Security Compliance - SOC 2, ISO 27001, PCI DSS

About 2 min read

Security compliance is the activity of maintaining and demonstrating security measures that conform to laws, industry standards, and internal policies. The regulations you must comply with differ depending on your industry and the type of data you handle, such as personal information protection laws, the GDPR, PCI DSS, and HIPAA. As of 2025, countries around the world continue to strengthen data protection regulations, making compliance increasingly important.

Real-World Use Cases

"For our SOC 2 Type II audit, we submitted access logs, change management records, and incident response records covering the past 12 months. Because we had built a system to automatically collect evidence on a routine basis, the effort required to prepare for the audit was less than half of the previous year."

The Relationship Between Compliance and GDPR

Compliance is the general term for "adherence to laws and regulations," and the GDPR is one specific regulation within it. The GDPR is a regulation specialized in protecting personal data within the EU, but the scope of compliance is not limited to it. Organizations must comply with multiple regulations at the same time, such as personal information protection laws for Japanese companies, PCI DSS for those handling credit cards, and HIPAA (U.S.) or medical information guidelines (Japan) for medical data.introductory books on compliance (Amazon) offer a systematic way to learn.

Major Frameworks and Standards

ISO 27001 is the international standard for information security management systems (ISMS); obtaining certification demonstrates external credibility. SOC 2 is an audit standard for cloud service providers, evaluated against five trust principles: security, availability, processing integrity, confidentiality, and privacy. The NIST CSF (Cybersecurity Framework), which originated in the U.S., organizes security measures around five functions: Identify, Protect, Detect, Respond, and Recover. A corporate password policy is a fundamental measure required by all of these frameworks.

Key Points for Compliance

Compliance is not a "obtain it once and you are done" exercise; it requires continuous maintenance and improvement. Managing evidence is crucial, including annual security audits, periodic risk assessments, and records of employee training. Penalties for violations are severe: under the GDPR, fines can reach up to 4% of annual global revenue or 20 million euros. Protect all systems with strong, unique passwords for each service, and address industry-specific requirements such as medical data protection.books on ISMS (Amazon) are also a useful reference.