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 Comment on the Cross Community Working Group on Naming Related Functions ProposalSAC 072 SAC 072 PlanningComment
24 Jun 2015
24 Jun 2015
SSAC Comments on Cross Community Working Group Proposal on ICANN Accountability EnhancementsSAC 071 SAC 071 PlanningReport
8 Jun 2015
8 Jun 2015
SSAC Advisory on the Use of Static TLD / Suffix Lists
Additional Documents:
Executive Summary(28 May 2015)
SAC 070 SAC 070 Domain Name System (DNS) SecurityAdvisory
28 May 2015
28 May 2015
SSAC Advisory on Maintaining the Security and Stability of the IANA Functions Through the Stewardship TransitionSAC 069 SAC 069 Root SystemAdvisory
10 Dec 2014
10 Dec 2014
SSAC Report on the IANA Functions ContractSAC 068 SAC 068 Root SystemReport
10 Oct 2014
10 Oct 2014
Overview and History of the IANA FunctionsSAC 067 SAC 067 Root SystemReport
15 Aug 2014
15 Aug 2014
SSAC Comment Concerning JAS Phase One Report on Mitigating the Risk of DNS Namespace Collisions (pdf, 305.44 KB)
Additional Documents:
Executive Summary(6 Jun 2014)
SAC 066 SAC 066 Domain Name System (DNS) SecurityComment
6 Jun 2014
6 Jun 2014
SSAC Advisory on DDoS Attacks Leveraging DNS Infrastructure (pdf, 422.97 KB)
Additional Documents:
Executive Summary(18 Feb 2014)
SAC 065 SAC 065 Domain Name System (DNS) AbuseAdvisory
18 Feb 2014
18 Feb 2014
SSAC Advisory on Search List Processing (pdf, 930.87 KB)SAC 064 SAC 064 Domain Name System (DNS) SecurityAdvisory
13 Feb 2014
13 Feb 2014
SSAC Advisory Concerning the Mitigation of Name Collision Risk (pdf, 375.4 KB)
Additional Documents:
Executive Summary(7 Nov 2013)
SAC 062 SAC 062 Domain Name System (DNS) SecurityAdvisory
7 Nov 2013
7 Nov 2013
SSAC Advisory on DNSSEC Key Rollover in the Root Zone (pdf, 479.74 KB)
Additional Documents:
Executive Summary(7 Nov 2013)
SAC 063 SAC 063 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 (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 (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 (pdf, 174.55 KB)SAC 059 SAC 059 Root SystemLetter
18 Apr 2013
18 Apr 2013
SSAC Report on Domain Name Registration Data Validation (pdf, 489.12 KB)SAC 058 SAC 058 Registration ServicesReport
27 Mar 2013
27 Mar 2013
SSAC Advisory on Internal Name Certificates (pdf, 1.14 MB)
Additional Documents:
Executive Summary(15 Mar 2013)
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 System
Additional Documents:
Executive Summary(9 Oct 2012)
SAC 056 SAC 056 Domain Name System (DNS) SecurityAdvisory
9 Oct 2012
9 Oct 2012
SSAC Comment on the WHOIS Review Team Final Report (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 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