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ICANN's Security Stability and Resiliency (SSR) Team Responds to Public Input on Domain Abuse Activity Reporting (DAAR) Reviews

LOS ANGELES – 1 February 2019 – Today, the Internet Corporation for Assigned Names and Numbers (ICANN) published a summary of the public input on the Domain Abuse Activity Reporting (DAAR) methodology. The Office of the Chief Technology Officer Security, Stability, and Resiliency (OCTO-SSR) Team carefully reviewed the recent public input submissions from the ICANN community and provided responses where relevant.

DAAR was designed to provide the ICANN community with reliable, persistent, and reproducible data from which security threat (abuse) analyses could be performed.

To foster confidence in the DAAR system, the ICANN organization has engaged two independent experts to review the methodology paper, comment on the threat data, and experiment with the reporting system.

To further incorporate community opinion on DAAR and the independent reviews, ICANN org asked for public input between 20 July 2018 and 24 August 2018. The findings and recommendations from the reviewers and parties who provided input will be considered in the final drafting of the methodology paper and future modifications to the DAAR system.

Below are links to the DAAR methodology paper, reviews, and public input:

About ICANN

ICANN's mission is to help ensure a stable, secure, and unified global Internet. To reach another person on the Internet, you need to type an address – a name or a number – into your computer or other device. That address must be unique so computers know where to find each other. ICANN helps coordinate and support these unique identifiers across the world. ICANN was formed in 1998 as a not-for-profit public-benefit corporation with a community of participants from all over the world.


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Internationalized Domain Name ,IDN,"IDNs are domain names that include characters used in the local representation of languages that are not written with the twenty-six letters of the basic Latin alphabet ""a-z"". An IDN can contain Latin letters with diacritical marks, as required by many European languages, or may consist of characters from non-Latin scripts such as Arabic or Chinese. Many languages also use other types of digits than the European ""0-9"". The basic Latin alphabet together with the European-Arabic digits are, for the purpose of domain names, termed ""ASCII characters"" (ASCII = American Standard Code for Information Interchange). These are also included in the broader range of ""Unicode characters"" that provides the basis for IDNs. The ""hostname rule"" requires that all domain names of the type under consideration here are stored in the DNS using only the ASCII characters listed above, with the one further addition of the hyphen ""-"". The Unicode form of an IDN therefore requires special encoding before it is entered into the DNS. The following terminology is used when distinguishing between these forms: A domain name consists of a series of ""labels"" (separated by ""dots""). The ASCII form of an IDN label is termed an ""A-label"". All operations defined in the DNS protocol use A-labels exclusively. The Unicode form, which a user expects to be displayed, is termed a ""U-label"". The difference may be illustrated with the Hindi word for ""test"" — परीका — appearing here as a U-label would (in the Devanagari script). A special form of ""ASCII compatible encoding"" (abbreviated ACE) is applied to this to produce the corresponding A-label: xn--11b5bs1di. A domain name that only includes ASCII letters, digits, and hyphens is termed an ""LDH label"". Although the definitions of A-labels and LDH-labels overlap, a name consisting exclusively of LDH labels, such as""icann.org"" is not an IDN."