I wanted to make sure you were all aware of several notices issued which came just before and after the root key change over for DNS. Bad actors with access to the older private key root (if compromised) may have been motivated to strike before the key change over. https://www.cyberscoop.com/dhs-dns-directive-government-shutdown/ This alert went out the day before change over on January 10th, 2019. https://www.us-cert.gov/ncas/current-activity/2019/01/10/DNS-Infrastructure-... This alert on January 22nd, 2019 https://cyber.dhs.gov/ed/19-01/ This alert was issued yesterday https://www.us-cert.gov/ncas/alerts/AA19-024A The timing of this change over taking place roughly 2+ weeks after the U.S. Government Shutdown is a little unfortunate, since the switch over date may have encouraged attacks before the old key was revoked. I do think the re-key is a good idea, and agree with Tony Finch on the concept of "[I favour annual rollovers, with keys generated and promulgated out of band a few years in advance, and at most two KSKs in the root zone at any time.]" I welcome any comments. Lee Neubecker, CISSP President & CEO GreatLakesForensics.com 65 W. Jackson Blvd., Suite 101 Chicago, IL 60604 Toll Free/Fax: 888-503-0665 https://greatlakesforensics.com Computer Forensics · Cyber Security Readiness & Response · Online Identity Investigations Check out my security blog at https://leeneubecker.com