Luke Walker @elukewalker
Husband & father first. Director, Developer Program @Yubico. Passionate about security & privacy, cloud & mobile DX, & grilling. Opinions my own. Seattle, Washington Joined April 2009-
Tweets1K
-
Followers226
-
Following1K
-
Likes803
Join the Yubico virtual hackathon on 8/5. Get a YubiKey 5.8 and build apps to make the Internet a safer place. yubico.com/dev-5-8/
Join Erik and I for our upcoming webinar: Passkeys make Advanced Protection Programs possible. Save your spot today: lnkd.in/gsBFDZRv
libfido2 1.17.0 released. CTAP 2.3 support, application-managed PUATs, restricted webauthn.dll search paths (YSA-2026-01), 64-byte hmac-secret salts with Windows Hello, and 31 new API functions. developers.yubico.com/libfido2/Relea…
YubiKit Swift SDK v1.3.0 released. New WebAuthn.Client matches W3C browser APIs with full ceremony support. Extensions: prf, largeBlob, credBlob, credProtect, thirdPartyPayment, previewSign v4. FidoUI sample module for SwiftUI FIDO ceremony components. github.com/Yubico/yubikit…
YubiKey Manager CLI 5.9.1 released. Maintenance: DLL search paths restricted (YSA-2026-01), improved device listing for keys without OTP-visible serial numbers, Windows/macOS installers updated to Python 3.14.4. github.com/Yubico/yubikey…
python-fido2 2.2.0 released. Adds previewSign extension v4 for YubiKey 5.8, PSL wildcard/exception rules for RP validation, restricted DLL search paths (YSA-2026-01). Fixes: WindowsClient hmac_secret null pointer, TPM attestation validation. github.com/Yubico/python-…
Yubico Authenticator 7.3.3 for Desktop released. Maintenance: FIDO read-only Passkeys access is now opt-in, Linux window size persistence fixed. Built with Flutter 3.41.6 and Python 3.14.4. github.com/Yubico/yubioat…
Yubico .NET SDK 1.16.1 released. Bug fixes: HID/SmartCard events downgraded from Info to Debug, high idle CPU in RDS/Terminal Server environments resolved, TLV/CBOR decoding bugs fixed via fuzz testing. github.com/Yubico/Yubico.…
Yubico .NET SDK 1.16.0 released. FIDO2 adds SCP03 and SCP11 secure channel support over USB CCID on YubiKey firmware 5.8+. New ZlibStream class. MSVC C runtime now statically linked — Visual C++ Redistributable no longer required. github.com/Yubico/Yubico.…
YubiKit Android 3.1.0 on Maven Central. New fido-android-ui: Kotlin API for WebAuthn with hardware security keys and WebView support. Desktop multi-device + NFC reader support, previewSign v4, cryptographic material zeroing across all modules. github.com/Yubico/yubikit…
YubiHSM Shell 2.7.3 YubiHSM Shell 2.7.3 released. Bug fix: incorrect capability definition when managing Public Wrap Key objects. developers.yubico.com/yubihsm-shell/…
YubiHSM SDK 2026.04 released. Bundles yubihsm-shell 2.7.3, yubihsm-connector 3.0.7, yubihsm-setup 2.3.4, yubihsm-ksp 2.6.0, and yubihsm-manager 1.0.0. developers.yubico.com/YubiHSM2/Relea…
YubiHSM Manager 1.0.0 released. New guided CLI for YubiHSM 2, replacing yubihsm-setup. Asymmetric, symmetric, and wrap key ops; X.509 cert management; device backup/restore; SunPKCS11 + KSP wizards; JSON session recording. Linux, macOS, Windows. developers.yubico.com/yubihsm-manage…
Today we’re launching Advanced Account Security for ChatGPT accounts, an opt-in setting for people at increased risk of digital attacks, such as journalists and public officials, and for anyone who wants our strongest account protections. AAS requires passkeys or physical security keys, disables password-based login, tightens recovery, shortens sessions, improves session visibility, and automatically excludes conversations from model training. These protections also mean users take on more responsibility for account recovery. We’re also partnering with @Yubico to make hardware security keys easier to adopt through preferred pricing on a YubiKey bundle for eligible ChatGPT account holders. Security keys are one of the strongest defenses against phishing, and this partnership helps make them more accessible.
