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Per Thorsheim

@thorsheim.bsky.social
891 followers 261 following 369 posts

Founder of #PasswordsCon. Above average interested in passwords & digital authentication. Online since 2400baud. I made the world use RFC 3207 STARTTLS for email encryption.

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Per Thorsheim @thorsheim.bsky.social · 2h
A physical piece of Internet history is up for auction at Christie's. The worlds first and possibly only real-world implementation of RFC 1149: Standard for the transmission of IP datagrams on avian carriers onlineonly.christies.com/s/fine-print...
onlineonly.christies.com
Carrier Pigeon Internet Protocol
[WAITZMAN, David and the BERGEN LINUX USER GROUP.] One printed IP/ICMP "ping" packet sent by carrier pigeon per RFC 1149.Small scroll of paper, 41 x 210 mm. Rolling creases visible from when attached ...
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Per Thorsheim @thorsheim.bsky.social · 23/09/2026
Det blir #Halloween Meetup hos Gritera i Oslo torsdag 29 oktober, med oppmøte fra kl 16:30. Påmelding: send melding til meg. Som vanlig har vi en dedikert gruppe på Signal. Vi har en *skremmende* lyntale på plass allerede, men ønsker å få inn flere forslag.
2 scary halloween pumpkin heads with glowing yellow light inside of them.
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Per Thorsheim @thorsheim.bsky.social · 22/09/2026
Watching the orange monkey on stage in the UN. Can't wait for the midterms.
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Report URI @report-uri.bsky.social · 22/09/2026
We’ve rolled out Device Bound Session Credentials to 100% of Report URI logins. 🔐 67.7% of our active sessions are already device-bound, making this what we believe to be one of the first production DBSC deployments outside Google. Here’s how we did it: blog.report-uri.com/we-rolled-ou...
blog.report-uri.com
We rolled out Device Bound Session Credentials to every Report URI login
Since 1st September 2026, every single login to Report URI has been offered a Device Bound Session Credential. That's 100% of our users, on the live site, all day, every day. As far as we can tell, t...
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The Tennessee Holler @thetnholler.bsky.social · 19/09/2026
😬🤷🏼
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jon greig @jgreig.bsky.social · 15/09/2026
Law enforcement agencies in Norway are investigating whether Norwegian telecom Telenor aided crimes against humanity through its work providing customer data to the brutal military regime currently governing Myanmar therecord.media/norway-inves...
therecord.media
Norway announces investigations into telecom Telenor’s work with Myanmar junta
Oslo-based Telenor potentially enabled crimes against humanity and violated sanctions in its dealings with the military regime that took over Myanmar in 2021, Norwegian authorities said.
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Per Thorsheim @thorsheim.bsky.social · 15/09/2026
Meetup hos Gritera i Oslo torsdag 29 oktober. Halloween 👻 🎃 tema! Påmelding kommer. Forslag til lyntaler sendes til meg. Tema: skrekkhistorier fra virkeligheten. 😈 Takk til Nina Pettersen & Brede Trollsås!
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Per Thorsheim @thorsheim.bsky.social · 09/09/2026
Today I did my presentation «Praise to the few and fury to those without: convincing Norway to do RPKI ROA & ASPA» at NONOG-8 in Oslo. Conference program & recording available here: nonog.net/events/nonog...
nonog.net
NONOG-8 / NIX-2026 – NONOG
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Per Thorsheim @thorsheim.bsky.social · 06/09/2026
No @adobe.com, I won't install your spyware intended to check if I am running cracked versions of your software. This for sure isn't to protect me from potential malware! Nag me again and my current license for Lightroom will end. Period. I've moved on to other alternatives for everything else.
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Per Thorsheim @thorsheim.bsky.social · 04/09/2026
Please mr orange, do not come to Oslo for the king's funeral. This isn't your funeral, and we don't want this to be a "show" for you.
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Per Thorsheim @thorsheim.bsky.social · 03/09/2026
AS5619 (my employer) now has valid BGP RPKI ASPA in place. Most do not know, understand or care. Me? Celebrating all alone.
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Per Thorsheim @thorsheim.bsky.social · 02/09/2026
I FIND YOUR LACK OF FAITH IN BGP RPKI & DNSSEC DISTURBING meme picture.
