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Stef

@stefvandop.nl

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: https://orangecon.nl/

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26.06.2023
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Latest posts by Stef @stefvandop.nl

‘Hey bro did you get hacked’ to one of the largest companies in the world, i think you saw this reply coming :)

03.03.2026 20:52 👍 1 🔁 0 💬 0 📌 0

Thanks for moments of laughing murderbot :)

23.02.2026 21:19 👍 0 🔁 0 💬 1 📌 0

3 more years to go and if he dies we get a worse VP.. aaah

30.12.2025 20:15 👍 0 🔁 0 💬 0 📌 0

thanks to AI you can now become the malignant illusion spinning demiurge whom Descartes had to axiomatically banish in order to make Rationality possible

26.12.2025 20:56 👍 1718 🔁 349 💬 13 📌 4

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.

15.11.2025 18:37 👍 31 🔁 1 💬 4 📌 0

I do find this very tricky to balance with ‘i also don’t want to tell them only stuff they already know’ personally

10.11.2025 20:32 👍 0 🔁 0 💬 0 📌 0

Thx. I can use some good news atm :)

01.11.2025 20:56 👍 0 🔁 0 💬 0 📌 0
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31.10.2025 20:06 👍 1 🔁 0 💬 0 📌 0

Yabra is populair

26.10.2025 23:09 👍 0 🔁 0 💬 0 📌 0
Preview
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 …

www.theguardian.com/technology/2...

Well ehm, yes.

26.10.2025 23:05 👍 1 🔁 0 💬 0 📌 0
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Hmmz.

I guess it makes sense but bit annoying..

24.10.2025 19:05 👍 1 🔁 0 💬 0 📌 0

Ik vind wel wat iets over je hoodie comment als nerd :)

12.10.2025 22:14 👍 1 🔁 0 💬 0 📌 0

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.

12.10.2025 18:48 👍 868 🔁 154 💬 32 📌 4

Who is she?

12.10.2025 19:01 👍 1 🔁 0 💬 0 📌 0

Can i hack your phone? No.

Can i do that with 1/10/100 million budget, yes.

05.10.2025 21:02 👍 0 🔁 0 💬 0 📌 0

By now storing your bitcoin on kraken is more secure than your home setups ;)

05.10.2025 21:00 👍 0 🔁 0 💬 1 📌 0

😂

24.09.2025 21:55 👍 0 🔁 0 💬 0 📌 0
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03.09.2025 22:49 👍 5 🔁 0 💬 0 📌 0

They can watch me put in my yubikey all they want.

22.08.2025 23:51 👍 13 🔁 0 💬 0 📌 0

Any paper i can look at?

21.08.2025 22:22 👍 1 🔁 0 💬 1 📌 0
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12.06.2025 22:36 👍 314 🔁 120 💬 4 📌 3
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Time to spend 2 weeks not focussing on how all our security is broken 🫶

02.07.2025 00:48 👍 3 🔁 0 💬 0 📌 0

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.

27.06.2025 18:51 👍 2115 🔁 774 💬 39 📌 18
Building OrangeCon: Stef van Dop on Creating a Cybersecurity Community
Building OrangeCon: Stef van Dop on Creating a Cybersecurity Community YouTube video by Dr Josh Stroschein - The Cyber Yeti

www.youtube.com/watch?v=r4fL...

28.06.2025 19:44 👍 2 🔁 0 💬 0 📌 0

No opinion except that i love those books.

27.06.2025 19:02 👍 0 🔁 0 💬 0 📌 0

@adafruit.com do you have ppl in eu who could maybe do something at hacker events?

27.06.2025 18:38 👍 1 🔁 0 💬 0 📌 0

Make a ctf challenge :)

24.06.2025 19:52 👍 1 🔁 0 💬 0 📌 0
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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.

24.06.2025 19:50 👍 65 🔁 6 💬 10 📌 1

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.

19.06.2025 18:18 👍 1364 🔁 278 💬 69 📌 28

‘You had a glass of water, how would you rate this experience?’

The future is stupid.

16.06.2025 16:57 👍 1 🔁 0 💬 0 📌 0