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Sijisu

@sijisu.eu.bsky.social

computers are an insecure mess Computer Science student mff.cuni.cz, CTFs with wrecktheline.com & czechcyberteam.github.io

72 Followers  |  210 Following  |  11 Posts  |  Joined: 26.11.2023  |  1.8619

Latest posts by sijisu.eu on Bluesky

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NSO Group must pay more than $167 million in damages to WhatsApp for spyware campaign | TechCrunch The five-year legal battle between the Meta-owned company and the most notorious spyware maker in the world ends with a huge win for WhatsApp.

BREAKING: Spyware maker NSO Group must pay $167 million to WhatsApp for a hacking campaign in 2019 that targeted more than 1,400 chat app users.

This is a huge win for WhatsApp. NSO says it will consider appealing.

techcrunch.com/2025/05/06/n...

06.05.2025 21:21 — 👍 45    🔁 33    💬 1    📌 2
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The Real Lesson of SignalGate A surveillance arms race has poked a gaping hole in national security.

"Were any of the Houthi Signal group members compromised at the time they discussed the Yemen attack plans? Frankly, it would be shocking if they were not."

My latest in @foreignaffairs.com on "The Real Lessons of SignalGate"

www.foreignaffairs.com/united-state...

24.04.2025 11:52 — 👍 215    🔁 90    💬 4    📌 13

Really nice :)

20.04.2025 17:54 — 👍 1    🔁 0    💬 0    📌 0

Hot take: Skoro měsíc úplně vevnitř veřejné správy v tom mám docela jasno.

Veřejná správu nepotřebuje další rady, jak to dělat líp, ale potřebuje lidi vevnitř, kteří to líp odmakají.

12.04.2025 15:31 — 👍 47    🔁 7    💬 6    📌 3
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EU issues US-bound staff with burner phones over spying fears European Commission officials heading to IMF and World Bank spring meetings advised to travel with basic devices

https://www.ft.com/content/20d0678a-41b2-468d-ac10-14ce1eae357b

14.04.2025 12:39 — 👍 3    🔁 15    💬 3    📌 0

Congrats!

14.04.2025 15:26 — 👍 1    🔁 0    💬 0    📌 0
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Tracing the thoughts of a large language model Anthropic's latest interpretability research: a new microscope to understand Claude's internal mechanisms

www.anthropic.com/news/tracing...

01.04.2025 20:17 — 👍 1    🔁 0    💬 0    📌 0
Screenshot showing an ASCII-art banner in the TempleOS text editor. The banner consists of the TempleOS logo with the text "Holy M0le" and a small Mole Antonelliana aside.

Screenshot showing an ASCII-art banner in the TempleOS text editor. The banner consists of the TempleOS logo with the text "Holy M0le" and a small Mole Antonelliana aside.

I wrote a TempleOS pwn challenge for m0leCon CTF Finals 2025, which took place last week. Pretty fun, players really seemed to like it. Source and writeup here: github.com/mebeim/ctf-c.... Also shout out to Phillipp Mao from 0rganizers for his own writeup: philippmao.github.io/writeups/hol...

24.03.2025 21:47 — 👍 2    🔁 1    💬 0    📌 0
Is the cure to male loneliness starting a group text to bomb the Houtis?

Is the cure to male loneliness starting a group text to bomb the Houtis?

24.03.2025 20:02 — 👍 655    🔁 104    💬 2    📌 4
Hours you work

carstein.github.io/short/2025/0...

22.03.2025 09:48 — 👍 1    🔁 0    💬 0    📌 0
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Exciting news! Zed now has native Git support starting from v0.177. Designed for speed, Git-native functionality, and a keyboard-first workflow.

12.03.2025 17:56 — 👍 215    🔁 40    💬 11    📌 9
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Memory Safety Is this memory safety here in the room with us? Halvar Flake / Thomas Dullien DistrictCon 0 2025

I gave a day 1 closing keynote at DistrictCon yesterday. Surprisingly, it was a security talk about memory safety.

