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 Private-Use TLDs (pdf, 469.27 KB)
Additional Documents:
Executive Summary(18 Sep 2020)
SAC 113 SAC 113 Root SystemAdvisory
18 Sep 2020
18 Sep 2020
Minority Statement on the Final Report of the Temporary Specification for gTLD Registration Data Phase 2 Expedited Policy Development Process (EPDP) (pdf, 274.51 KB)SAC 112 SAC 112 Registration ServicesComment
20 Aug 2020
20 Aug 2020
SSAC Comment on the Initial Report of the Temporary Specification for gTLD Registration Data Phase 2 Expedited Policy Development Process (pdf, 168.04 KB)SAC 111 SAC 111 Registration ServicesComment
4 May 2020
4 May 2020
SSAC Comments on the Second Security, Stability, and Resiliency (SSR2) Review Team Draft Report (pdf, 232.46 KB)SAC 110 SAC 110 Domain Name System (DNS) SecurityComment
19 Mar 2020
19 Mar 2020
The Implications of DNS over HTTPS and DNS over TLS (pdf, 313.58 KB)SAC 109 SAC 109 Domain Name System (DNS) SecurityReport
12 Mar 2020
12 Mar 2020
SSAC Comments on the IANA Proposal for Future Root Zone KSK Rollovers (pdf, 134.89 KB)SAC 108 SAC 108 Domain Name System (DNS) SecurityComment
29 Jan 2020
29 Jan 2020
SSAC Comment to NIST on Quantum Cryptography Algorithms (pdf, 133.07 KB)SAC 107 SAC 107 Domain Name System (DNS) SecurityComment
3 Dec 2019
3 Dec 2019
Comments on Evolving the Governance of the Root Server System (pdf, 104.96 KB)SAC 106 SAC 106 Root SystemComment
8 Aug 2019
8 Aug 2019
The DNS and the Internet of Things: Opportunities, Risks, and Challenges (pdf, 770.91 KB)
Additional Documents:
Executive Summary(28 May 2019)
SAC 105 SAC 105 Domain Name System (DNS) SecurityReport
28 May 2019
28 May 2019
SSAC Comment on Initial Report of the Temporary Specification for gTLD Registration Data Expedited Policy Development Process (pdf, 174.2 KB)SAC 104 SAC 104 Registration ServicesAdvisory
21 Dec 2018
21 Dec 2018
SSAC Response to the new gTLD Subsequent Procedures Policy Development Process Working Group Initial Report (pdf, 181.93 KB)SAC 103 SAC 103 PlanningAdvisory
3 Oct 2018
3 Oct 2018
SSAC Comment on the Updated Plan for Continuing the Root KSK Rollover (pdf, 84.74 KB)SAC 102 SAC 102 Domain Name System (DNS) SecurityComment
20 Aug 2018
20 Aug 2018
SSAC Advisory Regarding Access to Domain Name Registration Data (pdf, 313.4 KB)SAC 101 SAC 101 Registration ServicesAdvisory
14 Jun 2018
14 Jun 2018
SSAC Response to the New gTLD Subsequent Procedures Policy Development Process Working Group Request Regarding Root Scaling (pdf, 90.93 KB)SAC 100 SAC 100 Root SystemComment
22 Dec 2017
22 Dec 2017
SSAC Response to the ICANN Internationalized Domain Name Guidelines Working Group (pdf, 89.81 KB)SAC 099 SAC 099 Internationalized Domain Name (IDN)Comment
17 Nov 2017
17 Nov 2017
The Security, Stability and Resiliency of the DNS Review (SSR2) (pdf, 70.06 KB)SAC 098 SAC 098 Domain Name System (DNS) SecurityLetter
4 Oct 2017
4 Oct 2017
SSAC Advisory Regarding the Centralized Zone Data Service (CZDS) and Registry Operator Monthly Activity Reports (pdf, 324.35 KB)SAC 097 SAC 097 Registration ServicesAdvisory
12 Jun 2017
12 Jun 2017
SSAC Comment on the CCWG-Accountability-WS2 Draft Framework of Interpretation for Human Rights (pdf, 67.17 KB)SAC 096 SAC 096 PlanningComment
30 May 2017
30 May 2017
SSAC Response to the New gTLD Subsequent Procedures Policy Development Process (PDP) Working Group Community Comment 2 (pdf, 438.7 KB)SAC 094 SAC 094 PlanningComment
22 May 2017
22 May 2017
SSAC Comments on the Draft Recommendations of the CCWG-Accountability-WS2 on SO/AC Accountability (pdf, 123.46 KB)SAC 093 SAC 093 PlanningComment
18 May 2017
18 May 2017