HIPAA vs SOC 2 vs ISO 27001 — Which One Do Your Customers Actually Want?

You're growing your business and customers are starting to ask about your security certifications. The problem? Different customers ask for different things.

One prospect wants to know if you're HIPAA compliant. Another asks for your SOC 2 report. A third mentions ISO 27001. And you're left wondering: what's the difference, do I need all three, and which one should I prioritize?

This guide breaks down the three most common security frameworks, explains what each one actually proves, and helps you figure out which certifications your business actually needs.

The Quick Comparison

Here's the 30-second overview:

Now let's dive deeper into each framework.

HIPAA: The Healthcare-Specific Rule

What HIPAA Actually Is

HIPAA (Health Insurance Portability and Accountability Act) is a U.S. federal law, not a voluntary certification. If you handle protected health information (PHI), you're legally required to comply—there's no opt-out.

HIPAA applies to two types of organizations:

• Covered entities: Healthcare providers, health plans, and healthcare clearinghouses
• Business associates: Any vendor that handles PHI on behalf of a covered entity (that might be you)

What HIPAA Requires

HIPAA has three main rules:

1. 1. Privacy Rule — Limits how PHI can be used and disclosed
2. 2. Security Rule — Requires administrative, physical, and technical safeguards to protect electronic PHI (ePHI)
3. 3. Breach Notification Rule — Mandates notification if PHI is compromised

Key security controls include:

• Access controls and unique user IDs
• Encryption of data at rest and in transit
• Audit logs tracking who accessed what data
• Risk assessments and security policies
• Employee training on HIPAA requirements
• Business Associate Agreements (BAAs) with vendors

The HIPAA "Compliance" Catch

Here's what confuses people: there's no official HIPAA certification.

You don't get a certificate from the government saying you're compliant. Instead, you implement required safeguards, document your policies, and sign BAAs with healthcare customers.

Some vendors offer "HIPAA compliance audits" or certifications, but these are third-party assessments—helpful for confidence, but not legally required or officially recognized.

Who Needs HIPAA

You need HIPAA compliance if:

• You're a healthcare provider, insurance company, or pharmacy
• You provide services to healthcare organizations and handle patient data (EHR vendors, medical billing companies, telehealth platforms, cloud storage for medical records)
• A healthcare customer asks you to sign a Business Associate Agreement

You don't need HIPAA if:

• You don't handle any health information
• Your health-related app is direct-to-consumer wellness (fitness trackers, meditation apps, etc.) and not connected to healthcare providers

Note: Even wellness apps may need to comply with FTC health breach notification rules—but that's different from HIPAA.

SOC 2: The SaaS Security Standard

What SOC 2 Actually Is

SOC 2 (System and Organization Controls 2) is an auditing framework developed by the American Institute of CPAs (AICPA). It's designed specifically for service providers that store customer data in the cloud.

Unlike HIPAA, SOC 2 is voluntary. But for B2B SaaS companies, it's become the de facto requirement to win enterprise customers.

What SOC 2 Evaluates

SOC 2 audits your company against the Trust Service Criteria:

1. 1. Security (required) — Protection against unauthorized access
2. 2. Availability (optional) — System uptime and reliability
3. 3. Processing Integrity (optional) — Complete, accurate, timely processing
4. 4. Confidentiality (optional) — Protection of confidential information
5. 5. Privacy (optional) — Handling of personal information per your privacy notice

Most companies pursue Security + Availability.

Two audit types:

• Type I: Point-in-time assessment (controls exist on a specific date)
• Type II: Continuous monitoring over 6-12 months (controls operate effectively over time)

Customers typically want Type II because it proves sustained compliance, not just a one-day snapshot.

What SOC 2 Requires

SOC 2 doesn't prescribe specific controls—instead, you implement what's appropriate for your business. Common controls include:

• Multi-factor authentication (MFA)
• Encryption in transit and at rest
• Regular vulnerability scanning and penetration testing
• Background checks for employees
• Incident response procedures
• Vendor management program
• Change management for code deployments

An independent CPA firm audits your controls, interviews your team, and tests whether controls operate as documented.

Who Needs SOC 2

You need SOC 2 if:

• You're a SaaS company selling to enterprise customers
• Prospects are asking for your SOC 2 report during sales
• You handle sensitive customer data (financial, personal, proprietary business data)
• You want to streamline vendor security reviews

You probably don't need SOC 2 (yet) if:

• You're early-stage and only selling to individuals or small businesses
• Your customers aren't asking for formal compliance
• You're building internal tools that don't serve external customers

ISO 27001: The Global Security Framework

What ISO 27001 Actually Is

ISO 27001 is an international standard for information security management systems (ISMS). It's published by the International Organization for Standardization (ISO) and is recognized worldwide.

