ISO/IEC 27018:2014 — Information technology — Security techniques — Code of practice for protection of Personally Identifiable Information (PII) in public clouds acting as PII processors
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.
The standard will be followed by ISO/IEC 27017 covering the wider information security angles of cloud computing, other than privacy.
The 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 organizations for implementing commonly accepted PII protection controls” [quoted from the DIS version].
The standard is primarily concerned with public-cloud computing service providers (such as Amazon Web Services and Google’s Compute Engine) 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” [from 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, 27001 and 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”.
Status of the standard
The standard was published in 2014.
A minor revision is nearing completion, currently at FDIS stage.
The standard is similar in style to ISO/IEC 27015 (the information security management guidelines for financial services) in that it builds on ISO/IEC 27002, expanding on 27002’s 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 pretty straightforward.
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