S4x25 is Feb 11 – 13
JW Marriott Tampa Water Street
We’re excited to move S4 to Tampa for 2025. The JW Marriott is bigger and newer. We won’t need to limit the number of attendees. We will have bigger spaces for S4 Stages, Birds of a Feather events, industry meetings and other activities. While we will miss the Welcome Party and Cabana Sessions, the S4 Big Party on Wednesday night will offer even more than those past two events. Tampa is different too. Different vibe; different opportunities; and different challenges. It’s a great canvas for S4.
Check out the S4x25 page for key dates, sponsor information and the latest updates.
We still like Miami South Beach and will back there at least one more time for S4x26 (23-26 February 2026).
S4x25 Call For Presentations Opens In
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S4 is …
Optimistic … Forward Looking … Creative … Driving Change
Set free a conservative, slow moving, change resistant community to discover new ideas and come up with innovative ways to use these new ideas to deploy secure, resilient and better ICS.
After a Covid caused cancellation of S4x21, S4 came roaring back with a record 800 attendees and warmth of spirit at S4x22. S4x23 in February sold out with 1,100 attendees, and this will be the attendee limit for S4x24. More important than the numbers were the percentage of new and diverse talent we are seeing and the spirit that has been maintained at S4 despite the growth from 40 people in a small room in 2007.
The best way to understand how S4 is different is to come to the event. The second best way is to ask someone who has attended, obviously we are biased. S4 is not for everyone. If you are an early adopter, like to be on the leading edge, or enjoy hearing, considering and creating new ideas, then there is a good chance S4 will be a great event for you.
Create The Future of OT and ICS Security at S4
Lots Of New Faces Will Be On The S4x23 Stage
We have tried, since S4 began in 2007, to recognize and promote new talent in our speaker selection. The three stages at S4x23 will be full of new speakers. Here are some stats. Only 8 of the 57 speakers were on stage at S4x20 or S4x22 (S4x21 did not take place). And...
Interview with Michael Fischerkeller – Author of Cyber Persistence Theory
Cyber Persistence Theory represents a major change in how the US Government will operate in the cyber realm. Michael Fischerkeller, along with co-authors Emily Goldman and Richard Harknett, have written the book on this theory (note the forward is by Director of NSA...
S4x23 Theme – Explore
The S4 mantra is Create The Future. Every element of the event is considered in the context of will this help the influencers and leaders in the field create the future of OT and ICS security. Some years we will add to this with a theme to prod the community in a...
Last Week: Worthy Cause, Women In ICS Security, SBOM Challenge at S4x23
On December 15th we stop taking applications for three S4x23 activities: Women In ICS Security Sponsor ($2.5K) Show your support and help fund the women only social event on Monday early evening before S4x23. All sponsor funds go to this social event. Benefits are...
On Stage Interview: CESER Director Puesh Kumar
Another keynote announcement: Dale Peterson will interview US Department of Energy, Office of Cybersecurity, Energy Security, and Emergency Response (CESER) Director Puesh Kumar on the S4x23 Main Stage in Thursday's Keynote block. DoE, even well before CESER was...
S4x23 Ticket & Hotel Update
Three quick updates for those attending or considering S4x23 next Feb 13 - 16 in Miami South Beach. Ticket Prices Go Up $200 On December 1st Just before Thanksgiving we sold ticket #500 and are currently at ticket #528, but as a mini Cyber Monday sale we will hold the...