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Per Thorsheim @thorsheim.bsky.social · 02/09/2026
Hey Americans & Canadians! It seems Apple Maps have caved to Trump's demand for "Lake Amerika", but only in the US. (screenshot from 08:06 Sept 2, 2026) Best regards from Norway
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Per Thorsheim @thorsheim.bsky.social · 31/08/2026
Updated my free in-browser mailcheck tool again, this time adding a new tab for connection test for your browser: dnssec validation, IPv6 and BGP RPKI test. Github: github.com/thorsheim/Ma... Live use: passwordscon.org/mailcheck/
github.com
GitHub - thorsheim/Mailcheck: Standalone html that runs in your browser to check any domain: DNSSEC, MX, PTR, DANE, SPF, DKIM, DMARC, BIMI, TLS-RPT, MTA-STS, CAA, RPKI, Security.txt and WHOIS info.
Standalone html that runs in your browser to check any domain: DNSSEC, MX, PTR, DANE, SPF, DKIM, DMARC, BIMI, TLS-RPT, MTA-STS, CAA, RPKI, Security.txt and WHOIS info. - thorsheim/Mailcheck
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Brian Honan @brianhonan.bsky.social · 29/08/2026
Happy Skynet day to all those who celebrate
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Per Thorsheim @thorsheim.bsky.social · 20/08/2026
November 2025 sjekket jeg dns/web/epost sikkerhet hos de 13 selskapene som da var godkjent av NSM for hendelseshåndtering. Nå er det 15 på listen, og det var på tide å ta en ny sjekk. www.linkedin.com/pulse/godkje...
linkedin.com
Godkjent av NSM for hendelseshåndtering - del 2
28 November 2025 skrev jeg artikkel her på Linkedin om DNS, Web og epost sikkerhet hos de 13 selskapene som på det tidspunktet var godkjent gjennom Nasjonal sikkerhetsmyndighet sin kvalitetsordning fo...
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Joseph Lorenzo Hall, PhD @josephhall.org · 15/08/2026
Key takeaways from JP Aumasson (@veorq) at Black Hat Asia on realistic PQC migration: Symmetric ciphers like AES are safe, but public key encryption faces Harvest Now, Decrypt Later risks today. Prioritize TLS and KEMs over signatures. youtu.be/_M0of-6aLpk 1/3
Conference presenter at Black Hat Asia 2026 introduces an agenda slide titled "Post-quantum cryptography" listing: What is PQC?; NIST standards and deadlines; performance trade-offs; regional PQC initiatives; PQ HTTPS adoption, accompanied by a white cat image.
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Per Thorsheim @thorsheim.bsky.social · 13/08/2026
I've made lots of updates to my free in-browser dns/email checker. Github: github.com/thorsheim/Ma... Live: passwordscon.org/mailcheck/ No trackers. Free. In your browser.
github.com
GitHub - thorsheim/Mailcheck: Standalone html that runs in your browser to check any domain: DNSSEC, MX, PTR, DANE, SPF, DKIM, DMARC, BIMI, TLS-RPT, MTA-STS, CAA, RPKI, Security.txt and WHOIS info.
Standalone html that runs in your browser to check any domain: DNSSEC, MX, PTR, DANE, SPF, DKIM, DMARC, BIMI, TLS-RPT, MTA-STS, CAA, RPKI, Security.txt and WHOIS info. - thorsheim/Mailcheck
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Per Thorsheim @thorsheim.bsky.social · 13/08/2026
Voss herad bruker Microsoft for epost, og får 100% score på DNS & epost sikkerhet. Politiets IT-enhet (politiet) får bare 75% score. På Personverndagene 2026 14 -16 september holder jeg kurs om DNS & epost sikkerhet. Sjekk ut fullt program og meld deg på her: personverndagene.no
personverndagene.no
Personverndagene 2026 – Norges største konferanse for personvern
Personverndagene 2026 samler nærmere 400 personverneksperter til faglige foredrag, workshops og nettverksbygging i Trondheim 14.–16. september.
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Per Thorsheim @thorsheim.bsky.social · 12/08/2026
Finishing my analysis on BGP RPKI ROA & ASPA deployments across entire RIPE.net coverage area for 2 upcoming talks. Also: running Claude to better understand / figure out the BGP vulnerabilities @spacerog.bsky.social, @weld.bsky.social & rest of L0pht warned about back in May 1998. 🤩
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Per Thorsheim @thorsheim.bsky.social · 06/08/2026
A software PTZ controller for up to 4 cameras, usable from Mac, iPad and iPhone — like a hardware PTZ joystick controller, but on your screens. First version. Small node server on mac/linux, then use any browser on any device for control and video preview. github.com/thorsheim/vP...
github.com
GitHub - thorsheim/vPTZcontroller: Software PTZ controller for OBSBOT Tail Air / Tail 2 cameras — VISCA-over-IP bridge + touch web control surface for Mac/iPad/iPhone
Software PTZ controller for OBSBOT Tail Air / Tail 2 cameras — VISCA-over-IP bridge + touch web control surface for Mac/iPad/iPhone - thorsheim/vPTZcontroller
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MeidasTouch @meidastouch.com · 04/08/2026
Stolen valor from Mr. Bone Spurs. An insult to every man and woman who has worn the uniform.
