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Łukasz

@lukasz.bsky.social
788 followers 960 following 223 posts

Breaking bad UTF-8 implementations since 1991. I secure cybers and run trails. If I’m posting, I’m hopefully not on a trail. Views own. He/him

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Reposted by Łukasz
derek guy @dieworkwear.bsky.social · 02/09/2024
I'm trying to be more diligent about crossposting for people who have been kind enough to follow me here. Yesterday, some people on Twitter asked me to explain the difference between a four-in-hand and Windsor knot, and why one would be considered "better." So here's a thread. 🧵 (1/19)
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Runa Sandvik @runasand.bsky.social · 23/01/2026
I started Granitt in 2022 to help journalists and other groups of at-risk people continue to do their work safely and securely. Please get in touch if you’re looking for an assessment, policy and process development, training, or presentation. techcrunch.com/2022/07/15/g...
techcrunch.com
Runa Sandvik's new startup Granitt secures at-risk people from hackers and nation states | TechCrunch
The Norwegian hacker talks about her new venture aimed at protecting journalists and critics from powerful adversaries.
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Jay Hulme @jayhulmepoet.bsky.social · 23/12/2025
Was at a Christmas party with a load of clergy last night and as some people were leaving they found a person collapsed on the street outside so the Verger took over and called an ambulance and sent all the clergy away because "if they wake up surrounded by priests that'll just make things worse"
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Jen Gentleman @jenmsft.bsky.social · 22/12/2025
Got a great deal on some cheap ram for my computer
A bunch of tiny sheep sitting on my laptop
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derek guy @dieworkwear.bsky.social · 16/10/2025
thinking about the time a cool Instagram fashion account asked me to name my favorite products and i didn't know i was supposed to name fashion products, so i said pigeon food because i like feeding pigeons and their followers were like "why the fuck do i need pigeon food for my outfit?"
The Instagram account Saint featured me. The first slide says: "Derek Guy - Dieworkwear. Derek Guy is a menswear writer who has written for The New York Times, Esquire, and Mr. Porter. He also runs a menswear blog called Die, Workwear"One of the slides showing my favorite products. It's it's a big bag of Hagen pigeon food. The food is fortified with the vitamins and nutrients pigeons need. Instagram user writes: "Why tf do i need pigeon food for my outfit." I replied: "this is what i can afford to eat after spending all my money on clothes ::sad face::"
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Jen Gentleman @jenmsft.bsky.social · 28/08/2025
Any em dash fans here? We're currently working on a Windows-wide keyboard keyboard shortcut for em dash and em dash, to make it easier to input for those that need it 😊 blogs.windows.com/windows-insi... #WindowsInsiders
Screenshot of the linked blog, saying: We’re adding a new keyboard shortcut to make it easier for you to insert an En dash (–) or Em dash (—) while typing anywhere in Windows. Going forward, pressing WIN + Minus (-) will insert En dash, and WIN + Shift + Minus (-) will insert Em dash. Note – if you have Magnifier running, WIN + Minus (-) will still zoom out Magnifier, rather than inserting an En dash
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Łukasz @lukasz.bsky.social · 29/06/2025
Go to the mountains, finish a trail race, see some cool rocks
Rocky cliffs and a valley below. It’s a warm and sunny day, and the valley looks full of life. There are a few scattered buildings in the valley but other than those, it’s mostly forest and meadowA path in the forest, illuminated by evening light. Moderately high grass grows between the trees. The path is modern and made out of wooden planksAn abstract looking image of rock formations. The rocks are separated by crevassesA tree growing in a rock, illuminated by harsh summer sunlight. It’s surrounded by rocky walls
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Łukasz @lukasz.bsky.social · 13/05/2025
Does anyone have a good security analysis of Apple accessibility features? Are there for example security mechanisms which ensure that speech transcribed for accessibility reasons is instantly deleted or processed via a Secure Enclave?
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Ricky Mondello @rmondello.com · 09/05/2025
Pretty big news! This week, the National Cyber Security Centre of the UK announced that it will be rolling out passkeys across the UK’s digital services later this year. The organization will also be joining the FIDO Alliance to help shape the evolution of passkeys. www.ncsc.gov.uk/news/governm...
ncsc.gov.uk
UK pioneering global move away from passwords
Government to roll out passkey technology across digital services as an alternative to SMS-based verification.
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Łukasz @lukasz.bsky.social · 06/05/2025
macOS encryption question: when do you recommend that people use FileVault in addition to the standard T2 encryption? #infosec
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Łukasz @lukasz.bsky.social · 27/04/2025
Hi from Pieniny National Park! (I'm on a quest to visit all of Poland's national parks)
A sign which says "bacówka" (or shepherd's hut) in front of a green meadow, with a mountain consisting of three rocky peaks in the backgroundgreen rolling meadows and a small village in the foreground, with the high peaks of the Tatra mountains in the backgrounds. The Tatras are rocky, with some snow still on thema tree in a national park, with a white-green-white trail sign painted on it
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Łukasz @lukasz.bsky.social · 07/04/2025
Hi from the mountains, blessed (or cursed) by an April snowfall!
a building that looks a bit like a farmer’s hut but covered in or made of metal. Trees in the background. Around 30cm of snow have fallen overnight and cover both the trees and the hut’s roof
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Łukasz @lukasz.bsky.social · 04/04/2025
It’s kind of exhilarating to think of how, in two decades or so, we’ll be using words in everyday speech that haven’t been invented yet #langsky
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Łukasz @lukasz.bsky.social · 25/03/2025
The moment your train home arrives, Dvořák’s To The New World is playing on your headphones, and you see this view ❤️
Warsaw’s Palace of Culture at night, surrounded by several skyscrapers. It’s a tall building in the socialist realist style that dominates the landscape around it. It’s lit up in red and blue colours. Despite having been built by a horrible occupying power, we managed to turn the Palace of Culture into a key part of our democratic city’s skyline
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Łukasz @lukasz.bsky.social · 17/02/2025
Main conclusion after reading 4/5ths of One Hundred Years of Solitude: solitude involves much more socialising, chatting, and merriment than I previously assumed. Finally understand why people love it so much
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derek guy @dieworkwear.bsky.social · 16/02/2025
Not true. I'll give you some examples of when styles crossed over from womenswear to menswear, and how men have worn straight-up womenswear or just feminine styles in cool ways. 🧵
A screenshot from Twitter. 

