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Marik0

@marik0.bsky.social

Infosec and ML hackademic. Music and chess amateur.

53 Followers  |  71 Following  |  10 Posts  |  Joined: 13.12.2023  |  1.9515

Latest posts by marik0.bsky.social on Bluesky

Official Intro Theme — CTU Introduction to Security
Every year, hundreds of students start Introduction to Security — a 14-week, hands-on course where curiosity meets courage, and learning means breaking, building, and defending… Official Intro Theme — CTU Introduction to Security

Every year, thousands join our CTU Introduction to Security — where curiosity meets courage, and learning means attacking & defending.

This is our heartbeat.

🎬 Watch the premiere → www.youtube.com/watch?v=FLtX...

#CyberSecurity #Animation

30.10.2025 08:35 — 👍 3    🔁 4    💬 0    📌 0
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Our Introduction to Security #MOOC is open again — 14 weeks of real-world attacking & defending!

🌍 Open worldwide
📅 First round of applications by Aug 15
🧾 New EU-cert track for professionals

Spread the word 👇
cybersecurity.fel.cvut.cz

#cybersecurity #infosec #Training

09.07.2025 07:06 — 👍 2    🔁 2    💬 0    📌 0

Unless we're dumping on X and Musk (and we absolutely should be), the "Nazi AI" is a footnote. The headline is "LLMs are trivially manipulated by an unseen hand that can change how responses work after testing and promoting an app to prod and there's nothing you can do to mitigate this." 2/

08.07.2025 22:28 — 👍 115    🔁 26    💬 2    📌 2
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Google can now read your WhatsApp messages, here's how to stop it Google has released a feature that allows Gemini to access third-party apps, such as WhatsApp, even if you've turned off Gemini Apps Activity. Here's how to prevent that from happening.

Google continues the industry-wide trend of jamming AI down users' throats, making it difficult or impossible to opt out, and potentially endangering the privacy of communications: www.neowin.net/guides/googl...

09.07.2025 01:17 — 👍 156    🔁 75    💬 9    📌 6
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What has Stratosphere been up to? Read all about it in the latest edition of our newsletter! 🚀
www.linkedin.com/pulse/strato...

29.04.2025 08:27 — 👍 4    🔁 4    💬 0    📌 0

I'm listening to #4 now on YouTube, and it is quite enjoyable so far. Not sure about the Twitch part, though...

07.04.2025 06:06 — 👍 0    🔁 0    💬 1    📌 0

3/ Yes, John Nunn IS one of my #chess favorites, but 1001 Deadly Checkmates is excellent in every way: real, well-organized positions ranging from easy (but not absolutely basic) to skull-busting, and a scoring system for data tracking nerds like myself. All #chesspunks should work through this one!

21.03.2025 17:29 — 👍 3    🔁 1    💬 2    📌 0

I love 1001 deadly checkmates. I’m halfway through it and it is very high quality, both in selection of puzzles and the solutions provided. I also like that there is a range of difficulty that is well adjusted.

21.03.2025 20:18 — 👍 1    🔁 0    💬 0    📌 0
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AlquistCoder Team Competes in Amazon Nova AI Challenge | Artificial Intelligence Center | CTU Prague CTU is taking on nine top universities in Amazon’s latest global AI race, building a system that generates secure, attack-resistant code.

Happy to announce the participation of our @stratosphereips.bsky.social in the Amazon Safe LLM competition! One of the 10 groups participating.

www.aic.fel.cvut.cz/news/alquist...

17.03.2025 12:48 — 👍 4    🔁 3    💬 0    📌 0
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OpenAI calls DeepSeek 'state-controlled,' calls for bans on 'PRC-produced' models | TechCrunch In a proposal, OpenAI describes DeepSeek as 'state-controlled,' and recommends banning models from it and other PRC-affiliated operations.

My contempt for anyone involved with this drivel knows few limits. Conflating issues and fear mongering because a Chinese company dared to publish an actual open model:

techcrunch.com/2025/03/13/o...

And trying to talk about copyright after training in Libgen.

Hypocrisy, lies, grifting :-(

14.03.2025 08:00 — 👍 80    🔁 17    💬 5    📌 0

Congrats Martijn!

