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Dr Nestori Syynimaa

@drazuread.com
2.3K followers 346 following 89 posts

Principal Identity Security Researcher @Microsoft. Ex-Secureworks (PhD, MSc, MEng, CITP, CCSK). And yes, opinions are my own ;)

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Dr Nestori Syynimaa @drazuread.com · 27/05/2026
Full paper available here (requires registration): www.scitepress.org/Link.aspx?do...
scitepress.org
SCITEPRESS
Digital Library
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Dr Nestori Syynimaa @drazuread.com · 27/05/2026
3. OST developers do consider ethical questions, and they tend to view the positive consequences as outweighing the negatives.
scitepress.org
SCITEPRESS
Digital Library
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Dr Nestori Syynimaa @drazuread.com · 27/05/2026
2. OST developers are motivated by the positive consequences of publishing their tools (see the picture). In essence, they are not primarily interested in money, although publishing OSTs can make them well known in the industry.
scitepress.org
SCITEPRESS
Digital Library
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Dr Nestori Syynimaa @drazuread.com · 27/05/2026
Summary of findings: 1. There is no single path to becoming an OST developer; educational background does not necessarily matter. However, university studies have helped some in their research.
scitepress.org
SCITEPRESS
Digital Library
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Dr Nestori Syynimaa @drazuread.com · 27/05/2026
The paper is titled "Inside Hackers' Minds: A Qualitative Study of Offensive Security Tool Developers", and it seeks to understand people behind OSTs used by thousands globally every day.
scitepress.org
SCITEPRESS
Digital Library
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Dr Nestori Syynimaa @drazuread.com · 27/05/2026
Last week I presented at #ICEIS conference in Benidorm 🇪🇸 the final research paper related to my PhD studies at University of Jyväskylä.
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Dr Nestori Syynimaa @drazuread.com · 21/04/2026
New family member has finally arrived! #c64ultimate #FoundersEdition
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Dr Nestori Syynimaa @drazuread.com · 02/04/2026
Not this year 😕
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Dr Nestori Syynimaa @drazuread.com · 01/04/2026
Finally, I decided to monetize #AADInternals and created an OnlyFans account! If you like to see some really cool content and give support, take a look and subscribe here: onlyfans.aadinternals.com
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Dr Nestori Syynimaa @drazuread.com · 12/03/2026
@disobeyfi.bsky.social recordings are out now! www.youtube.com/playlist?lis...
youtube.com
Disobey 2026 Presentations - YouTube
Public presentations from Disobey 2026
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Dr Nestori Syynimaa @drazuread.com · 09/03/2026
Thanks to all the hackers who participated in the interviews; the world will now have a better understanding of the great minds behind the offensive tools used daily by thousands!
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Dr Nestori Syynimaa @drazuread.com · 09/03/2026
Got some great news last week! My research paper titled "Inside Hackers' Mind: A Qualitative Study of Offensive Security Tool Developers" was accepted to be presented at the iceis.scitevents.org conference at the end of May 🎉
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Dr Nestori Syynimaa @drazuread.com · 24/02/2026
Recording available here: youtu.be/6MoV7SEEkJg
youtu.be
Identity Control Plane Under Attack: Consent Abuse and Hybrid Sync Risks
YouTube video by Microsoft Security Community
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Dr Nestori Syynimaa @drazuread.com · 23/02/2026
Getting ready for #ELDK2026! I've got some #AADInternals stickers, just come and say hi to get one. The first one will also get a rare challenge 🪙!
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Dr Nestori Syynimaa @drazuread.com · 19/02/2026
Folks, there's an interesting security community call next week on Mon Feb 23rd at 8am PST (I'll be speaking too): "Identity Control Plane Under Attack: Consent Abuse and Hybrid Sync Risks" Register now 👉 aka.ms/securitycomm...
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Dr Nestori Syynimaa @drazuread.com · 11/01/2026
Hey peeps, anyone attending Disobey.fi next month?
disobey.fi
Disobey
Disobey - The Nordic Security Event
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Dr Nestori Syynimaa @drazuread.com · 12/12/2025
Taking my new @msrc.microsoft.com shirt out for a spin!
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Dr Nestori Syynimaa @drazuread.com · 11/12/2025
Catching up with @tiraniddo.dev and @fromsteph2u.bsky.social #MSRCBlackHat researcher celebration party!
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Dr Nestori Syynimaa @drazuread.com · 10/12/2025
Hashtag correction: #BlackHatEurope 😆
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Dr Nestori Syynimaa @drazuread.com · 10/12/2025
If you see this guy in #BöavkHayEurope, come say hi to get your #AADInternals sticker or the official "The non-US tour 2025" shirt!
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Dr Nestori Syynimaa @drazuread.com · 20/10/2025
Heading to Buenos Aires, wish me luck 😬
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Dr Nestori Syynimaa @drazuread.com · 20/10/2025
Perfect luggage weight for the #EkoParty!
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Dr Nestori Syynimaa @drazuread.com · 13/10/2025
There's some room for sure!
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Dr Nestori Syynimaa @drazuread.com · 21/09/2025
youtube.com/@orangecon?s...
youtube.com
OrangeCon
Community Driven Cybersecurity Conference Experience the Hackers Community in The Netherlands! OrangeCon is a community driven, non-profit Cybersecurity Conference in the heart of The Netherlands. Mee...
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Dr Nestori Syynimaa @drazuread.com · 03/09/2025
