How Often Should You Get a Penetration Test? A Guide to Testing Frequency

Introduction

One of the most common questions organizations ask when building a cybersecurity program is:

"How often should we get a penetration test?"

The answer depends on several factors, including industry requirements, business risk, technology changes, and security maturity.

For many organizations, an annual penetration test is a common baseline. However, companies with rapidly changing environments, sensitive data, regulatory obligations, or higher risk profiles may benefit from more frequent testing.

Penetration testing is not a one-time security exercise. Networks, applications, cloud environments, and attack techniques constantly evolve. A system that was secure six months ago may introduce new vulnerabilities after a software update, infrastructure change, or configuration adjustment.

Regular penetration testing helps organizations identify weaknesses before attackers can exploit them and provides ongoing validation that security controls are working effectively.

For a broader overview of penetration testing approaches, see our complete guide to penetration testing.

How Often Should a Company Perform a Penetration Test?

For most organizations, penetration testing should be performed at least annually.

An annual penetration test helps organizations:

• Identify newly introduced vulnerabilities
• Validate security controls
• Support compliance requirements
• Understand evolving cybersecurity risks
• Maintain customer confidence

However, annual testing is not a universal rule. The appropriate frequency depends on an organization's environment and risk profile.

Organizations should consider additional testing after significant changes, including:

• Launching a new application
• Migrating systems to the cloud
• Changing network architecture
• Implementing major software updates
• Experiencing a security incident
• Adding new external-facing systems

Penetration Testing Frequency Based on Risk

Different organizations face different levels of cybersecurity risk.

Low-Risk Organizations

Organizations with smaller environments and limited sensitive data may perform penetration testing:

• Annually
• Before major technology changes
• When required by customers or compliance programs

Medium-Risk Organizations

Organizations handling customer information or operating business-critical applications may benefit from:

• Annual penetration testing
• Additional testing after major changes
• Application testing during development cycles

Examples include:

• SaaS companies
• Technology providers
• Professional services organizations

High-Risk Organizations

Organizations handling highly sensitive information or operating critical infrastructure may require more frequent testing.

Examples include:

• Financial institutions
• Healthcare organizations
• Government contractors
• Large enterprises

These organizations may perform:

• Annual or semiannual penetration tests
• Continuous vulnerability management
• Application security testing
• Red team exercises

Penetration Testing Requirements by Compliance Framework

Many organizations perform penetration testing because of regulatory, contractual, or industry requirements.

SOC 2 Penetration Testing Requirements

SOC 2 does not universally require every organization to perform penetration testing, but many organizations perform penetration tests as evidence of a strong security program.

Testing frequency often depends on:

• Risk assessment results
• Customer expectations
• Security policies
• Control requirements

Organizations undergoing SOC 2 audits commonly perform annual penetration testing to demonstrate proactive security practices.

PCI DSS Penetration Testing Requirements

Organizations handling payment card information often have specific penetration testing requirements.

PCI DSS requires organizations to perform penetration testing at least annually and after significant infrastructure or application changes.

Testing commonly evaluates:

• External network security
• Internal network security
• Segmentation controls
• Security vulnerabilities

CMMC Penetration Testing Requirements

Organizations pursuing Cybersecurity Maturity Model Certification (CMMC) may need security testing activities as part of their overall cybersecurity program.

For defense contractors handling sensitive information, regular security assessments help validate that controls are properly implemented.

HIPAA and Healthcare Security Testing

HIPAA does not prescribe a specific penetration testing schedule, but healthcare organizations often use penetration testing as part of their broader risk management process.

Testing helps identify weaknesses that could expose:

• Protected health information (PHI)
• Patient systems
• Healthcare applications

Reasons to Perform Penetration Testing More Frequently

While annual testing is common, some organizations should test more often.

1. Significant Infrastructure Changes

Organizations should consider penetration testing after:

• Cloud migrations
• Network redesigns
• New security implementations
• Major application releases

Changes can introduce unexpected vulnerabilities.

2. New Applications or Features

Software changes can create new security risks.

Organizations should consider testing:

• Before launching customer-facing applications
• Before major feature releases
• After significant code changes

This is especially important for SaaS companies.

3. Security Incidents

After experiencing a breach or security incident, organizations should consider penetration testing to:

• Identify remaining weaknesses
• Validate remediation efforts
• Prevent similar attacks

4. Customer or Partner Requirements

Many organizations perform penetration testing because customers, partners, or vendors require security validation.

Common situations include:

• Enterprise customer security reviews
• Vendor risk assessments
• Procurement requirements

Is Annual Penetration Testing Enough?

For many organizations, annual penetration testing is an effective baseline. However, penetration testing should be part of a broader security strategy.

A mature cybersecurity program may combine:

• Annual penetration testing
• Continuous vulnerability scanning
• Security monitoring
• Secure software development practices
• Employee security training
• Incident response planning

Penetration testing provides a point-in-time assessment, while ongoing security practices help organizations manage risk between assessments.

Penetration Testing Frequency Best Practices

Organizations should establish testing schedules based on:

Business Risk

Consider:

• Type of data stored
• Industry requirements
• Customer expectations
• Potential business impact

Technology Changes

Test after:

• Major deployments
• Infrastructure changes
• Cloud migrations

Compliance Requirements

Align testing schedules with:

• SOC 2
• PCI DSS
• HIPAA
• CMMC
• ISO 27001

Security Maturity

Organizations with mature programs may expand beyond annual testing into:

• Continuous assessments
• Regular application testing
• Advanced offensive security exercises

Conclusion

The right penetration testing frequency depends on an organization's risk, technology environment, and compliance obligations. While annual penetration testing is a common practice, organizations should also test after significant changes that could introduce new security risks.

Regular penetration testing provides valuable insight into vulnerabilities, validates security controls, and helps organizations reduce the likelihood of successful cyberattacks.

Framework Security helps organizations identify security weaknesses through comprehensive penetration testing designed to align with business objectives, compliance requirements, and evolving cyber threats.

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