The original tweet reads: "Rapper Kenderick Lamar wore size 29 women's jeans to Super Bowl LIX." The tweet garnered over a thousand replies, most negative. 

I (Derek Guy) screenshotted that tweet and wrote: "so funny to see history repeat itself. men who wear slim fit and stretch denim—both of which were once considered strictly for women—criticizing kendrick for wearing flares bc they were on the women's aisle. in ten years, you'll be in flares clutching pearls about something else"

Then another user replied to my tweet, saying: "Wearing women’s clothes has never been in style, homo."
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Lorenzo Franceschi-Bicchierai @lorenzofb.bsky.social · 08/02/2025
I’m very excited to read @rondeibert.bsky.social’s new book. Ron and his team at the Citizen Lab have revolutionized the world of cybersecurity. It’s fair to say that my career would not be the same without Citizen Lab, which I have covered for more than ten years now.
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Faine Greenwood @faineg.com · 24/01/2025
So today is @scoiattolo.mountainherder.xyz and I’s TENTH anniversary - a decade! a really weird decade! - and I guess one of us should post about it
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Ken Shirriff @righto.com · 05/01/2025
Intel's Pentium processor (1993) can compute sines, logarithms, and other special functions. To do this, it has a ROM with 304 floating-point constants. I reverse-engineered this ROM and extracted the constants. You can see pi in the ROM, binary 11.001001..., encoded in the transistor pattern. 1/n
A diagram showing how pi is encoded in the Pentium chip. The Pentium has a ROM to hold constants in the lower right. Zooming in on the ROM shows how it holds exponents in the left and the signficand in the right. Zooming in more shows the individual transistors in the ROM. Eight bits are indicated with arrows, the binary bits that start pi.
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Hannah Ritchie @hannahritchie.bsky.social · 29/11/2024
Air Quality Stripes have long-term trends of air pollution in many cities across the world. Here is London. Nice work @jimmcquaid.bsky.social & @kirstypringle.bsky.social. airqualitystripes.info/stripes/?con... h/t @edhawkins.org
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shing yin khor @shing.bsky.social · 05/12/2024
why is our dogwalker the ansel adams of dog photography
a dozen or so dogs lined up in an approximate pyramid shape on a road, which match the street angle, the background is foggy.
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Stephen Jarvis @stephenjarvis.bsky.social · 05/12/2024
@xkcd.com tackling the important energy questions we always needed answering
youtube.com
If all humans died, when would the last light go out?
YouTube video by xkcd's What If?
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Łukasz @lukasz.bsky.social · 04/12/2024
tired: thinking that the algorithms around here are against you wired: realising that maybe your post wasn't as good as you hoped it would be
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Meredith Whittaker @meredithmeredith.bsky.social · 28/11/2024
🥧💙
A photo of a pumpkin pie from above with the Signal logo drawn on it
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Łukasz @lukasz.bsky.social · 29/11/2024
Don’t forget: those who think they are too smart to be socially engineered are often particularly vulnerable as they can’t recognise their own limits
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Łukasz @lukasz.bsky.social · 28/11/2024
My social network strategy is basically: Bluesky for forever content 🦋 Signal stories for ephemeral content 🤳
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Łukasz @lukasz.bsky.social · 28/11/2024
While I have a lot of fun here, please don’t forget that everything you post here is immutable. Assume it’s public and can’t be deleted. The internet never forgets
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Łukasz @lukasz.bsky.social · 26/11/2024
TIL i need to invite more designers to my parties
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Łukasz @lukasz.bsky.social · 25/11/2024
Gave blood, got a teddy bear! (Donated it to a collection for refugee kids right after. The bear brought me joy, but will make others even happier)
