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Kurt Opsahl

@kurtopsahl.bsky.social

AGC for Cybersecurity & Civil Liberties Policy at Filecoin Foundation, former Deputy ED and GC of EFF, now EFF Special Counsel, affiliate of BKC Harvard, board emeritus USENIX, advisor Open Archive, former Technical Advisory Council CISA. Skeets are my own

2,035 Followers  |  273 Following  |  138 Posts  |  Joined: 26.04.2023
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Posts by Kurt Opsahl (@kurtopsahl.bsky.social)

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New AirSnitch attack breaks Wi-Fi encryption in homes, offices, and enterprises That guest network you set up for your neighbors may not be as secure as you think.

Excellent article on the work by @dangoodin.bsky.social: arstechnica.com/security/202...

I'd say we bypass Wi-Fi encryption, in the sense that we can bypass client isolation. We don't break Wi-Fi authentication or encryption. Crypto is often bypassed instead of broken. And we bypass it ;)

26.02.2026 18:34 โ€” ๐Ÿ‘ 8    ๐Ÿ” 7    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0
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Under Indiaโ€™s pressure, Facebook let propaganda and hate speech thrive Facebook has retreated from its professed ideals in India under pressure from Prime Minister Narendra Modiโ€™s Bharatiya Janata Party.

Here we go. Free, no-reg versions of favorite stories from my four years at the Washington Post. First, three pieces from our Pulitzer-finalist series on how India's ruling party coerced U.S. tech giants into violating their own policies. www.washingtonpost.com/world/2023/0...

24.02.2026 22:23 โ€” ๐Ÿ‘ 131    ๐Ÿ” 60    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 6
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Large-scale online deanonymization with LLMs We show that large language models can be used to perform at-scale deanonymization. With full Internet access, our agent can re-identify Hacker News users and Anthropic Interviewer participants at hig...

And right on schedule: there goes pseudonymity on the Internet. arxiv.org/abs/2602.16800

25.02.2026 00:37 โ€” ๐Ÿ‘ 92    ๐Ÿ” 60    ๐Ÿ’ฌ 4    ๐Ÿ“Œ 9
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Judge says government may not search devices seized from Post reporter The ruling suggested that the federal judge in Virginia did not trust the government to conduct a narrow search of Hannah Natansonโ€™s devices.

www.washingtonpost.com/national-sec... The order: www.washingtonpost.com/documents/82...

24.02.2026 23:49 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

At @defcon.bsky.social last summer, hackers of all kinds convened to share #cyber research. The Hackersโ€™ Almanack translates this work into plain language to give policymakers a window into the latest in offensive AI, cybercrime, critical infrastructure vulnerabilities & more.
โžก๏ธ Read the Almanack:

23.02.2026 23:12 โ€” ๐Ÿ‘ 10    ๐Ÿ” 3    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0
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This App Warns You if Someone Is Wearing Smart Glasses Nearby The creator of Nearby Glasses made the app after reading 404 Media's coverage of how people are using Meta's Ray-Bans smartglasses to film people without their knowledge or consent. โ€œI consider it to ...

NEW: A hobbyist has created Nearby Glasses, an app that warns you if someone close by is wearing smart glasses. 404 Media spoke to the creator who said he was inspired by our coverage that uncovers how men are wearing Meta's Ray-Bans to covertly film massage parlor workers.

24.02.2026 15:48 โ€” ๐Ÿ‘ 11714    ๐Ÿ” 5026    ๐Ÿ’ฌ 148    ๐Ÿ“Œ 274
DEFย CONยฎ 34 Hacking Conference - Call for Policy papers DEF CON 34 will be August 6-9, 2026 at the Las Vegas Convention Center!

I'm joining the #wonksquad on the DEF CON Policy Review Board for DC34 - There are a bunch of different time-slots, formats, and topics available, so if is something you've been thinking about or working on, don't be shy!

DEFย CONยฎ 34 Hacking Conference - Call for Policy papers m.cje.io/4auEApg

23.02.2026 00:27 โ€” ๐Ÿ‘ 2    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Hackers Expose Age-Verification Software Powering Surveillance Web Three hacktivists tried to find a workaround to Discordโ€™s age-verification software. Instead, they found its frontend exposed to the open internet.

Hacktivists tried to find a workaround to Discordโ€™s age-verification software, Persona. Instead, they found its frontend exposed to the open internet, and that was just the beginning.

www.therage.co/persona-age-...

21.02.2026 23:40 โ€” ๐Ÿ‘ 1226    ๐Ÿ” 604    ๐Ÿ’ฌ 25    ๐Ÿ“Œ 57
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Job Announcement: Registrar of Voters - County of Alameda Introduction

Alameda County, California is searching for a new Registrar of Voters. This is a vital leadership role responsible for managing elections and ensuring every voice is heard. If you or someone you know is qualified, please apply here:

20.02.2026 20:45 โ€” ๐Ÿ‘ 1    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

๐Ÿ˜ฌ

21.02.2026 05:38 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Totally. I expect better from NYT

19.02.2026 21:04 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Trademark is designed to protect consumers so they know a branded product is from that brand, and allows the public nominative and other fair uses.

19.02.2026 20:46 โ€” ๐Ÿ‘ 13    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Copyright protects authors and artists โ€˜ creative expression, by proving exclusive rights for a limited time, and helps the public with fair use and eventually the public domain.

19.02.2026 20:44 โ€” ๐Ÿ‘ 12    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Donald J. Trump International Airport? The Presidentโ€™s Company Trademarked It.

www.nytimes.com/2026/02/18/u...

19.02.2026 20:23 โ€” ๐Ÿ‘ 4    ๐Ÿ” 0    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 0
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While it may seem pedantic, copyright and trademark protect different interests for different policy reasons. They are not interchangeable.