Ready to secure your AI journey? Big news! Today we announced we've partnered with @OpenAI to bring custom-branded 2-packs of YubiKeys to the ChatGPT ecosystem! ✅ Phishing-resistant ✅ Passwordless ✅ The gold standard for AI protection Learn more: yubico.com/press-releases…
YubiKit Android 3.1.0: No Custom Credential UI using "fido-android-ui" 🆕 youtu.be/RRgsxGmj8XA?si… via @YouTube
Prof. Donald Knuth opened his new paper with "Shock! Shock!" Claude Opus 4.6 had just solved an open problem he'd been working on for weeks — a graph decomposition conjecture from The Art of Computer Programming. He named the paper "Claude's Cycles." 31 explorations. ~1 hour. Knuth read the output, wrote the formal proof, and closed with: "It seems I'll have to revise my opinions about generative AI one of these days." The man who wrote the bible of computer science just said that. In a paper named after an AI. Paper: cs.stanford.edu/~knuth/papers/…
if you use AI for coding read this:
python-fido2 2.1.0: CTAP 2.3 support + WebAuthn spec improvements * pinComplexityPolicy extension * UV_BLOCKED PIN fallback * WindowsClient hmac-secret-mc github.com/Yubico/python-…
YubiKit Swift SDK v1.1.0: CTAP2 support with async/await * makeCredential, getAssertion, PIN mgmt * PRF & credProtect extensions * Multi-frame CTAP HID Docs: yubico.github.io/yubikit-swift/… Changelog: github.com/Yubico/yubikit…
Wasadi Proltoco I🟢... @wasb_tocorl_app
2 Followers 11 Following
Ruoujo @Ruoujo641
183 Followers 7K Following The question isn’t who’s going to let me; it’s who’s going to stop me.
Peter @Peter1029169
1 Followers 63 Following
gaineslr @gaineslr
12 Followers 835 Following
DanaSouthey @AQ3JF0hqBS4gw5O
15 Followers 1K Following
OpheliaIngersoll @M2i1p0b9BJMmTJ
2 Followers 267 Following
PrincessScarlettMoore @Irwarloc664839
29 Followers 2K Following Powerful and unstoppable Creating my own path
デイトレードメ... @Aucece556487
58 Followers 2K Following 【完全無料】 25年の株式投資プロチーム(運用資産500億円以上)が提供:毎日の市場分析レポート + 優良成長株のピックアップ。プロの情報を無料で。まずはお気軽にお問い合わせください。
Jocelyn @5v94h638x5c24
37 Followers 1K Following
Goran Opacic @goranopacic
2K Followers 2K Following #AWS Data Hero and User Group Belgrade @awsugbelgrade leader, CEO of @Estehnet, Databases and Security, deep into #MySQL #Java #Docker and #HTTP since 0.9
食品・小売株の... @Gueeeeqo084
34 Followers 2K Following 【完全無料】 25年の株式投資プロチーム(運用資産500億円以上)が提供:毎日の市場分析レポート + 優良成長株のピックアップ。プロの情報を無料で。まずはお気軽にお問い合わせください。
RetailFlowPro🇺🇸 @Ablarbo04055
38 Followers 2K Following 15-30% Monthly | 2 High-Conviction Stocks.Short-Term Gains: 15-20% in Days/Weeks.DM "JOIN" for WhatsApp Alerts. Live Trade Signals • Market Analysis
Zrirxie @Zrirxie8261598
7 Followers 668 Following
OptionIncomeX🇺🇸 @Futea755833
45 Followers 2K Following 15-30% Monthly | 2 High-Conviction Stocks.Short-Term Gains: 15-20% in Days/Weeks.DM "JOIN" for WhatsApp Alerts. Live Trade Signals • Market Analysis
Koojor @Koojor103790
1 Followers 56 Following
Grayson Price @GraysonPri62231
117 Followers 3K Following
Tegu @Tegu9279
61 Followers 3K Following
Brawwi @Brawwi8148530
1 Followers 70 Following
Gaetano Thiel @ThielGaeta18323
83 Followers 3K Following
Joachim Moser @JoachimMo198_
70 Followers 2K Following Systematic trader: Stocks, ETFs, crypto. All kind of strategies: Mean reversion, momentum, trend following,...