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Dwayne McDaniel @mdwayne-real.bsky.social · 05/08/2026
The Synthetic Insider: Securing Non-Human Identities in Cloud Workflows Mackenzie Jackson #BSidesLV 2026 #PasswordsCon
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Dwayne McDaniel @mdwayne-real.bsky.social · 04/08/2026
#BSidesLV 2026 #PasswordsCon Criminal Hijacking: Profiling Threat Actors engaged in session takeover with Infostealer Logs Eric Clay and Eric Boivin
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Dwayne McDaniel @mdwayne-real.bsky.social · 04/08/2026
#BSidesLV 2026 #PasswordsCon My email address is an API key? from Joe Leon
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Dwayne McDaniel @mdwayne-real.bsky.social · 04/08/2026
#BSidesLV 2026 #PasswordsCon The Dots Do Matter: Gmail's Invisible Blindspot from Keren Elazari
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Dwayne McDaniel @mdwayne-real.bsky.social · 04/08/2026
#BSidesLV 2026 Last minute change up, I am going to be presenting a 3rd talk TODAY at noon as part of #PasswordsCon Come see "From Pets To Cattle To Agents: Evolving Identity And Security For Workloads" You will not want to miss it!!
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Per Thorsheim @thorsheim.bsky.social · 04/08/2026
#PasswordsCon track for tuesday Aug 4 (today) @bsideslv.org streaming live on Youtube: www.youtube.com/watch?v=GhYS...
youtube.com
BsidesLV 2026 - PasswordsCon - Tuesday
YouTube video by BSidesLV
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Per Thorsheim @thorsheim.bsky.social · 01/08/2026
Linkedin (still) promoting the use of their AI tools for different purposes while also introducing an option for reporting ads and posts as AI slop is … well… I really do not know how to describe it. 🤷
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Rachel Tobac @racheltobac.bsky.social · 30/07/2026
The new “⚠️Seems like AI slop” button on LinkedIn is sending me into orbit lmao
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Dan Goodin @dangoodin.bsky.social · 30/07/2026
A quantum-resistant cryptography algorithm that was under consideration to become an official US standard has been taken out of the running after an Anthropic security model helped find a flaw that rendered it broken. arstechnica.com/security/202...
arstechnica.com
Mythos attack on 3rd-round PQC algorithm candidate puts it out of commission
HAWK withstood years of testing that had yet to uncover a fatal weakness found through Mythos.
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Per Thorsheim @thorsheim.bsky.social · 29/07/2026
I will do a talk titled "Praise to the few and fury to those without: convincing Norway to do RPKI ROA & ASPA" at NONOG-8 in Oslo on September 9. I sincerely hope to see people from all Norwegian ISPs or organisations handling BGP towards the Internet in the room. nonog.net/events/nonog...
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Per Thorsheim @thorsheim.bsky.social · 27/07/2026
Updated my in-browser DNS/email security checker to include latest DMARCbis RFCs (9989, 9990 & 9991) in a new section of the DMARC tab. Code at github.com/thorsheim/Ma..., with live version available here: passwordscon.org/mailcheck/
github.com
GitHub - thorsheim/Mailcheck: Standalone html that runs in your browser to check any domain: DNSSEC, MX, PTR, DANE, SPF, DKIM, DMARC, BIMI, TLS-RPT, MTA-STS, CAA, RPKI, Security.TXT and WHOIS info.
Standalone html that runs in your browser to check any domain: DNSSEC, MX, PTR, DANE, SPF, DKIM, DMARC, BIMI, TLS-RPT, MTA-STS, CAA, RPKI, Security.TXT and WHOIS info. - thorsheim/Mailcheck
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Per Thorsheim @thorsheim.bsky.social · 23/07/2026
#PasswordsCon is coming to Munster Technological University in Cork, Ireland, December 8-9! Additionally our Chatham house rule day will be on December 7, while the Cyber Research Conference Ireland (CRCI) will be at the same location on December 10. Info & more: events.mtu.ie/index.cfm?pa...
events.mtu.ie
MTU Events -
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Per Thorsheim @thorsheim.bsky.social · 21/07/2026
#PasswordsCon
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BSides Las Vegas @bsideslv.org · 11/07/2026
The BSides Las Vegas schedule is out. We have a lot of talks across several tracks this year. All the details are online at: bsideslv.org/schedule
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Per Thorsheim @thorsheim.bsky.social · 06/07/2026
🇳🇴🇳🇴🇳🇴
static.klipy.com
Viking Ship Braving Stormy Seas
ALT: Viking Ship Braving Stormy Seas
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Gale Sinatra @galesinatra.bsky.social · 27/06/2026
I think we just passed oops.
