendors protect their data and focus on operational stability. Prospects will hesitate to do business with you if they can’t verify your security controls.
- Compliance issues: Comprehensive security is a fundamental component of many regulations and voluntary compliance standards. Security reviews help you conduct a gap analysis and address instances when you fall out of compliance.
How to conduct a security review
The specifics shift by industry and scope, but a dependable review follows the same seven steps.
1. Define the scope
Start by naming the data, applications, and infrastructure the review will cover. Set a clear goal for the work, whether that's audit readiness, a gap check, or a response to a prospect. A tight scope keeps the review focused and shows everyone involved where the boundaries sit. It also makes the findings easier to act on once you're done.
2. Gather evidence
Pull your policies, prior audit reports, and control documentation into one place before you dig in. Centralized evidence means reviewers aren't chasing files across drives and inboxes. It also gives you a reusable record you can hand to the next prospect who asks. The less time you spend hunting for documents, the more you spend on the review itself.
3. Assess your controls
Check your technical and administrative controls against the standard you're targeting. Note where each control clears the bar and where it falls short. Pay closest attention to the areas prospects probe most often, such as access management, encryption, and incident response. This step turns a pile of evidence into a clear read on your posture.
4. Test what matters
Run vulnerability scans and penetration testing to confirm your controls hold up against real attacks. Automated scans surface known weaknesses quickly, while a penetration test shows how those weaknesses play out in practice. Prioritize the results by risk so your team fixes the most dangerous gaps first. Testing separates controls that look good on paper from the ones that perform under pressure.
5. Check compliance
Map your findings to the frameworks you answer to, such as SOC 2, ISO 27001, or HIPAA. This shows where you already comply and where you have work to do before an audit. Tying each gap to a specific requirement also helps you explain it to prospects in terms they recognize. Clear mapping keeps you from scrambling when a formal audit lands.
6. Document and remediate
Record every gap you found, then give each one an owner and a deadline. A written plan keeps remediation from stalling once the review wraps. Track progress so nothing slips between reviews. Strong documentation becomes the evidence base for your next internal or external review.
7. Monitor continuously
Reviews age fast, so watch your controls between scheduled checks rather than waiting for the next one. Continuous monitoring catches drift, new vulnerabilities, and changes to your infrastructure as they happen. It also means each formal review starts from a current baseline instead of a stale one. Steady monitoring turns reviews from a fire drill into routine maintenance.
Common security review methods
Once you know what you're reviewing, two methods do most of the work.
Questionnaires
You either fill out a security questionnaire a prospect sends you or use an established one such as SIG or CAIQ to check your own controls. Questionnaires keep costs low, spell out the controls reviewers expect, and give you a repeatable format you can reuse. A single SIG questionnaire can run past 800 questions, though, so answering one by hand can tie up your team for days.
External audits
An external auditor examines your posture and reports findings from an unbiased view. An audit gives you and your prospects greater assurance in your controls, and it doubles as preparation for formal compliance. Because a third party runs it, your internal team gets time back for other priorities.
Both methods lean on heavy evidence collection, which drags when you do it by hand. Even with an external auditor, you gather documentation before and after the audit to act on the findings. That manual work spills into the rest of the business, stretching sales cycles, delaying other security work, and wearing out the team.
{{cta_webinar5="/cta-blocks"}} | Questionnaire automation webinar
Challenges in a typical security review process
Even teams that take security reviews seriously hit the same obstacles. Four come up again and again.
Reactive reviews
Many teams wait until a prospect sends a questionnaire before they run a granular review. That looks efficient, since it saves effort until someone asks, but it backfires in two ways. You rush the review to close the deal, which produces sloppy work and poorly answered questions. And when several questionnaires land at once, your team faces last-minute pressure exactly when deals are on the line.
Uneven workload
Manual busywork overwhelms smaller teams without producing better results. The people best equipped to answer security questions are usually the same people you need building and defending your product. Every hour they spend copying answers between documents is an hour they don't spend on security itself.
Compliance complexity
Requirements change constantly, and a loose process falls behind. A control that satisfied an auditor last year may not clear the bar this year, and any framework you newly adopt brings demands of its own. Without a process that tracks those shifts, you learn you've drifted only when a reviewer points it out.
Data availability
A thorough review needs reliable data, and teams that keep evidence in spreadsheets and scattered documents often get little back from the assessments they pay for. When evidence lives in a dozen places, gathering it eats the time you meant to spend analyzing it. Stale or missing evidence also weakens the answers you hand a prospect.
A modern solution: Security review automation
Software-supported security reviews are better and more efficient than the manual approach, which creates inefficiencies and burdens teams. Your ideal solution is to opt for a trust management platform that lets you automate and streamline questionnaires and other aspects of security reviews.
The right solution drives growth-boosting benefits such as:
- Increased efficiency: Trust management platforms can take numerous tasks off your plate, such as evidence collection and centralization. This lets your team focus on valuable tasks without getting bogged down in manual work.
- Resource savings: Conducting security reviews through comprehensive software helps you stay on top of potentially expensive security threats.
- More sales opportunities: Trust management platforms make it easy to showcase your controls and their efficiency to prospects, ensuring you don’t miss any opportunities due to delayed or poorly answered questionnaires.
- Increased ROI: When you have a bird’s-eye overview of your security initiatives, you can improve the return on your security investment with better sales outcomes.
It gives them the real-time evidence they need, and it has greatly reduced the number of security questionnaires that are sent to our sales and compliance teams. They can find answers to many of their data protection questions, view our active controls, and request documents to fulfil due diligence, all in the one place.
{{cta_testimonial16="/cta-blocks"}} | ComplyCube customer story
Automate security reviews and questionnaires with Vanta
Vanta is a comprehensive trust management platform that helps organizations of sizes automate compliance, manage risk, and prove trust. It offers security and risk management solutions, most notably a dedicated Trust Center that makes it easy to complete security reviews faster.
With Trust Center, you can demonstrate your security and compliance posture in real time. All your controls are displayed in one dashboard that you can share with your stakeholders during the review process.
Watch this webinar to see how the Trust Center can accelerate your deal cycles.
Another way Vanta streamlines security workflows is through its Questionnaire Automation solution. It can help you complete security reviews and questionnaires 81% faster with features such as:
- AI-enabled responses that eliminate the need for manual entries
- Centralized security knowledge base to help you respond to questionnaires faster
- Multiple questionnaire completion formats to accommodate your prospects’ needs
- 80% or more of your security questions, automatically
- Up to 95 percent acceptance rate of AI-generated answers
Visit our Questionnaire Automation page or request a demo today to learn more.
{{cta_simple13="/cta-blocks"}} | Questionnaire automation product page
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