Chris Sistrunk
@chrissistrunk.bsky.social
Husband, Dad, ⚡EE⚡, OT Security,
Technical Leader @Mandiant.com,
Ex-Entergy 💡, BEER-ISAC #002, LaTech Alum
#BBQ, Bourbon, Mississippi Sippers 🥃🦟, weirdo
klugemeister, #sockstatus, #dadjokes #DJaaS
#NAPCON Keynote
📍 Mississippi, y'all
Technical Leader @Mandiant.com,
Ex-Entergy 💡, BEER-ISAC #002, LaTech Alum
#BBQ, Bourbon, Mississippi Sippers 🥃🦟, weirdo
klugemeister, #sockstatus, #dadjokes #DJaaS
#NAPCON Keynote
📍 Mississippi, y'all
Pinned
Please allow me to introduce myself to those who might not know me.
My name is Chris. I live in Mississippi. I'm a Technical Leader for ICS/OT security consulting at Mandiant (now Google) for 10+ years I was an electrical engineer for a power company for 11+ years. I'm a registered PE.
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My name is Chris. I live in Mississippi. I'm a Technical Leader for ICS/OT security consulting at Mandiant (now Google) for 10+ years I was an electrical engineer for a power company for 11+ years. I'm a registered PE.
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Aurora Borealis in Mississippi
November 12, 2025 at 3:29 AM
Aurora Borealis in Mississippi
The End of Windows 10: What Does it Mean for Industrial Control Systems?
www.linkedin.com/pulse/end-wi...
www.linkedin.com/pulse/end-wi...
The End of Windows 10: What Does it Mean for Industrial Control Systems?
If you aren't aware, Microsoft announced that Windows 10 will reach end-of-support (EOS) next Tuesday, October 14, 2025. That means for most Windows 10 PC installations, they will not receive patches ...
www.linkedin.com
October 9, 2025 at 12:07 AM
The End of Windows 10: What Does it Mean for Industrial Control Systems?
www.linkedin.com/pulse/end-wi...
www.linkedin.com/pulse/end-wi...
Be kind to others...of course. But be kind to yourself, too.
September 26, 2025 at 3:13 PM
Be kind to others...of course. But be kind to yourself, too.
Good morning! Coffee is good, but it's even better when you have coffee with a friend. ☕☕
September 25, 2025 at 12:19 PM
Good morning! Coffee is good, but it's even better when you have coffee with a friend. ☕☕
September 24, 2025 at 6:10 PM
LIFE-work balance, not the other way around
September 23, 2025 at 4:18 PM
LIFE-work balance, not the other way around
When your cold (obtained from the VirusTotal 🦠 toddlers) escalates to where you need a steroid shot and 5 day regimen of steroid pills. #jittery
a toy story character named buzz lightyear is standing in front of a globe
ALT: a toy story character named buzz lightyear is standing in front of a globe
media.tenor.com
September 17, 2025 at 12:48 PM
When your cold (obtained from the VirusTotal 🦠 toddlers) escalates to where you need a steroid shot and 5 day regimen of steroid pills. #jittery
September 6, 2025 at 10:26 PM
Happy Friday, y'all!
August 29, 2025 at 9:33 PM
Happy Friday, y'all!
Reposted by Chris Sistrunk
The CFP will be open until September 26th. Send us your spiciest talks on cyberattack, IO, targeting of critical infrastructure, Sandworm, Volt Typhoon, election shenanigans or whatever you're tracking that needs to see the light of day. We pay speakers!
August 28, 2025 at 5:35 PM
The CFP will be open until September 26th. Send us your spiciest talks on cyberattack, IO, targeting of critical infrastructure, Sandworm, Volt Typhoon, election shenanigans or whatever you're tracking that needs to see the light of day. We pay speakers!
Yo! #CYBERWARCON CFP & Reg is LIVE! You know what to do. AI can't do it for you...or wear these socks.
