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Stef

@stefvandop.nl
462 followers 885 following 475 posts

KPN redteam, member of a hackerspace in amsterdam, bla bla. He/him. I believe that climate change is real and that vaccines are good. Mostly here for infosec stuff. Check us out for next year: orangecon.nl

PostsRepliesMedia
Reposted by Stef
Tweakers @tweakers.net · 20/05/2026
Een beetje hackersconferentie heeft een hippe badge die meer computer dan identificatiemiddel is. Cybersecuritybijeenkomst OrangeCon wil ook een mini-pc als badge aan bezoekers geven, maar dan wel eentje waarmee je ook na afloop iets kunt. Daarom krijgen bezoekers van de con een… #Tweakers
tweakers.net
.Geek - Badge van OrangeCon is ook na conferentie nog praktisch voor smarthomegebruik
Een beetje hackersconferentie heeft een hippe badge die meer computer dan identificatiemiddel is. Cybersecuritybijeenkomst OrangeCon wil ook een mini-pc als badge aan bezoekers geven, maar dan wel eentje waarmee je ook na afloop iets kunt. Daarom krijgen bezoekers van de con een ESP32-module die ze later als smarthomecontroller kunnen gebruiken.
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Stef @stefvandop.nl · 03/03/2026
‘Hey bro did you get hacked’ to one of the largest companies in the world, i think you saw this reply coming :)
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Stef @stefvandop.nl · 23/02/2026
Thanks for moments of laughing murderbot :)
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Stef @stefvandop.nl · 30/12/2025
3 more years to go and if he dies we get a worse VP.. aaah
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Reposted by Stef
Patrick "Inverted Vibe Curve" Blanchfield @patblanchfield.bsky.social · 26/12/2025
thanks to AI you can now become the malignant illusion spinning demiurge whom Descartes had to axiomatically banish in order to make Rationality possible
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Reposted by Stef
SwiftOnSecurity @swiftonsecurity.com · 15/11/2025
Look I don't know fuck all about it compared to you, but people who think ethernet is just a wire that sends the ones and zeros from Chrome over. Buddy... I got some news for you.
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Stef @stefvandop.nl · 10/11/2025
I do find this very tricky to balance with ‘i also don’t want to tell them only stuff they already know’ personally
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Stef @stefvandop.nl · 01/11/2025
Thx. I can use some good news atm :)
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Stef @stefvandop.nl · 31/10/2025
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Stef @stefvandop.nl · 26/10/2025
Yabra is populair
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Stef @stefvandop.nl · 26/10/2025
www.theguardian.com/technology/2... Well ehm, yes.
theguardian.com
Could the internet go offline? Inside the fragile system holding the modern world together
Behind every meme and message is creaking, decades-old infrastructure. Internet experts can think of scenarios that could bring it all crashing down …
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Stef @stefvandop.nl · 24/10/2025
Hmmz. I guess it makes sense but bit annoying..
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Stef @stefvandop.nl · 12/10/2025
Ik vind wel wat iets over je hoodie comment als nerd :)
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Reposted by Stef
Dolf Jansen @dolfjansen.bsky.social · 12/10/2025
Voor alle agressieve schuimbekkende mentaal uitgedaagden die vandaag door 020 marcheerden met foute vlaggen, hitlergroeten bedreigingen en scheldpartijen: jullie zíjn Nederland niet en zullen het nooit worden ook. Jullie zijn schandvlekken met een hoodie.
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Stef @stefvandop.nl · 12/10/2025
Who is she?
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Stef @stefvandop.nl · 05/10/2025
Can i hack your phone? No. Can i do that with 1/10/100 million budget, yes.
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Stef @stefvandop.nl · 05/10/2025
By now storing your bitcoin on kraken is more secure than your home setups ;)
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Stef @stefvandop.nl · 24/09/2025
😂
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Stef @stefvandop.nl · 03/09/2025
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Stef @stefvandop.nl · 23/08/2025
They can watch me put in my yubikey all they want.
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Stef @stefvandop.nl · 21/08/2025
Any paper i can look at?
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Reposted by Stef
Wilco Veldhorst @wilcoveldhorst.bsky.social · 12/06/2025
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Stef @stefvandop.nl · 02/07/2025
Time to spend 2 weeks not focussing on how all our security is broken 🫶
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Reposted by Stef
evacide @evacide.bsky.social · 27/06/2025
Website/device age verification is a privacy and security nightmare and everyone who tells you that this is a solved problem is lying to you.
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Stef @stefvandop.nl · 28/06/2025
www.youtube.com/watch?v=r4fL...
youtube.com
Building OrangeCon: Stef van Dop on Creating a Cybersecurity Community
YouTube video by Dr Josh Stroschein - The Cyber Yeti
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Stef @stefvandop.nl · 27/06/2025
No opinion except that i love those books.
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Stef @stefvandop.nl · 27/06/2025
@adafruit.com do you have ppl in eu who could maybe do something at hacker events?
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Stef @stefvandop.nl · 24/06/2025
Make a ctf challenge :)
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Reposted by Stef
