Uploaded August 2025 | Updated September 2026, 2 weeks ago
For those who don't have time to watch a three minute video... Green. The answer is green. π
That might sound wild, but yes... all spaces in our new building in Las Vegas have upper intermediate temp release bulbs in the sprinklers. And I've found this to be the case in MANY commercial structures in this city. While it's unlikely that any building could ever reach a temperature of 200Β°F (the release temp of these green bulbs) it is NOT inconceivable that -- were the A/C system to fail during the height of summer -- a building here *might* actually exceed 155Β°F (the release temp of conventional red bulbs) especially up at the ceiling level.
I predict that we are going to see more and more of these sorts of installation choices in cities like Las Vegas, Phoenix, and other areas subject to extreme heat as climate change continues to wreak havoc on our weather patterns. Do your best to stay cool and safe, wherever you live. Hopefully we won't ever wind up seeing sprinkler systems dump water in our homes and offices when they're not actually on fire... fingers crossed!
- -- ----- ----------
Sign up for give-away drawings here...
deviating.net/contests/give-aways
I'm on the Fediverse. That's a great place to find me...
https://defcon.social/@deviantollam
I'm also on Instagram. I mostly use it for liking my friends' photos...
instagram.com/deviantollam
Bluesky has picked up a lot of momentum, and I'm over there, too...
https://bsky.app/profile/deviantollam.bsky.social
I'm also on Discord, but mostly only because my daughter uses it...
discord.com/users/deviantollam
I post dumb questions to Reddit and sometimes answer folks' questions there, too...
reddit.com/u/deviantollam
This is my GitHub. I post my design files there...
github.com/deviantollam
I don't use Twitter anymore and neither should you...
twitter.com/deviantollam
This is my personal web site. Most things i create wind up online...
deviating.net
This is my company. We're good at stuff...
enterthecore.net
This is where I train. Come and learn badass skills...
redteamalliance.com
- -- ----- ----------
For those who don't have time to watch a three minute video... Green. The answer is green. π
That might sound wild, but yes... all spaces in our new building in Las Vegas have upper intermediate temp release bulbs in the sprinklers. And I've found this to be the case in MANY commercial structures in this city. While it's unlikely that any building could ever reach a temperature of 200Β°F (the release temp of these green bulbs) it is NOT inconceivable that -- were the A/C system to fail during the height of summer -- a building here *might* actually exceed 155Β°F (the release temp of conventional red bulbs) especially up at the ceiling level.
I predict that we are going to see more and more of these sorts of installation choices in cities like Las Vegas, Phoenix, and other areas subject to extreme heat as climate change continues to wreak havoc on our weather patterns. Do your best to stay cool and safe, wherever you live. Hopefully we won't ever wind up seeing sprinkler systems dump water in our homes and offices when they're not actually on fire... fingers crossed!
- -- ----- ----------
Sign up for give-away drawings here...
deviating.net/contests/give-aways
I'm on the Fediverse. That's a great place to find me...
https://defcon.social/@deviantollam
I'm also on Instagram. I mostly use it for liking my friends' photos...
instagram.com/deviantollam
Bluesky has picked up a lot of momentum, and I'm over there, too...
https://bsky.app/profile/deviantollam.bsky.social
I'm also on Discord, but mostly only because my daughter uses it...
discord.com/users/deviantollam
I post dumb questions to Reddit and sometimes answer folks' questions there, too...
reddit.com/u/deviantollam
This is my GitHub. I post my design files there...
github.com/deviantollam
I don't use Twitter anymore and neither should you...
twitter.com/deviantollam
This is my personal web site. Most things i create wind up online...
deviating.net
This is my company. We're good at stuff...
enterthecore.net
This is where I train. Come and learn badass skills...
redteamalliance.com
- -- ----- ----------



![Magic MIFARE in a Ring (and How To Enable Magic Wake-Up on a Gen4 Credential)
[= Gen4 cheat sheet =]
turn Magic Wakeup on...
hf mf gdmsetcfg -d 7AFF00000000000000005A5A00000008
turn Magic Wakeup off...
hf mf gdmsetcfg -d 850000000000000000005A5A00000008
-
GDM stands for ζ»ε¨η GΗnDΓ²ng MΗ, literally translated as rolling code...
https://translate.google.com/?sl=auto&tl=en&text=%E6%BB%9A%E5%8A%A8%E7%A0%81&op=translate
Proxmark documentation about Magic Credentials on the RRG repo...
https://github.com/RfidResearchGroup/proxmark3/blob/master/doc/magic_cards_notes.md#mifare-classic-uscuid
https://github.com/RfidResearchGroup/proxmark3/blob/master/doc/magic_cards_notes.md#uscuid-configuration-guide
Kitsunes notes about Gen4 Magic Credential configuration...
https://gist.github.com/kitsunehunter/7c53cc8bec43644f439d41e6d0588290
This is the specific ring featured in this video...
https://www.amazon.com/dp/B0B3CYCF6H (not a sponsored or affiliate link)
Im told that the Amazon link above is sold out, but viewer sfjuocekr found the same ring on AliExpress...
https://nl.aliexpress.com/item/1005006837055398.html (not a sponsored or affiliate link)
This is the longer talk about Implantable RFID that I recently gave at BSidesRDU...
https://youtu.be/3EFKJ9KaWGY
-
Sign up for give-away drawings here...
https://deviating.net/contests/give-aways/
Im on the Fediverse. Thats a great place to find me...
https://defcon.social/@deviantollam
Im also on Instagram. I mostly use it for liking my friends photos...
https://instagram.com/deviantollam
Bluesky is a newer community, and Im over there, too...
https://bsky.app/profile/deviantollam.bsky.social
Im also on Discord, but mostly only because my daughter uses it, lol...
https://discord.com/users/deviantollam
I post dumb questions to Reddit and sometimes answer folks questions there, too...
https://www.reddit.com/u/deviantollam
This is my GitHub. I post my design files there...
https://github.com/deviantollam
I still have my Twitter account. I dont use it anymore and neither should you...
https://twitter.com/deviantollam
This is my personal web site. Most things i create wind up online...
https://deviating.net
This is my company. Were good at stuff...
https://enterthecore.net
This is where I train. Come and learn badass skills...
https://redteamalliance.com
- Magic MIFARE in a Ring (and How To Enable Magic Wake-Up on a Gen4 Credential)](https://i.ytimg.com/vi/lOHqsBjsE3U/mqdefault.jpg)