@hultquist.bsky.social @cyberwarcon.bsky.social
@hultquist.bsky.social @cyberwarcon.bsky.social
August 29, 2025 at 7:32 PM
Yo! #CYBERWARCON CFP & Reg is LIVE! You know what to do. AI can't do it for you...or wear these socks.
@hultquist.bsky.social @cyberwarcon.bsky.social
@hultquist.bsky.social @cyberwarcon.bsky.social
Reposted by Chris Sistrunk
It's not just Bluesky anymore: Dreamwidth to start blocking Mississippi as of Sept 1
dw-news.dreamwidth.org/44429.html
dw-news.dreamwidth.org/44429.html
August 28, 2025 at 3:14 PM
It's not just Bluesky anymore: Dreamwidth to start blocking Mississippi as of Sept 1
dw-news.dreamwidth.org/44429.html
dw-news.dreamwidth.org/44429.html
I don't throw the 🍞 heels out, do you?
August 24, 2025 at 5:37 PM
I don't throw the 🍞 heels out, do you?
Reposted by Chris Sistrunk
Hey friends, I have decided to open myself up to taking on some #freelance writing work again in the B2B security space again while job hunting. If you of anyone looking for some marketing or content support, please send them my way! Thanks! 🙏
August 24, 2025 at 4:11 PM
Hey friends, I have decided to open myself up to taking on some #freelance writing work again in the B2B security space again while job hunting. If you of anyone looking for some marketing or content support, please send them my way! Thanks! 🙏
August 23, 2025 at 10:58 PM
Reposted by Chris Sistrunk
With legal challenges to this law pending, we cannot justify building the expensive required infrastructure.
For now, we have made the difficult decision to block access in Mississippi.
To learn more, read our blog post:
For now, we have made the difficult decision to block access in Mississippi.
To learn more, read our blog post:
Our Response to Mississippi’s Age Assurance Law - Bluesky
A new Mississippi law requires us to block full access to Bluesky unless all users complete age checks. We have concerns about this law’s implementation.
bsky.social
August 22, 2025 at 7:55 PM
With legal challenges to this law pending, we cannot justify building the expensive required infrastructure.
For now, we have made the difficult decision to block access in Mississippi.
To learn more, read our blog post:
For now, we have made the difficult decision to block access in Mississippi.
To learn more, read our blog post:
Reposted by Chris Sistrunk
Unfortunately, Bluesky is unavailable in Mississippi right now, due to a new state law that requires age verification for all users.
While intended for child safety, we think this law poses broader challenges & creates significant barriers that limit free speech & harm smaller platforms like ours.
While intended for child safety, we think this law poses broader challenges & creates significant barriers that limit free speech & harm smaller platforms like ours.
August 22, 2025 at 7:54 PM
Unfortunately, Bluesky is unavailable in Mississippi right now, due to a new state law that requires age verification for all users.
While intended for child safety, we think this law poses broader challenges & creates significant barriers that limit free speech & harm smaller platforms like ours.
While intended for child safety, we think this law poses broader challenges & creates significant barriers that limit free speech & harm smaller platforms like ours.
My wife loves golf & today's our 6th anniversary...so she took me to play with her. It's my 2nd time ever playing. I scored a 122! ⛳🏌️♂️
I played like a clown on fire...kinda funny, kinda sad. 🔥🤡🔥
#love #marriage #golf #sockstatus #JXN #Mississippi #Tudor
I played like a clown on fire...kinda funny, kinda sad. 🔥🤡🔥
#love #marriage #golf #sockstatus #JXN #Mississippi #Tudor
August 15, 2025 at 6:44 PM
My wife loves golf & today's our 6th anniversary...so she took me to play with her. It's my 2nd time ever playing. I scored a 122! ⛳🏌️♂️
I played like a clown on fire...kinda funny, kinda sad. 🔥🤡🔥
#love #marriage #golf #sockstatus #JXN #Mississippi #Tudor
I played like a clown on fire...kinda funny, kinda sad. 🔥🤡🔥
#love #marriage #golf #sockstatus #JXN #Mississippi #Tudor
The ghost of Charley Patton is round here somewhere. #Mississippi #Blues
August 13, 2025 at 12:33 AM
The ghost of Charley Patton is round here somewhere. #Mississippi #Blues
ICYMI 🎩
Here are my slides from last week at Black Hat covering the ICS/OT Threat Landscape.
