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ISO/IEC 27018


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ISO/IEC 27018:2019 < Click to purchase via Amazon — Information technology — Security techniques — Code of practice for protection of Personally Identifiable Information (PII) in public clouds acting as PII processors (second edition)

 

Abstract

“This document establishes commonly accepted control objectives,  controls and guidelines for implementing measures to protect Personally  Identifiable Information (PII) in line with the privacy principles in  ISO/IEC 29100 for the public cloud computing environment. In particular, this document specifies guidelines based on ISO/IEC  27002, taking into consideration the regulatory requirements for the  protection of PII which can be applicable within the context of the  information security risk environment(s) of a provider of public cloud  services ...”
[Source: ISO/IEC 27018:2019]
 

Introduction

This standard provides guidance aimed at ensuring that cloud service providers (such as Amazon and Google) offer suitable information security controls to protect the privacy of their customers’ clients by securing Personally Identifiable Information entrusted to them.

See also ISO/IEC 27017 covering the wider information security angles of cloud computing, other than privacy.

The standard development project had widespread support from national standards bodies plus the Cloud Security Alliance.

 

Scope and purpose

The standard intends to be “a reference for selecting PII protection controls within the process of implementing a cloud computing information security management system based on ISO/IEC 27001, or as a guidance document for organisations for implementing commonly accepted PII protection controls”.

The standard is primarily concerned with public-cloud computing service providers acting as PII processors . “A public cloud service provider is a 'PII processor' when it processes PII for and according to the instructions of a cloud service customer” [according to the DIS version]. It does not officially cover PII principals (i.e. individuals processing their own PII in the cloud, for example using Google Drive) or PII controllers (i.e. cloud service customers processing PII of their clients/customers/employees and others in the cloud), although they clearly share many concerns and have an interest in the cloud service provider’s privacy controls.

The standard interprets rather than duplicates ISO/IEC 27002 in the context of securing personal data processed in the cloud. An annex extends 27002, for example advising cloud service providers to advise their customers if they use sub-contractors.

ISO/IEC 27000, ISO/IEC 27001 and ISO/IEC 27002 are cited as ‘normative’ (i.e. essential) standards, along with ISO/IEC 17788 “Cloud computing - overview and vocabulary” and ISO/IEC 29100 “Privacy framework” (a free download!).

 

Status of the standard

The first edition was published in 2014.

The current second edition (a minor revision) was published in 2019.

Oct update A further revision to reflect ISO/IEC 27002:2022 looks likely to be published by early 2025. It has passed a vote at Draft International Standard stage with a slew of mostly editorial comments to bring it into alignment with the ISO house style. The title is to become “Information security, cybersecurity and privacy protection - Guidelines for protection of personally identifiable information (PII) in public clouds acting as PII processors”

 

Personal comments

The standard builds on ISO/IEC 27002, expanding on its generic advice in a few areas, and referring to the OECD privacy principles that are enshrined in several privacy laws and regulations.

In most sections, it simply says:
 

“The objectives specified in, and the contents of,
clause
[whatever] of ISO/IEC 27002 apply.”

 

The expansions or additions are straightforward - no surprises here.

 

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