Think of ISO 27001 as the most comprehensive and globally accepted security framework—but also the most expensive and time-consuming to achieve.

What ISO 27001 Requires

ISO 27001 focuses on building a complete information security management system:

• Risk assessment methodology — Identify and evaluate security risks
• Risk treatment plan — Document how you'll address each risk
• 93 security controls (Annex A) — Choose applicable controls from categories like access control, cryptography, physical security, and incident management
• Continuous improvement — Regular reviews, internal audits, and management oversight

Unlike SOC 2, which evaluates whether your controls work, ISO 27001 also evaluates whether you have a systematic process for managing security over time.

The ISO 27001 Certification Process

Getting ISO 27001 certified involves:

1. 1. Build your ISMS (6-12 months)
2. 2. Conduct internal audits
3. 3. Hire a certification body to audit your ISMS
4. 4. Pass Stage 1 audit (document review)
5. 5. Pass Stage 2 audit (implementation review)
6. 6. Receive certification (valid for 3 years)
7. 7. Annual surveillance audits to maintain certification

Cost: $30,000-$100,000+ for initial certification, including consulting, internal effort, and audit fees.

Who Needs ISO 27001

You need ISO 27001 if:

• You're selling to international customers, especially in Europe
• You're pursuing government contracts (some require ISO 27001)
• Your industry has heightened security requirements (finance, critical infrastructure)
• You operate in multiple countries and want one globally-recognized certification

You probably don't need ISO 27001 if:

• You primarily serve U.S. customers (SOC 2 is more common domestically)
• You're a small or mid-sized company without international reach
• The cost and complexity outweigh the business benefit

How to Choose: Decision Framework

If You Handle Healthcare Data in the U.S.

Start with HIPAA. It's legally required if you're a business associate. You can pursue SOC 2 later to satisfy non-healthcare customers, but HIPAA compliance is non-negotiable for healthcare work.

If You're a U.S.-Based SaaS Company

Prioritize SOC 2. It's what enterprise customers expect, and it's more cost-effective than ISO 27001 for domestic sales. If you expand internationally later, you can add ISO 27001.

If You're Selling Globally or to Governments

Consider ISO 27001. The international recognition opens doors that SOC 2 alone cannot. You might eventually hold both—SOC 2 for U.S. customers and ISO 27001 for international markets.

If You're in Finance or Critical Infrastructure

Evaluate both SOC 2 and ISO 27001. Some customers accept either; others require specific frameworks. Talk to your target customers before investing.

Can You Have More Than One?

Absolutely. In fact, many mature companies hold multiple certifications:

• HIPAA + SOC 2: Common for healthtech SaaS companies (HIPAA covers the healthcare data, SOC 2 reassures all customers)
• SOC 2 + ISO 27001: Companies selling globally often hold both (SOC 2 for U.S., ISO for Europe and APAC)
• All three: Large, multi-market companies with diverse customer bases

But start with one. Get the certification your customers are actively requesting, then expand your compliance program as your business grows.

What About Other Frameworks?

You might also encounter:

• PCI DSS: Required if you process, store, or transmit credit card data
• FedRAMP: Required for selling cloud services to U.S. federal agencies
• GDPR/CCPA compliance: Privacy regulations (not security certifications, but often required alongside security frameworks)
• NIST Cybersecurity Framework: Risk-based guidance often used by critical infrastructure and government contractors

These aren't alternatives to HIPAA, SOC 2, or ISO 27001—they're additional requirements depending on your industry and customer base.

The Bottom Line: Listen to Your Customers

The best way to know which certification you need is simple: ask your customers and prospects what they require.

During your sales conversations, ask:

• "Do you have vendor security requirements we should know about?"
• "Do you need SOC 2, ISO 27001, or other certifications?"
• "What compliance documentation do you review during procurement?"

Their answers will tell you whether to invest in HIPAA compliance, pursue SOC 2, or go for ISO 27001.

Don't guess. Certifications are expensive and time-consuming. Make sure you're building toward what your market actually demands.

Your Next Step

If multiple customers are asking for the same certification, it's time to get serious about compliance.

Start by:

1. 1. Documenting what you already do for security
2. 2. Identifying gaps between current state and certification requirements
3. 3. Building a roadmap with realistic timelines and budget

Compliance isn't a one-time project—it's an ongoing commitment. But done right, it becomes a competitive advantage that shortens sales cycles and opens doors to enterprise customers.

Ready to start your compliance journey? VylintShield guides you through HIPAA, SOC 2, and ISO 27001 requirements with step-by-step checklists. Learn more →