ISO 27001:2022 Logging and Monitoring ISMS Policy Template

by Alex .

ISO 27001 defines a log as "a record of events important for the management and operation of an information system." A log file records all events on a computer system. These events include everything from system startup and shutdown to login and logout times. Each type of log file serves a different purpose. System logs, for example, can be used to monitor system performance, while application logs are used to monitor application usage. You can refer to the ISO 27001 standard if you are unsure what log files you require.

ISO 27001

Log files are an integral part of any ISMS that is ISO 27001-compliant. They are essential in helping organizations to investigate, identify, and resolve security incidents.

System log files and Application log files are the two most common types of logs used by ISMSs. Application log files are used to record events that occur on the application side. System log files, however, contain information about events occurring on the system.

Organizations need a management policy for log files that outlines how they will be archived, deleted, and stored. It is important to ensure that logs are reviewed regularly and that the appropriate actions are taken when security incidents occur.

ISO 27001:2022 Logging and Monitoring  ISMS  Policy Template

What is Log Management? Why is it Important?

Log management is the process of collecting and analyzing log files. Logs contain records of computer system events. They can be used to diagnose and troubleshoot issues. Log management is essential to maintaining the performance and health of a computer.

A log management system collects, parses, and stores logs from various sources. It can be used for monitoring the health of a computer system, detecting issues, and troubleshooting problems. The log management system can be used for compliance purposes such as auditing and other reporting forms.

System logs are divided into three types: application logs and security logs. System logs include information about the hardware, software, and operating system. Application logs include information about an application, including error messages and performance statistics. Security logs record events that may be harmful to a system.

It is essential to understand how logs work before you implement a system. Many different commercial and open-source log management systems are available.

What Events Should be Logged in ISO 27001

Understanding the purpose of logging is essential to determining which events are required in ISO 27001. Logging events can be used for detecting, diagnosing, and investigating incidents. The goal is to gather enough information to reconstruct the event and determine its root cause. The information gathered can be used in the future to prevent similar incidents.

Logging Events Should Fall into Four Categories:

  1. Security events: These events could threaten the organization's security. For example, an unauthorized attempt to access data or systems.
  2. System events are events that have to do with the system's working. For example, a crash or failure.
  3. Application events are related to the application's functionality, such as an error message.
  4. User events are related to the user, for example, login and logout times.

A.12.4.1 Event Logging

The process of recording and tracking system events is called event logging. This security activity is often used to diagnose and troubleshoot issues. Event logging monitors user activity, system errors, and application crashes. It can be used to monitor the performance of a system or detect malicious activities. Most event-logging software stores the log data in a centralized database. This database can also create reports and perform ad hoc queries. You can configure event logging systems to send alerts whenever certain events happen.

Logging events is an integral part of every security program. Administrators can track events to identify malicious patterns and prevent future attacks.

ISO 27001:2022 Logging and Monitoring  ISMS  Policy Template

A.12.4.2 Protection Log Information

A.12.4.2 states that log information should be protected to ensure confidentiality and integrity. This protection can be achieved in several ways, including:

  • Encrypting log information
  • Storing log information in a secure place
  • Maintaining tight control over who can access log information.
  • This provision is designed to prevent unauthorized persons from accessing or changing log information that could be used to conceal malicious activity.

Benefits of Logging and Monitoring

Modern businesses cannot function without logging and monitoring. You can avoid problems by tracking your system's activity and knowing exactly what is happening. You can save time and money by logging and monitoring. Logging and monitoring can have many benefits.

  • Logs allow you to track and monitor activity on your system in real time.
  • Logs can help prevent problems before they occur.
  • Logs can save you time and money by repairing problems before significant damage occurs.
  • Logs are essential to keep your system running smoothly.
  • You can use logs to learn about the inner workings of a system.
  • Logs help debug and troubleshoot problems.
  • You can use logs to monitor the performance of your system.
  • Logs can be used to detect security threats.

ISO 27001