Security and Stability Advisory Committee (SSAC)

The SSAC is a volunteer group of specialists in the technical security field that provides advice and insight to the ICANN community and the Board.

SSAC Publications

The SSAC produces reports, correspondence, and comments on a range of topics. The SSAC undertakes ongoing risk analysis to identify a prioritized list of topics for SSAC work. However, the ICANN Board, Advisory Committees (ACs), Supporting Organizations (SOs) or other bodies within ICANN may request that the SSAC review, comment, or give feedback on a specific topic or issue at any time.

Reports are focused on providing information, recommendations, and advice on technical security, stability, and resiliency (SSR) issues to the ICANN Board, the ICANN community, and the broader internet community. They may investigate emerging or long-term issues or could be published in response to a security event or incident, where timely notification to the community is a priority concern. They may be informational without any findings or recommendations or they could contain specific recommendations for the ICANN Board or community, and if appropriate, organized according to the groups to which they are most applicable.

Correspondence comprises letters, comments, and other documents on administrative, community, and other non-SSR issues and are normally signed by the SSAC Chair. They may take the form of a letter or a response submitted to a public comment forum. They may present recommendations regarding the issue.

Comments are prepared in response to explicit questions posed to or requests made to the SSAC, or as a response to ICANN’s public comment forum. Comments may be brief or long, depending on the issue and the extent to which the SSAC studies it.

A goal of the SSAC is to ensure that its work results in specific actions whenever possible. In order to measure progress towards this goal, the SSAC tracks any effects of each recommendation. For documents that contain recommendations for the ICANN Board, the Board Action Request Register (ARR) captures the information required to understand the status of advice and tracks it from when it is given through implementation.

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SSAC Advisory on DNSSEC Key Rollover in the Root Zone (English) (pdf, 479.74 KB)SAC 063 SAC 063 Domain Name System (DNS) SecurityAdvisory
7 Nov 2013
7 Nov 2013
SSAC Advisory Concerning the Mitigation of Name Collision Risk (English) (pdf, 375.4 KB)SAC 062 SAC 062 Domain Name System (DNS) SecurityAdvisory
7 Nov 2013
7 Nov 2013
SSAC Comment on ICANN's Initial Report from the Expert Working Group on gTLD Directory Services (English) (pdf, 384.36 KB)SAC 061 SAC 061 Registration ServicesComment
9 Sep 2013
9 Sep 2013
SSAC Comment on Examining the User Experience Implications of Active Variant TLDs Report (English) (pdf, 655.12 KB)SAC 060 SAC 060 Internationalized Domain Name (IDN)Comment
23 Jul 2013
23 Jul 2013
SSAC Letter to the ICANN Board Regarding Interdisciplinary Studies (English) (pdf, 174.55 KB)SAC 059 SAC 059 Root SystemLetter
18 Apr 2013
18 Apr 2013
SSAC Report on Domain Name Registration Data Validation (English) (pdf, 489.12 KB)SAC 058 SAC 058 Registration ServicesReport
27 Mar 2013
27 Mar 2013
SSAC Advisory on Internal Name Certificates (English) (pdf, 1.14 MB)SAC 057 SAC 057 Domain Name System (DNS) AbuseAdvisory
15 Mar 2013
15 Mar 2013
SSAC Advisory on Impacts of Content Blocking via the Domain Name SystemSAC 056 SAC 056 Domain Name System (DNS) SecurityAdvisory
9 Oct 2012
9 Oct 2012
SSAC Comment on the WHOIS Review Team Final Report (English) (pdf, 347.3 KB)SAC 055 SAC 055 WHOISComment
14 Sep 2012
14 Sep 2012
SSAC Letter to the ICANN Board on the New Generic Top Level Domain (gTLD) Process (English) Root SystemLetter
2 Jul 2012
2 Jul 2012
SSAC Report on the Domain Name Registration Data ModelSAC 054 SAC 054 WHOISReport
11 Jun 2012
11 Jun 2012
SSAC Comment on the ICANN FY13 Budget: Impact on SSAC Productivity (English) (pdf, 175.42 KB) PlanningComment
8 Jun 2012
8 Jun 2012
SSAC Comment on the ICANN Draft Roadmap to Implement SAC 051 (English) (pdf, 68.53 KB) WHOISComment
5 Apr 2012
5 Apr 2012
SSAC Report on Dotless Domains (English) (pdf, 182.5 KB)SAC 053 SAC 053 Domain Name System (DNS) SecurityReport
23 Feb 2012
23 Feb 2012
SSAC Advisory on Delegation of Single-Character Internationalized Domain Name Top-Level Domains (English) (pdf, 188.65 KB)SAC 052 SAC 052 Internationalized Domain Name (IDN)Advisory
31 Jan 2012
31 Jan 2012
SSAC Report on WHOIS Terminology and Structure (English) (pdf, 236.46 KB)SAC 051 SAC 051 WHOISReport
19 Sep 2011
19 Sep 2011
DNS Blocking: Benefits Versus Harms – An Advisory from the Security and Stability Advisory Committee on Blocking of Top Level Domains at the Domain Name SystemSAC 050 SAC 050 Domain Name System (DNS) SecurityAdvisory
14 Jun 2011
14 Jun 2011
SSAC Report on DNS Zone Risk Assessment and Management (English) (pdf, 195.5 KB)SAC 049 SAC 049 Registration ServicesReport
3 Jun 2011
3 Jun 2011
SSAC Comment on the Orphan Glue Records in the Draft Applicant Guidebook (English) (pdf, 162.1 KB)SAC 048 SAC 048 Domain Name System (DNS) AbuseComment
12 May 2011
12 May 2011
SSAC Comment on the ICANN gTLD Registry Transition Processes Model (English) (pdf, 197.24 KB)SAC 047 SAC 047 Registration ServicesComment
15 Apr 2011
15 Apr 2011