One of the best sessions I've seen for years! A deep-dive to Entra architecture, high availability, etc. 🤯 Must see for all Entra enthusiasts!
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Reposted by Dr Nestori Syynimaa
Disobey_Fi @disobeyfi.bsky.social · 05/08/2025
You know you want to speak at Disobey 2026. And now is your chance to do that! Our CfP is open at: cfp.disobey.fi/disobey-2026/ Check the guidelines from the link and send your proposal by Sep 30th!
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Dr Nestori Syynimaa @drazuread.com · 01/08/2025
Checking pre-vacation research notes..
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Dr Nestori Syynimaa @drazuread.com · 11/07/2025
Congratulations to all who renewed their Microsoft MVP status for the next year 🎉🔥
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Dr Nestori Syynimaa @drazuread.com · 04/07/2025
Updated to include RomHack: www.identitysummit.cloud orangecon.nl www.mcttp.de www.brucon.org romhack.io www.blackhat.com/sector/2025/
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Dr Nestori Syynimaa @drazuread.com · 04/07/2025
My Central Europe / Canada tour looks like this, looking forward to seeing excellent presentations and having inspiring discussions 🔥 See you in September! www.identitysummit.cloud orangecon.nl www.mcttp.de www.brucon.org www.blackhat.com/sector/2025/
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Dr Nestori Syynimaa @drazuread.com · 27/06/2025
Slides from my @wearetroopers.bsky.social talk are available at aadinternals.com/talks
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Dr Nestori Syynimaa @drazuread.com · 25/06/2025
nOAuth revisited by @ericonidentity.com at @wearetroopers.bsky.social
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Dr Nestori Syynimaa @drazuread.com · 25/06/2025
And so it begins.. First @wearetroopers.bsky.social conference day! I've got some rare #AADInternals challenge coins with me and this one goes to first one who asks for it
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Dr Nestori Syynimaa @drazuread.com · 23/06/2025
✅️ slide deck ✅️ demos ✅️ stickers ✅️ challenge coins ✅️ running shoes All ready for the TROOPERS 2025 @wearetroopers.bsky.social
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Reposted by Dr Nestori Syynimaa
Ru Campbell @campbell.scot · 20/06/2025
New video: Had a cool run through with @lukasberancz into the kind of gaps DART identify commonly in incident response, then a deeper dive on hardware based credential providers like macOS Platform SSO. WATCH: youtu.be/qZV3IeWsRd0
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Dr Nestori Syynimaa @drazuread.com · 12/06/2025
Feeling confused..
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Dr Nestori Syynimaa @drazuread.com · 03/06/2025
Checked out the first gig of @durandurancom.bsky.social summer tour with wifey at Nokia Arena @tampere.fi 😎
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Dr Nestori Syynimaa @drazuread.com · 20/05/2025
The compulsory studies of my doctoral programme at University of Jyväskylä are now completed! Next step: dissertation 📘
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Dr Nestori Syynimaa @drazuread.com · 16/05/2025
After some testing, there is a clear bug to be fixed, but also something else I still need to figure out.
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Dr Nestori Syynimaa @drazuread.com · 13/05/2025
Walking down the memory lane in Oxford 🇬🇧 with wifey. Ten years ago this day we became husband and wife ❤️
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Dr Nestori Syynimaa @drazuread.com · 11/05/2025
Ran this route in Oxford last time 10 years ago.
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Dr Nestori Syynimaa @drazuread.com · 11/05/2025
It seems that it can get the password for the MSA account, but starting the service as MSA fails. Need to do some debugging.
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Dr Nestori Syynimaa @drazuread.com · 10/05/2025
The second one yes!
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Dr Nestori Syynimaa @drazuread.com · 10/05/2025
One clear sign of getting old is when your Inspector Morse pub crawl ends after the second stop 🥱
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Dr Nestori Syynimaa @drazuread.com · 10/05/2025
Getting ready for #TROOPERS 10k: Morning 🏃‍♂️‍➡️ around the Hyde Park!
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Dr Nestori Syynimaa @drazuread.com · 04/05/2025
🤣🤣🤣
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Dr Nestori Syynimaa @drazuread.com · 28/04/2025
Happy to share that my talk "The Ultimate Guide for Protecting Hybrid Identities in Entra ID" was accepted to #TROOPERS! troopers.de/troopers25/t...
troopers.de
The Ultimate Guide for Protecting Hybrid Identities in Entra ID
TROOPERS is more than just an infoSec con. Hands-on, high-end knowledge sharing leaves you motivated and charged to
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Reposted by Dr Nestori Syynimaa
Mark Russinovich @markrussinovich.bsky.social · 21/04/2025
Read about our progress on securing Microsoft in our Secure Future Initiative update:
microsoft.com
Securing our future: April 2025 progress report on Microsoft’s Secure Future Initiative | Microsoft Security Blog
The Microsoft Secure Future Initiative (SFI) stands as the largest cybersecurity engineering project in history and most extensive effort of its kind at Microsoft. Now, we are sharing the second SFI p...
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Dr Nestori Syynimaa @drazuread.com · 18/04/2025
To get CAE tokens, use -CAE switch when getting access tokens. The resulting token has longer validity period (if supported by the service) and xml_cc claim.
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Dr Nestori Syynimaa @drazuread.com · 18/04/2025
Token Protection allows getting tokens with PRT and session key. As tokens are encrypted, they can't be stolen with AitM (sorry @mrgretzky.breakdev.org)
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