Akshay Kumar @AkshayKuMsft
126 Followers 798 Following In Microsoft. My thoughts. Please don't treat retweets/likes as endorsements.
Tharnis @TharnisHf1z9_
34 Followers 1K Following
Tessmarsh @TessmarshJeSxk
31 Followers 4K Following
Ruederez @Ruederezy6b
58 Followers 4K Following
Seaghe @Seaghe9gV
47 Followers 4K Following
Options selling with ... @optionzcjp
147 Followers 4K Following Growth investor & selling options for a living 📈📉 Free options selling Facebook & Discord groups 👇🏻 Owner: @StockMCatalysts $TSLA investor since 2016
Glewdea @GlewdeaZ5Rb
54 Followers 4K Following
Dorendoughs @DorendoughsxS2
40 Followers 3K Following
Datawnisl @Datawnisl_rtvz
41 Followers 4K Following
McNetote @McNetoteiPQL
63 Followers 1K Following
ArleneLynch @ONf275t4h0K8Wo
42 Followers 4K Following
Raquat @Raquat419605
45 Followers 5K Following
Stogie Hub @stogiehub1
1K Followers 7K Following cigar smoker and Distributor message me for your cigar orders.
PrudenceBurke @Idql3TyQP0VmRY
69 Followers 7K Following
Heenoat @HeenoatrB70_
26 Followers 3K Following
Will @ Cigar Data @cigardata
733 Followers 4K Following UK based games programmer & cigar enthusiast. Obsessing over my humidor by night, making video games by day. I have opinions.
Genevieve @Genevieve462511
66 Followers 5K Following
Nathan Lambert @natolambert
91K Followers 919 Following Open model research @ something new. Prev. co-led Olmo at Ai2. Contact via email. Writes @interconnectsai Wrote The RLHF Book, 🏔️🏃♂️
Ornith @ornith_
10K Followers 114 Following For once you have tasted flight you will walk the earth with your eyes turned skywards.
Hannes Rudolph @hrudolph
1K Followers 284 Following Community and Developer Relations at @openclaw | Former Dev @RooCode
Rampage @rampagepoker
69K Followers 579 Following Playing poker because the trophies are really cool. Play Poker with me Online⬇️
Shann³ @shannholmberg
32K Followers 13K Following I cover AI marketing & growth. Sharing every framework as I build it. Founder @espressioai, @lunarstrategy
BridgeMind @bridgemindai
41K Followers 5 Following The home of the vibe coding movement. Founded by @matthewmillerai. 87K+ on YouTube. Building to $1M in public. https://t.co/wRtHrQMXKA
Matthew Miller @matthewmillerai
19K Followers 11 Following Vibe coding to $1M in public. Founder & CEO @bridgemindai
Men's Health Mag @MensHealthMag
4.2M Followers 1K Following Men's Health magazine is your ultimate guide to fitness, health, weight loss, nutrition, sex, style and guy wisdom.
Men's Journal @MensJournal
107K Followers 1K Following The best in men's gear, adventure, travel, whiskey, craft beer, style and more. Live a more adventurous life.
Mens Canvas @MensCanvas
138K Followers 5 Following Turning men into gentlemen - Master style, elevate personality, and perfect the details that define you.
OluKai @OluKai
6K Followers 541 Following Aloha was born in Hawaii, but it is a spirit not bound by geography. OluKai believes that everybody, no matter where they are, can live Aloha | #AnywhereAloha
Room & Board Modern F... @roomandboard
7K Followers 535 Following Modern furniture. Artisan crafted. Designed to last.
Arhaus @Arhaus
8K Followers 393 Following Ours is a story of quality. Of comfort. A longstanding tradition of artisan craftsmanship. Built on a commitment to honor the Earth and protect her resources.
ZEGNA @Zegna
125K Followers 480 Following Born in Oasi Zegna, leading luxury menswear globally since 1910.
Corneliani @Corneliani_com
3K Followers 109 Following Inspire men around the world to effortlessly style their lives to the fullest, through Italian sophistication, excellence and savoir-vivre.
loropiana @LoroPiana
6K Followers 2 Following On a quest for excellence, touching the exceptional in life since 1924.
Oliva Cigar Company @OlivaCigar
19K Followers 29 Following Must be 21 or older to follow. Raised in the greenest of valleys. Cured with patience, blended with wisdom. Hand-rolled, of course. Savor the craft, enjoy.