A brown teddy bear in a red hoodie with the hood up. Their hoodie says "Your blood, my life" in Polish
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kate conger @kateconger.com · 23/11/2024
okay everyone act chill & normal, our crushes are starting to join bluesky. let’s not fuck this up
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Łukasz @lukasz.bsky.social · 14/11/2024
Listening to August on repeat is my own little rebellion against November’s grayness
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Łukasz @lukasz.bsky.social · 11/11/2024
Today’s trail run 😄
A mountain meadow in late autumn. The skies are blue; the leaves have fallen from some trees. You can see some huts on the meadowA portion of a mountain meadows, with some trees behind it, and lots of mountains in the background!A hiking trail that’s fully covered in shade. It’s frozen over! In the background you see a sunlit meadow, no longer icy, and blue skies
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Łukasz @lukasz.bsky.social · 05/07/2023
When Taylor says that she will turn bad boys good for the weekend, does she mean it instrumentally (they will be useful to her) or intrinsically (they will become upstanding citizens)?? I’ve been thinking about it for a year and can’t figure it out, HALP
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Łukasz @lukasz.bsky.social · 09/11/2024
new goal: follow every swiftie account that shows up in my feeds
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Łukasz @lukasz.bsky.social · 09/11/2024
New day, new train trip! Bye Prague, it’s been wonderful :)
Praha hl n station, with two ČD trains visible. It’s a somewhat sunny day!A bottle of Kofola, with train tracks in the background. It looks like this photo was taken during a train ride
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Julia Racsko @juliaro.bsky.social · 04/11/2024
This week is #btconf Berlin - are you coming? Please say hi! I printed some fresh cards. Kind of irrelevant in 2024, but it feels nice to have them.
Business cards of Julia Racsko scattered on a table
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Łukasz @lukasz.bsky.social · 03/11/2024
Warsaw sunsets are beautiful. Shame they are at 4pm nowadays 🥲
The Warsaw Palace of Culture, brightly lit by a November sunset. There are no clouds in the sky. In the foreground you can see an element of a railing and a gray wall, both of which form a staircaseThe Warsaw Palace of Culture at sunset
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Coach Gowron @coachgowron.com · 02/11/2024
It is not always darkest before the dawn, yet we often let our pessimism make it seem that way. Sometimes it is hard to see light on the horizon if you are convinced you will see nothing but doom. Do not let dark times fool you into thinking the night is endless. Dawn will come.
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Bob Lord @boblord.bsky.social · 01/11/2024
💡 Humble suggestion: When giving advice to non-security professionals, skip asking them to "consider" actions. The background knowledge needed to "consider" risks and responses takes years of understanding threats and tech failures. Make the hard call—either tell them to do it or leave it out.
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danah boyd @zephoria.bsky.social · 29/10/2024
Personal update: I'm joining Cornell as a Professor of Communication starting in Fall of 2025. ::bounce:: If you're curious about my thinking, see: www.zephoria.org/thoughts/arc...
zephoria.org
I’m joining the Cornell faculty! | danah boyd | apophenia
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Łukasz @lukasz.bsky.social · 27/10/2024
Final trail race of the year: O-See 29k in Oybin, Saxony!
A grey rock formation, with lots of trees on top it and in frontTwo giant grey-red rocks shaped like faces. There are people standing next to them, and they are dwarves by those rocks It’s a sunny day with some clouds and you can see a valley below. The photo looks like it was taken from a hill, with the valley ending and more mountains starting out in the distance
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Ben Rosen @benrosen.bsky.social · 13/05/2023
VITAMIN WATER: we’re like water, but with vitamins ME: which ones VITAMIN WATER: well sugar is a vitamin ME: no it’s not VITAMIN WATER: what about blue
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