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Cyberterrorism, data breaches and increased regulation aren’t just a potential inconvenience. They're an everyday reality and critical threat to your ability to do business, period. S3 Security is committed to guiding your team and protecting your entire enterprise with custom-tailored solutions that provide real peace of mind and free you to focus on moving your company forward.

Dealing with cybersecurity issues? Wrestling with compliance? Planning ahead for the future?

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Here’s What Our Customers Have to Say About S3 Security

I wanted to reach out to say how much I appreciate what you’ve built at S3 Security, our continued interactions with you, and your work on our PCI 4.0 readiness project. We’ve been building our business since 2007, and we lucked out in finding S3 Security in 2011. So much has changed in that time, but our choice in our partner for PCI compliance will always be S3 Security.”

CISO, Payment Processor

S3 Security’s expertise and performance truly stood out during our recent assessment. Your deep knowledge of cybersecurity is evident in every step of the process, which builds confidence in our team and systems. We couldn’t have asked for a more thorough and professional team.

CISO, Retail Company

S3 Security has been instrumental in developing our Business Continuity Program. They work seamlessly as an extension of our internal team, and we couldn’t have achieved this level of success without their expertise and dedication.

CISO, Healthcare Company

We are extremely satisfied with our S3 Security Engineer. His willingness to thoroughly explain his penetration test findings and train our staff on combating password hashing attacks has been invaluable. His expertise has significantly strengthened our security posture.

CISO, Retail Company

WHATEVER IT TAKES

We’re serious about fighting cyberterrorism, securing your business and protecting privacy. That commitment, coupled with a genuine passion for what we do, fuels our persistence in finding new ways to create more reliable, secure, compliant environments today – while helping you plan for tomorrow.

Regardless of your current situation, we’re committed to partnering with you throughout your compliance journey.

COLLABORATION & CUSTOMIZATION

Our human-first approach ensures we fully understand your company, challenges, goals and culture before designing your custom solution. Working side-by-side with your team, we think creatively, respond nimbly and implement quickly to maintain resilient cybersecurity and compliance ecosystems that withstand ever-changing threats – without limiting your business growth.

Certifications + Affiliates

EXPERIENCE & EXPERTISE

Our assessors and engineers have a proven track record of success and an intimate understanding of the latest security technologies and vulnerabilities. We have a variety of certifications from the following organizations:

Service Spotlight

Proven Paths to Compliance

Explore our most in-demand cybersecurity frameworks—SOC, NIST, and CMMC—to build trust, reduce risk, and stay audit-ready.

NIST Frameworks

STRATEGIC. SCALABLE. TRUSTED.

Whether you’re securing cloud systems, managing AI risk, or aligning with federal guidelines, NIST frameworks offer a flexible foundation for cybersecurity maturity. S3 Security helps you assess, implement, and optimize NIST CSF, 800-53, 800-171, RMF, and more—so you can strengthen resilience, prove compliance, and scale securely.

CMMC Assessments

Compliance. Contracts. Confidence.

Whether you’re a prime contractor or part of the DoD supply chain, CMMC is no longer optional. As a Certified Third-Party Assessment Organization (C3PAO), S3 Security helps you prepare, assess, and maintain compliance—so you can stay eligible for contracts and ahead of audits.

SOC Audits

SMART. SIMPLE. SAFE.

SOC reports not only assure your customers you’re serious about protecting their data but can also give you a competitive advantage. So, S3 Security collaborates with one of the Top 100 CPA firms in America to provide certified SOC audits that ensure complete accuracy, efficacy and compliance.

SOONER IS SAFER

Whether you’ve been the victim of a security breach, are facing critical compliance challenges or are simply planning for the future, the faster you act the better. S3 Security will dive in headfirst to help you prevent or react to a data breach, assess compliance, manage risk and secure your business – all while accommodating budgets.

YOUR FUTURE IS BRIGHTER WITH S3 SECURITY

S3 Security is and always has been at the forefront of this growing industry, and there’s never been a more exciting time to join us.

Join The Team
S3 Security engineers having fun at work

Security News

Stay up to date on the latest in cybersecurity, data privacy, compliance and more.

NISTNIST: Matrix
July 1, 2025

NIST: Matrix

Quickly compare the 7 most common NIST frameworks with this visual matrix. See business focus, key users, core benefits, and strategic value to find the best fit for your organization's…
NISTNIST: Which Framework Best Supports Your Business?
July 1, 2025

NIST: Which Framework Best Supports Your Business?

NIST: Which Framework Best Supports Your Business? The National Institute of Standards and Technology (NIST) provides cybersecurity standards that help organizations strengthen security, manage risk, and comply with federal regulations.…
CMMCComplianceWhite Papers5 THINGS YOU SHOULD KNOW ABOUT CMMC ASSESSMENTS
May 29, 2025

5 THINGS YOU SHOULD KNOW ABOUT CMMC ASSESSMENTS

Prepare your organization for a successful Cybersecurity Maturity Model Certification (CMMC) assessment with these essential insights from an authorized C3PAO. In this whitepaper, we will evaluate: What Constitutes Controlled Unclassified…

Security News

Stay up to date on the latest in cybersecurity, data privacy, compliance and more.

NISTNIST: Matrix
July 1, 2025

NIST: Matrix

Quickly compare the 7 most common NIST frameworks with this visual matrix. See business focus, key users, core benefits, and strategic value to find the best fit for your organization's…
NISTNIST: Which Framework Best Supports Your Business?
July 1, 2025

NIST: Which Framework Best Supports Your Business?

NIST: Which Framework Best Supports Your Business? The National Institute of Standards and Technology (NIST) provides cybersecurity standards that help organizations strengthen security, manage risk, and comply with federal regulations.…
CMMCComplianceWhite Papers5 THINGS YOU SHOULD KNOW ABOUT CMMC ASSESSMENTS
May 29, 2025

5 THINGS YOU SHOULD KNOW ABOUT CMMC ASSESSMENTS

Prepare your organization for a successful Cybersecurity Maturity Model Certification (CMMC) assessment with these essential insights from an authorized C3PAO. In this whitepaper, we will evaluate: What Constitutes Controlled Unclassified…

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