03.03.2025 12:11 — 👍 1    🔁 0    💬 0    📌 0
Prague International Chess Festival logo

Prague International Chess Festival logo

The Prague International Chess Festival started - featuring the recent Tata Steel winner R Praggnanandhaa, Vincent Keymer, Wei Yi, David Navara, Anish Giri and Ediz Gürel among others. Watch all the games in our broadcast until 7 March!

https://lichess.org/broadcast/-/wqRZKUbS

26.02.2025 14:27 — 👍 12    🔁 1    💬 0    📌 0
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I looked at the relative number of mistakes in GM games depending on the move number and the current evaluation of the position. If you want to read more, here is the post: chessenginelab.substack.com/p/grandmaste... #chess

22.02.2025 16:28 — 👍 1    🔁 1    💬 0    📌 0
Visualization Training  (1000-1500) - Pawn Endings
YouTube video by Han Schut Visualization Training (1000-1500) - Pawn Endings

New video: Visualization Training based on Step 3 Thinking Ahead.
Seventeen puzzles on Pawn Endings (key squares and rook pawn).
Practice your visualization and sharpen your pawn-ending skills.
youtu.be/4wvY8hx6ncA

21.02.2025 12:32 — 👍 8    🔁 3    💬 0    📌 0

Check out the basic lessons, too; they are very well organized. Beating your friends is a worthy cause 😀

18.02.2025 07:40 — 👍 0    🔁 0    💬 0    📌 0

@lichess.org is entirely free. No need to beg anyone :)

17.02.2025 15:01 — 👍 2    🔁 0    💬 1    📌 0
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🇮🇳🎁😃 Praggnanandhaa R: "I should probably buy something for Arjun."

📷 Jurriaan Hoefsmit / @tatasteelchess

03.02.2025 08:35 — 👍 2    🔁 1    💬 0    📌 0

“But I didn’t think the copyright infringement engine would infringe my copyright infringement engine”

29.01.2025 06:20 — 👍 238    🔁 46    💬 7    📌 1

Hi!!!

24.01.2025 07:08 — 👍 1    🔁 0    💬 0    📌 0

EZ #chess
Chessguessr #946 1/5

🟩🟩🟩🟩🟩

chessguessr.com

22.01.2025 12:06 — 👍 0    🔁 0    💬 0    📌 0

Chessguessr #945 3/5

Wrong first move 🙃

🟦⬜⬜⬜⬜
🟩🟩🟩🟩⬜
🟩🟩🟩🟩🟩

chessguessr.com

21.01.2025 10:13 — 👍 1    🔁 0    💬 0    📌 0

Chessguessr #944 2/5

🟩🟩🟩🟩⬜
🟩🟩🟩🟩🟩

chessguessr.com

20.01.2025 09:59 — 👍 1    🔁 0    💬 1    📌 0
Why Bother? What Running Taught Me About Improving at Chess (and Life) - Next Level Chess By GM Noël Studer Why bother learning a new skill, especially when you are super busy? You might be surprised with the benefits, though.

As I am a recreational runner my self, I totally agree with GM Studer #chesspunks

17.01.2025 13:06 — 👍 1    🔁 1    💬 0    📌 0

At some point, you have to realize that the more you talk about someone, the more importance you give them. I wish we had a week of silence not to hear about Musk, Trump, x, or Meta. 🙃

17.01.2025 11:03 — 👍 4    🔁 1    💬 0    📌 0
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Zachraňte Gambit - šachovou a kulturní kavárnu Café Gambit je neobvyklým místem pro celou Prahu. Nejen proto, že jeho duchem a klíčovou myšlenkou je královská hra – šachy – ale také, nebo možná především – že se zde neustále vytváří a rozšiřuje ko...

Gambit is a #chess cafe in Prague. They are accepting donations to keep the place running. donio.cz/pribeh/23833...

06.01.2025 09:05 — 👍 2    🔁 0    💬 0    📌 0
Ivanchuk with his head on the table after a loss at the world blitz championship

Ivanchuk with his head on the table after a loss at the world blitz championship

Vasyl Ivanchuk after his Round 11 loss to Daniel Naroditsky. No one feels it more than he does, even in blitz, even after all these years.

📷: Lennart Ootes

31.12.2024 03:38 — 👍 51    🔁 10    💬 2    📌 4
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#38c3 #c3stoc #stickers

31.12.2024 13:55 — 👍 9    🔁 1    💬 1    📌 0
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Not a phone in site, just people in awe of the tallest chess player in the world

29.12.2024 06:42 — 👍 5    🔁 1    💬 2    📌 0
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ChessDojo Training Program The ChessDojo Training Program offers structured training plans for all levels 0-2500, along with an active and supportive community

Peeking in from self-exile to share: the Chess Dojo is offering a free month to try out the training program and community! Use the code NY25 when you sign up. chessdojo.club || Note: you will need to enter payment info and remember to cancel || #chess #chesspunks @chessdojo.bsky.social

28.12.2024 18:22 — 👍 3    🔁 1    💬 1    📌 0
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If you are tired of the jeansgate drama, you can have a look at my podcast episode with @kamrynheidi.bsky.social

She is a role model for adult improvers. Thank you for coming and sharing your chess tips, Kamyrn! #chesspunks #chess

Video below.

28.12.2024 10:07 — 👍 25    🔁 5    💬 4    📌 0

@marik0 is following 20 prominent accounts