Mercedes-Benz @MercedesBenz
3.9M Followers 169 Following "The love of inventing never ends." - Carl Benz Learn more about us as we continue to pioneer the future of driving excellence.
Land Rover Discovery @LandRover
187K Followers 2 Following Official account of Land Rover Discovery. Experience the full house @RangeRover @Defender.
Bonobos Golf @BonobosGolf
1K Followers 232 Following A golf brand from Bonobos focused on fit, style, and performance.
Bonobos @Bonobos
41K Followers 340 Following Menswear founded on fit, built on service, and focused on style. However you fit, Bonobos fits you. Questions/comments? Email us at [email protected]!
TravisMathew @TRAVISMATHEW
63K Followers 538 Following Made to Meet the Moment. Designed for confidence and comfort, no matter where the day takes you.
Peter Millar @petermillar
45K Followers 1K Following Discerning luxury apparel, casual sportswear and innovative performance styles.
Vincent Koc @vincent_koc
23K Followers 7K Following Futurist 🦄 Chief Architect @openclaw 🦞 Writer @forbes Tech Council Adjunct @MIT Ex @Microsoft @Qantas
Ted Nyman @tnm
6K Followers 562 Following computers and statistics at openai. prev ceo at cased, cto github, eng banksimple. https://t.co/ppNMfi1g3i. "sf’s guardian angel"-ken jennings
Peter Steinberger �... @steipete
555K Followers 2K Following Polyagentmorous ClawFather. Came back from retirement to mess with AI and help a lobster take over the world. @OpenClaw🦞 + @OpenAI
DANΞ @cryps1s
16K Followers 491 Following CISO @OpenAI | Ex-CISO @PalantirTech | Occasional Shitposter | 🇺🇸 All views are my own, not my employer. Duh. (Tweets == 30d retention)
RunAnywhere (YC W26) @RunAnywhereAI
1K Followers 8 Following RunAnywhere: The default way of running on-device AI at scale. Backed by @ycombinator
Thariq @trq212
293K Followers 2K Following Claude Code @anthropicai. prev YC W20, @southpkcommons, @medialab
ClaudeDevs @ClaudeDevs
532K Followers 2 Following Official updates for developers building with @ClaudeAI
Google Gemma @googlegemma
88K Followers 0 Following The official home of Google's Gemma. Lightweight, state-of-the-art open models by Google DeepMind, built on Gemini tech. What will you build? 🚀💻
leopardracer @leopardracer
10K Followers 333 Following Researching AI, Crypto & Emerging Tech Sharing insights before they become headlines
Jess Yan @jess__yan
2K Followers 89 Following PM @anthropicai building Claude Managed Agents. Ex-@stripe
Stitch by Google @stitchbygoogle
161K Followers 6 Following Stitch by @GoogleLabs turns your ideas into beautiful interface designs, powered by some of the latest Gemini models. Try free of charge.
Google AI Studio @GoogleAIStudio
181K Followers 2 Following The fastest path from prompt to prototype to production with Gemini
Gavriel Cohen @Gavriel_Cohen
8K Followers 865 Following Creator of NanoClaw; ex VP at Concrete Media; ex https://t.co/LCZI5lx0sx developer team lead; BSc Physics and Computer Science at Tel Aviv University; @NanoClaw_AI
Nikita Bier @nikitabier
1.2M Followers 2K Following head of product @x, advisor @solana, venture partner @lightspeedvp, ex-founder @gasappteam (acq by discord), ex-founder @thetbhapp (acq by facebook)
yubrew @yubrew
2K Followers 2K Following building @bitsecai - finds code exploits in blockchain projects
OpenClaw🦞 @openclaw
540K Followers 24 Following The AI that does things. Emails, calendar, home automation, from your favorite chat app. Your machine, your rules. New shell, same lobster soul. 🦞
Rand Paul @RandPaul
6.0M Followers 812 Following U.S. Senator for Kentucky | I fight for the Constitution, individual liberty and the freedoms that make this country great.
Senator Rand Paul @SenRandPaul
334K Followers 468 Following I fight for Kentucky, individual rights, and the Constitution | This is an official government account for Senator Rand Paul.






















