
The cost of an internal auditor under ISO 27001 depends on the scope of the information security management system.
Key factors include organization size, number of sites, and process complexity.
The average daily rate for a qualified internal auditor is typically around EUR 800 to 1,500 per audit day.
The total cost depends on the number of audit days required.
Internal audits are a mandatory requirement of ISO 27001.
Since 2013, we have been operating as a technical inspection and conformity assessment body, conducting product, system, and personnel certification activities in accordance with applicable international and national standards, and in line with the principles of impartiality, independence, and reliability.
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