IEC 62443 helps to protect industrial automation and control systems from security breaches. Read on to learn more about the standard.
What You Need to Know About IEC 62443
IEC 62443 is a set of security standards for the secure development of Industrial Automation and Control Systems (IACS) that provides a thorough and systematic set of cybersecurity recommendations. The security standard is used to defend industrial networks against cybersecurity vulnerabilities.
The IEC 62443 Security Levels
A central part of IEC 62443 are security levels (SL), which are used to assess the cybersecurity risks to each system. An additional benefit of security levels is that they help you to understand how to best address the identified cybersecurity risks. There are five security level values, which range from 0 (the minimum level of risk) to 4 (the maximum level of risk).
The 7 Security Level Foundational Requirements
For each security level, there are seven specific foundational requirements that must be met. These requirements help you to ensure that each IACS has the right security and safety safeguards.
The seven foundational requirements for a security level are:
- Identification and Authentication Control
- Use Control
- System Integrity
- Data Confidentiality
- Restricted Data Flow
- Timely Response to Events
- Resource Availability
In addition, each foundational requirement has multiple conditions that must also be met, depending on the safety level.
What You Need to Know to Comply with IEC 62443
An essential part of complying with IEC 62443 is using a static code analysis tool. Static code analysis tools automatically identify vulnerabilities and defects as you code. In addition, IEC 62443 requires that a static analysis tool be used to enforce secure coding standards, such as CWE, CERT, and OWASP. By using secure coding standards, you ensure your software is secure and safeguarded from vulnerabilities.
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