Slides are here:
docs.google.com/presentation...

22.02.2025 11:40 — 👍 121    🔁 30    💬 6    📌 9
Algorithms are breaking how we think
YouTube video by Technology Connections Algorithms are breaking how we think

Surely this new video won't make me seem like a crank.
www.youtube.com/watch?v=QEJp...

22.02.2025 17:05 — 👍 8162    🔁 2025    💬 718    📌 493
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(AP) — Elon Musk’s cost-cutting team is eliminating jobs at the vehicle safety agency that oversees Tesla and has launched investigations into deadly crashes involving his company’s cars.

#OligarchEra 🇺🇸
apnews.com/article/musk...

22.02.2025 19:10 — 👍 6195    🔁 2311    💬 245    📌 235

The people who think they are good at everything because they are good at coding are also bad at coding.

04.02.2025 19:34 — 👍 5677    🔁 1257    💬 72    📌 73
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Deepseek-R1...

1) Is very impressive
2) The 32B version runs very well locally on a 4090
3) Will put a lot of pressure on the big US labs to open-source
4) Will be used in a lot of abuse/spam
5) Has some interesting holes in its knowledge:

25.01.2025 22:35 — 👍 149    🔁 32    💬 7    📌 4
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This is a great post on bug bounty reddit!

OP reported an IDOR, gets paid $2,000, and then realizes it never was IDOR. It's just a cached response...

24.01.2025 14:14 — 👍 50    🔁 5    💬 3    📌 0
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Cloudflare Issue Can Leak Chat App Users' Broad Location A security researcher made a tool that let them quickly check which of Cloudflare's data centers had cached an image, which allowed them to figure out what city a Discord, Signal, or Twitter/X user mi...

A bug in Cloudflare (and just the nature of how CDNs work) let an attacker learn the broad location of Discord, Signal, Twitter users by just sending them an image, according to a security researcher. It works because check which data center cached the image www.404media.co/cloudflare-i...

21.01.2025 14:40 — 👍 2429    🔁 656    💬 98    📌 37
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Many YouTube videos lately are clickbait and stretch out a Wikipedia page into 30 minutes. Many videos are just questions with simple answers.

So I built tldw.tube: put in the URL and save your time!

(No hate on Veritasium, it just happened to work well for the screenshot)

11.01.2025 05:24 — 👍 60    🔁 18    💬 9    📌 1
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My new C programming book is slowly taking shape. If you want to learn along, let's start with the basics of control flow:

godbolt.org/z/3GerY3zEc

1/5

08.01.2025 19:55 — 👍 70    🔁 18    💬 8    📌 1

That's a good one

01.01.2025 12:13 — 👍 1    🔁 0    💬 0    📌 0

Is there a xkcd relevant to this post?

31.12.2024 05:30 — 👍 3    🔁 0    💬 2    📌 0
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Fearsome File Formats Presented at 38C3 in Hamburg on the 28th December 2024. With so many open-source parsers being tested and fuzzed, and widely available specs, what c…

I presented about file formats at #38C3.
Thanks for the feedback everyone!
speakerdeck.com/ange/fearsom...

28.12.2024 17:19 — 👍 26    🔁 5    💬 1    📌 1

Yeah, that seems wrong indeed.

29.12.2024 10:06 — 👍 0    🔁 0    💬 0    📌 0

This is the correct answer.

23.12.2024 23:19 — 👍 1    🔁 0    💬 0    📌 0

You are welcome :)

06.12.2024 10:42 — 👍 2    🔁 0    💬 0    📌 0
Modern solutions against cross-site attacks Modern solutions against cross-site attacks

Modern solutions against cross-site attacks (frederikbraun.de/modern-solut...): An article about cross-site leak attacks and browser-based defenses. You will also learn why web security best practices is always opt-in and finally how YOU can get increased security controls.

27.11.2024 07:50 — 👍 34    🔁 19    💬 0    📌 1

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