Thanks to my @mandiant.com & GTIG colleagues for helping with the data in this presentation. Thanks @emmamstewart.bsky.social @blackhatevents.bsky.social for the invite.
www.slideshare.net/slideshow/bl...
Here are my slides from last week at Black Hat covering the ICS/OT Threat Landscape.
Thanks to my @mandiant.com & GTIG colleagues for helping with the data in this presentation. Thanks @emmamstewart.bsky.social @blackhatevents.bsky.social for the invite.
www.slideshare.net/slideshow/bl...
Black Hat USA 2025 - Micro ICS Summit - ICS/OT Threat Landscape
The Industrial Control Systems (ICS) / Operational Technology (OT) threat landscape is escalating, moving beyond traditional IT concerns to impacting cyber-physical systems. This talk dissects the div...
www.slideshare.net
August 12, 2025 at 7:26 PM
ICYMI 🎩
Here are my slides from last week at Black Hat covering the ICS/OT Threat Landscape.
Thanks to my @mandiant.com & GTIG colleagues for helping with the data in this presentation. Thanks @emmamstewart.bsky.social @blackhatevents.bsky.social for the invite.
www.slideshare.net/slideshow/bl...
Here are my slides from last week at Black Hat covering the ICS/OT Threat Landscape.
Thanks to my @mandiant.com & GTIG colleagues for helping with the data in this presentation. Thanks @emmamstewart.bsky.social @blackhatevents.bsky.social for the invite.
www.slideshare.net/slideshow/bl...
Tinman needs a little oil this morning
a woman in a blue dress is standing next to a man in a metal armor and a scarecrow .
ALT: a woman in a blue dress is standing next to a man in a metal armor and a scarecrow .
media.tenor.com
August 11, 2025 at 2:26 PM
Tinman needs a little oil this morning
Back in The Sip. The de-raisining process has begun. (I'm not used to the 7% humidity in Las Vegas).
It was so great to see so many of my friends at BlackHat and DEF CON and barcon and lobbycon. I missed seeing many of you, but you were still on my mind.
It was so great to see so many of my friends at BlackHat and DEF CON and barcon and lobbycon. I missed seeing many of you, but you were still on my mind.
August 11, 2025 at 12:45 AM
Back in The Sip. The de-raisining process has begun. (I'm not used to the 7% humidity in Las Vegas).
It was so great to see so many of my friends at BlackHat and DEF CON and barcon and lobbycon. I missed seeing many of you, but you were still on my mind.
It was so great to see so many of my friends at BlackHat and DEF CON and barcon and lobbycon. I missed seeing many of you, but you were still on my mind.
Mamas don't let your babies grow up to be hackers #hackerkaraoke #DEFCON 🎙️🎶
@defcon.bsky.social
youtu.be/D0u6Z1EsbHE?...
@defcon.bsky.social
youtu.be/D0u6Z1EsbHE?...
Mammas Don't Let Your Babies Grow Up to Be Hackers
YouTube video by Chris Sistrunk
youtu.be
August 10, 2025 at 4:47 PM
Mamas don't let your babies grow up to be hackers #hackerkaraoke #DEFCON 🎙️🎶
@defcon.bsky.social
youtu.be/D0u6Z1EsbHE?...
@defcon.bsky.social
youtu.be/D0u6Z1EsbHE?...
It is wonderful to meet @adamshostack.bsky.social and @fsmontenegro.bsky.social. I'm not sure why it took so long for us to connect but #DEFCON hallwaycon remedied that.
August 10, 2025 at 5:56 AM
It is wonderful to meet @adamshostack.bsky.social and @fsmontenegro.bsky.social. I'm not sure why it took so long for us to connect but #DEFCON hallwaycon remedied that.