19.02.2026 20:22 โ€” ๐Ÿ‘ 51    ๐Ÿ” 7    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 3

Every muppet everywhere all at once.

19.02.2026 00:27 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Hacking conference Def Con bans three people linked to Epstein | TechCrunch The Def Con hacking conference banned hackers Pablos Holman and Vincenzo Iozzo, as well as former MIT Media Lab director Joichi Ito, from attending the annual conference after their reported connectio...

NEW: Def Con banned hackers Pablos Holmes and Vincenzo Iozzo, as well as former MIT Media Lab director Joichi Ito, from attending the conference based on their links to Jeffrey Epstein.

Holmes and Iozzo exchanged emails with Epstein for several years.

18.02.2026 22:06 โ€” ๐Ÿ‘ 115    ๐Ÿ” 37    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 4
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Leaked Email Suggests Ring Plans to Expand โ€˜Search Partyโ€™ Surveillance Beyond Dogs Ring's CEO told staff the feature is โ€œfirst for finding dogs,โ€ indicating a plan to expand.

Yeah, if you haven't turned on E2EE for Ring you might want to: "Leaked Email Suggests Ring Plans to Expand โ€˜Search Partyโ€™ Surveillance Beyond Dogs"

18.02.2026 16:45 โ€” ๐Ÿ‘ 1    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Pictures of the hotels with DEF CON room blocks

Pictures of the hotels with DEF CON room blocks

Good news, everyone!

The #DEFCON34 room blocks are live! While supplies last, you can get a special room rate at the Fontainebleau, Sahara,Wynn and Encore, and Circus Circus.

The links are all on defcon.org.

Weโ€™re halfway there. #DEFCON 34 will be upon us before you know it.

See you soon!

16.02.2026 00:00 โ€” ๐Ÿ‘ 33    ๐Ÿ” 14    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 2

Good news on the Bluesky front: @germnetwork.com now lets you send end-to-end encrypted DMs to your Bluesky friends!

15.02.2026 17:12 โ€” ๐Ÿ‘ 30    ๐Ÿ” 10    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1

We've noticed.

13.02.2026 20:43 โ€” ๐Ÿ‘ 169    ๐Ÿ” 23    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Meta Plans to Add Facial Recognition Technology to Its Smart Glasses

In an internal memo in May, Meta laid out its plans to release facial recognition in its smart glasses, to the blind first, & then to the general public.

โ€œCivil society groups that we would expect to attack us would have their resources focused on other concerns.โ€

www.nytimes.com/2026/02/13/t...

13.02.2026 12:08 โ€” ๐Ÿ‘ 222    ๐Ÿ” 149    ๐Ÿ’ฌ 18    ๐Ÿ“Œ 61
Vince Guaraldi - earliest television recording of "Linus and Lucy"
YouTube video by Lee Mendelson Film Productions, Inc. Vince Guaraldi - earliest television recording of "Linus and Lucy"

Actual footage of Vince Guaraldi performing "Linus and Lucy". I'm gobsmacked that this exists, but utterly thrilled too. www.youtube.com/watch?v=9EMf...

12.02.2026 19:45 โ€” ๐Ÿ‘ 1582    ๐Ÿ” 606    ๐Ÿ’ฌ 44    ๐Ÿ“Œ 95
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No One, Including Our Furry Friends, Will Be Safer in Ring's Amazon Ringโ€™s Super Bowl ad offered a vision of our streets that should leave every person unsettled about the companyโ€™s goals for disintegrating our privacy in public.In the ad, disguised as a

Ring has announced a new โ€œSearch Partyโ€ feature that could eventually bring mass biometric surveillance to our streets. Itโ€™s on by default. Shut it off.
www.eff.org/deeplinks/2...

10.02.2026 22:27 โ€” ๐Ÿ‘ 269    ๐Ÿ” 164    ๐Ÿ’ฌ 17    ๐Ÿ“Œ 14
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we need to talk about that Ring Super Bowl ad

10.02.2026 20:18 โ€” ๐Ÿ‘ 31313    ๐Ÿ” 13784    ๐Ÿ’ฌ 971    ๐Ÿ“Œ 1691
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Principal Research Scientist Remote

Cool/important job alert:

Principal Research Scientist at the Wikimedia Foundation's
Research team for the area of knowledge integrity

Job posting: job-boards.greenhouse.io/wikimedia/jo...

09.02.2026 20:07 โ€” ๐Ÿ‘ 94    ๐Ÿ” 63    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

no eres mis casa bonita
no eres mis esposa bonita

09.02.2026 01:33 โ€” ๐Ÿ‘ 3702    ๐Ÿ” 894    ๐Ÿ’ฌ 23    ๐Ÿ“Œ 9

GM: Charisma check.

Mamdani: [rolls natural 20]

GM: thatโ€™s a d6 how did you

Mamdani: [direct to camera] Did you know you can check out board games at your local public library? ๐Ÿ˜Š

07.02.2026 05:01 โ€” ๐Ÿ‘ 33622    ๐Ÿ” 6996    ๐Ÿ’ฌ 220    ๐Ÿ“Œ 182
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Filecoin Onchain Cloud: The Networkโ€™s Next Evolution Filecoin Onchain Cloud extends Filecoin beyond archival storage by introducing programmable storage, verifiable retrieval, and proof-gated, onchain payments for active cloud workloads.

Messariโ€™s report breaks down how teams are using Filecoin Onchain Cloud to create applications across AI, DePIN, and decentralized frontends.

Read the full report: messari.io/report/filec...

07.02.2026 21:11 โ€” ๐Ÿ‘ 0    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0