A timeline of climate change concern.
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Stop Hacklore! @hacklore.bsky.social · 26/06/2026
Hacklore spreads through word of mouth as much as it does more official channels. Fight back against zombie advice. 🧟‍♀️ Send the hacklore.org website to at least two friends today so they can learn what really keeps accounts and devices safe! 🔐
At a bar, a zombie tells another patron to not use public wi-fi. The other person is wearing a hacklore.org t-shirt.
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Per Thorsheim @thorsheim.bsky.social · 23/06/2026
Skriv en falsk pinkode på betalingskortene dine. Da kan du lure skurkene som stjeler dine kort, varsle bankene og redde pengene dine. Enkelt og veldig lurt!
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Per Thorsheim @thorsheim.bsky.social · 23/06/2026
På #Personverndagene 2026 skal jeg holde kurs for å vise hvordan man kan gratis teste internett sikkerheten for egen organisasjon, leverandører og andre. Risiko vil bli forklart, nødvendige tiltak blir gjennomgått, og du får en sjekkliste med det du trenger til jobben. personverndagene.no
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Per Thorsheim @thorsheim.bsky.social · 18/06/2026
Post-kvante Kryptografi (PQC) er fremtidens sikring av data i møte med trusselen fra kvantedatamaskiner. En god del norske nettsteder har allerede støtte for dette, i den grad det er mulig å sette opp. Jeg har sjekket! thorsheim.net/pqc/
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JonZoidberg @jonzoidberg.xyz · 17/06/2026
All you have to do is change the date.
Donald J. Trump @realDonaldTrump

X.com

The deal with Iran will go down as one of the most incompetent ever made. The U.S. lost on virtually every point. We just don't win anymore!

9:35 PM 9/2/15 From Manhattan, NY
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Per Thorsheim @thorsheim.bsky.social · 16/06/2026
I'm sorry, but whenever I hear or see discussions about tactics etc in the FIFA World Cup on national news, this is what I think the reality actually is. Also: I seriously do not take any interest whatsoever in football.
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Katie Moussouris (she/her/she-hulk/she-ra)🌻 @k8em0.bsky.social · 15/06/2026
I wrote about what was actually in that #Fable guardrail bypass research paper, and why it should never have triggered an #AI model export control. We can't export control our way to cyber resilience. So many tshirt ideas. www.lutasecurity.com/post/the-fab...
me wearing a black tshirt with pink writing.
Front: fix this codeme wearing a black tshirt with pink writing.
Back: this shirt is a munition
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Per Thorsheim @thorsheim.bsky.social · 11/06/2026
Stencil style image. A sad software developer sits on the street with his laptop while people are passing by. A poster says "Need money for tokens" with a small bucket in front of it.
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Per Thorsheim @thorsheim.bsky.social · 03/06/2026
Jeg viste spoofing i 2019 og forklarte mulighetene og konsekvensene gjennom en rekke foredrag, artikler og mediesaker, som i tillegg til Norge også dekket Sverige og Danmark. Så kommer Harrison Sand & NRK, BOOM! *IGJEN* Jeg har kommentert til NRK. www.nrk.no/norge/sarbar...
nrk.no
Sårbarhet avdekket: Telia og Ice kunne misbrukes i spoofingforsøk
To av Norges største teleselskaper hadde en feil som gjorde det mulig å tyvlåne andres telefonnummer.
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Per Thorsheim @thorsheim.bsky.social · 03/06/2026
Protip: add your name, address, alternative phone number & email to the lockscreen of your phone! In case you forget it somewhere, it will be so much easier for others to return the phone to you.
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Per Thorsheim @thorsheim.bsky.social · 03/06/2026
github.com/thorsheim/lo... A tiny, private, browser-based tool to turn any photo into a phone lockscreen that shows who the phone belongs to — so a lost or misplaced phone can find its way back to you. Everything runs locally in your browser. No image is ever uploaded — there is no server.
github.com
GitHub - thorsheim/lockscreen-generator
Contribute to thorsheim/lockscreen-generator development by creating an account on GitHub.
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Per Thorsheim @thorsheim.bsky.social · 03/06/2026
Praktisk tips før du skal ut på tur: legg til kontaktinfo på telefonens låseskjerm! AI genererte bilder av katt og hund. Mia er helt ekte, bilde brukt med tillatelse.
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