Kirsten Verdel @locuta.bsky.social · 24/06/2025
Ok, de regel is: zij eten vanavond en kletsen gezellig. Morgen doen ze inhoud. Dus ik heb morgen weer een dagoverzicht voor jullie (met een aantal bizarre zaken die in NL nu niet in het nieuws zijn merk ik), maar vanavond mogen we memen.
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Reposted by Stef
David Ho @davidho.bsky.social · 19/06/2025
Look people, no matter how much we destroy the Earth by polluting it with CO₂, microplastics, PFAS, etc. everywhere, and even if AMOC shuts down and both the Greenland and Antarctic ice sheets melt, the Earth will still be infinitely more habitable than Mars. Mars is a shithole and we're not going.
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Stef @stefvandop.nl · 16/06/2025
‘You had a glass of water, how would you rate this experience?’ The future is stupid.
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Stef @stefvandop.nl · 14/06/2025
Donated a bit again, they do such lovely work, please chip in if possible - www.frankyandcoen.nl/doneer-nu
frankyandcoen.nl
Doneer Nu | Franky And Coen Into The Breach
Onze acties kunnen we doen dankzij u! Uw donaties zijn geweldig welkom | Hulp Voor Oekraïne.
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Stef @stefvandop.nl · 09/06/2025
There is an important vote about ocean protection this month, its huge for our planet, has it even been in the news?
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Stef @stefvandop.nl · 06/06/2025
www.theguardian.com/politics/202...
theguardian.com
Russia is at war with Britain and US is no longer a reliable ally, UK adviser says
Government defence expert Fiona Hill warns UK to respond to threats by becoming more cohesive and resilient
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Reposted by Stef
Iain Thomson @iainthomson.bsky.social · 04/06/2025
Always good to talk to Mikko, he's always interesting but this career change was a surprise. That said, with Russia on the border it's a perfectly understandable move. "I do believe anti-drone technology maybe has more importance, and more meaning to it, right now with the war raging on."
theregister.com
Mikko Hyppönen pivots from infosec to drones inspired by war
Interview: Why? There's a war in Europe, Finland has a belligerent neighbor, and cyber is a settled field
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Stef @stefvandop.nl · 03/06/2025
There wont be a super advanced AI that suddenly hacks ‘all the computers’ ever. Unpopular opinion?
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Reposted by Stef
Encephalophatass (Any pronouns) @encephalophatass.bsky.social · 03/04/2025
It’s always “We launched these tardigrades into space!” “We froze them to absolute zero!” “We threw them into an erupting volcano!” Never “We took these tardigrades on a holiday. They’re getting tiny massages and sipping little umbrella drinks on the beach.”
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Stef @stefvandop.nl · 31/05/2025
NL could easily commit to producing 10k drones per months to help Ukraine. I'm annoyed to see that there is no sense of urgency.
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Stef @stefvandop.nl · 30/05/2025
Lemme check some wikipedia to find out why your mind is like that! 👊
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Stef @stefvandop.nl · 21/05/2025
If you are dutch or living here. You should check out events like @why2025vip.bsky.social or @why2025.bsky.social.
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Reposted by Stef
Pop Tartarus @jack-a-dandy.bsky.social · 20/05/2025
We can get paid for it instead of it just being stolen?
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Stef @stefvandop.nl · 20/05/2025
Ah in that sense, agree!
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Stef @stefvandop.nl · 20/05/2025
In what way? I dont really know what "work we as men undervalue" means here, like working in healthcare is not a manly job or?
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Reposted by Stef
Theo Hakkert @theohakkert.bsky.social · 16/05/2025
Dit klopt.
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Reposted by Stef
OrangeCon @orangecon.nl · 14/03/2025
Check out this video from our trainer Roman Stuehler! Want to learn more? Sign up for his training at #OrangeCon, 3-4 September in Amsterdam! orangecon.nl/trainings/ha...
orangecon.nl
OrangeCon - Hardware Hacking
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Reposted by Stef
OrangeCon @orangecon.nl · 05/05/2025
Practical Linux Attack Paths and DFIR by Leszek Mis A training for red, blue, and SecOps teams. Explore the latest Linux attack paths and hiding techniques, discover new methods to strengthen your detection and countless other skills. Details & Registration at orangecon.nl/trainings/li...
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Reposted by Stef
OrangeCon @orangecon.nl · 12/05/2025
Want to learn reverse engineering with Ghidra? Join our affordable yet high-quality training where you'll analyze ARM binaries from real IoT devices. No prior experience is needed, you’ll gain a strong foundation in reverse engineering. Details & Registration: orangecon.nl/trainings/re...
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Reposted by Stef
OrangeCon @orangecon.nl · 16/05/2025
OrangeCon is open for CFP! Working on something exciting in cybersecurity? Submit your talk and maybe you’ll be part of the 2025 lineup: pretalx.com/orangecon-20...
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Stef @stefvandop.nl · 14/05/2025
Most ppl who work for large companies are already totally used to mfa for their outlook though :)
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Stef @stefvandop.nl · 14/05/2025
It does work super smooth as a replacement for google otp mfa
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