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 Report on the Evolution of Internet Name Resolution (English) (pdf, 439.88 KB)SAC123 SAC123 Domain Name System (DNS) SecurityReport
15 Dec 2023
15 Dec 2023
SSAC Report on Urgent Requests in the gTLD Registration Data Policy (English) (pdf, 166.24 KB)SAC122 SAC122 Domain Name System (DNS) SecurityReport
12 Dec 2023
12 Dec 2023
SSAC Briefing on Routing Security (English) (pdf, 648.1 KB)SAC 121 SAC 121 Domain Name System (DNS) SecurityReport
9 Jun 2022
9 Jun 2022
SSAC Input to GNSO IDN EPDP on Internationalized Domain Name Variants (English) (pdf, 195.52 KB)SAC 120 SAC 120 Internationalized Domain Name (IDN)Report
28 Apr 2022
28 Apr 2022
Feedback to the GNSO Transfer Policy Review PDP WG (English) (pdf, 121.14 KB)SAC 119 SAC 119 Registration ServicesComment
5 Aug 2021
5 Aug 2021
SSAC Comments on Initial Report of the Expedited Policy Development Process (EPDP) on the Temporary Specification for gTLD Registration Data Team – PHASE 2A (English) (pdf, 250.07 KB)SAC 118 SAC 118 Registration ServicesComment
15 Jul 2021
15 Jul 2021
Report on Root Service Early Warning Systems (English) (pdf, 205.82 KB)SAC 117 SAC 117 Root SystemReport
13 Jul 2021
13 Jul 2021
SSAC Comments on the Second Security, Stability, and Resiliency (SSR2) Review Team Final Report (English) (pdf, 114.57 KB)SAC 116 SAC 116 Domain Name System (DNS) SecurityComment
22 Mar 2021
22 Mar 2021
SSAC Report on an Interoperable Approach to Addressing Abuse Handling in the DNS (English) (pdf, 731.38 KB)SAC 115 SAC 115 Domain Name System (DNS) AbuseReport
19 Mar 2021
19 Mar 2021
SSAC Comments on the GNSO New gTLD Subsequent Procedures Draft Final Report (English) (pdf, 397.67 KB)SAC 114 SAC 114 Domain Name System (DNS) SecurityComment
11 Feb 2021
11 Feb 2021
SSAC Advisory on Private-Use TLDs (English) (pdf, 469.27 KB)SAC 113 SAC 113 Root System
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) (English) (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 (English) (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 (English) (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 (English) (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 (English) (pdf, 134.89 KB)SAC 108 SAC 108 Root SystemComment
29 Jan 2020
29 Jan 2020
SSAC Comment to NIST on Quantum Cryptography Algorithms (English) (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 (English) (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 (English) (pdf, 770.91 KB)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 (English) (pdf, 174.2 KB)SAC 104 SAC 104 Registration ServicesAdvisory
21 Dec 2018
21 Dec 2018