Dr Brianna Rosen
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briannarosen.bsky.social
Dr Brianna Rosen
@briannarosen.bsky.social
560 followers 160 following 5 posts
Senior Fellow and Director, AI and Emerging Tech Initiative at Just Security | Senior Research Associate at the University of Oxford | Formerly White House NSC

Website: www.drbriannarosen.com
Posts Replies Media Videos
Reposted by Dr Brianna Rosen
marydudziak.bsky.social
Congratulations to @briannarosen.bsky.social on the upcoming publication of Perpetual War and International Law: Enduring Legacies of the War on Terror.
My contribution: How Law, History, and Culture Enabled Perpetual War.
global.oup.com/academic/pro...
September 11, 2025 at 3:14 PM
Reposted by Dr Brianna Rosen
justsecurity.org
New book alert! 📚
"Perpetual War and International Law: Enduring Legacies of the War on Terror" (OUP), ed @briannarosen.bsky.social.

Marking 24th anniversary of #September11, it offers a timely reflection on how the post-9/11 era shapes contemporary conflicts.
www.justsecurity.org/120313/perpe...
Book Release – Perpetual War and International Law: Enduring Legacies of the War on Terror
Introducing a new book series confronting the enduring legacies of the post-9/11 era and exploring viable alternatives to the use of force.
www.justsecurity.org
September 11, 2025 at 12:53 PM
Reposted by Dr Brianna Rosen
justsecurity.org
The Trump administration has released its long-awaited #AI Action Plan.

Leading experts Josh Geltzer, Jennifer Marron, @briannarosen.bsky.social, and @samwl.bsky.social unpack the plan, its implications, and what lies ahead.

www.justsecurity.org/117752/just-...
The Just Security Podcast: Decoding Trump’s AI Playbook: The AI Action Plan and What Comes Next
Joshua Geltzer, Jenny Marron and Sam Winter-Levy join Brianna Rosen on the show to discuss the Trump administration's U.S. AI Action Plan.
www.justsecurity.org
July 24, 2025 at 6:06 PM
briannarosen.bsky.social
On the heels of the DoD presser and congressional briefings on Iran...

My latest on how the growing politicization of the U.S. #IntelligenceCommunity undermines decision-making on Iran and national security more broadly. 👇

#MidnightHammer #ODNI

www.justsecurity.org/115642/intel...
Intelligence Implications of the Shifting Iran Strike Narrative
How the growing politicization of U.S. Intelligence Community under Trump undermines the integrity of decision-making on Iran and national security more broadly.
www.justsecurity.org
June 26, 2025 at 7:50 PM
Reposted by Dr Brianna Rosen
rgoodlaw.bsky.social
Must read piece

Directly engaging issues of the day on US strike on Iran

@briannarosen.bsky.social focuses on the high stakes in concerns about the politicization of intelligence community's work.

She also offers concrete proposals to address the identified risks.
Intelligence Implications of the Shifting Iran Strike Narrative
How the growing politicization of U.S. Intelligence Community under Trump undermines the integrity of decision-making on Iran and national security more broadly.
www.justsecurity.org
June 26, 2025 at 7:13 PM
Reposted by Dr Brianna Rosen
rgoodlaw.bsky.social
A must read analysis. I can't recommend this highly enough.

True expertise on the most pressing issues now.

By @briannarosen.bsky.social @tessbridgeman.bsky.social and Nima Gerami
The Day After U.S. Strikes on Iran’s Nuclear Program: A Policy and Legal Assessment
An expert policy and legal assessment of the U.S. strikes on Iran's nuclear facilities and what comes next.
www.justsecurity.org
June 22, 2025 at 7:24 PM
Reposted by Dr Brianna Rosen
blavatnikschool.bsky.social
With rising conflict between Israel and Iran, Dr @briannarosen.bsky.social‬ highlights the critical strategic challenges facing the US. 👇
June 20, 2025 at 1:00 PM
Reposted by Dr Brianna Rosen
kimzetter.bsky.social
Regarding recent news that Microsoft et al plan to *not* eliminate silly threat actor names, @ciaranm.bsky.social m.bsky.social and Jen Easterly weigh in on the silliness and call for a moratorium on ridiculous marketing names for state-sponsored Russian/Chinese/Iranian/NK hacker groups.
Call Them What They Are: Time to Fix Cyber Threat Actor Naming
The Microsoft-CrowdStrike partnership on cyber threat actor naming conventions is welcome, but more comprehensive reform is needed to serve defenders and the public.
www.justsecurity.org
June 13, 2025 at 12:07 PM
Reposted by Dr Brianna Rosen
justsecurity.org
Listen to @ldfreedman.bsky.social, @janinadill.bsky.social, & @briannarosen.bsky.social's expert discussion, part of Oxford University's Calleva-Airey Neave Global Security Seminar Series:

www.justsecurity.org/113355/podca...
The Just Security Podcast: Peace Diplomacy and the Russo-Ukraine War
How should we understand the prospects for sustainable peace in Ukraine amidst geopolitical and battlefield uncertainty?
www.justsecurity.org
May 14, 2025 at 1:26 PM
Reposted by Dr Brianna Rosen
justsecurity.org
Ahead of peace talks in Istanbul tomorrow, @ldfreedman.bsky.social sits down with @janinadill.bsky.social & @briannarosen.bsky.social to discuss the future of the Russian-Ukraine War.

www.justsecurity.org/113355/podca...
The Just Security Podcast: Peace Diplomacy and the Russo-Ukraine War
How should we understand the prospects for sustainable peace in Ukraine amidst geopolitical and battlefield uncertainty?
www.justsecurity.org
May 14, 2025 at 1:26 PM
Reposted by Dr Brianna Rosen
justsecurity.org
Is a distinct Trump strategy for AI beginning to emerge—and what will that mean for the United States and the rest of the world? 

Joshua Geltzer in conversation with @briannarosen.bsky.social on #TheJustSecurityPodcast

www.justsecurity.org/110517/the-j...
The Just Security Podcast: Trump’s AI Strategy Takes Shape
Is a distinct Trump strategy for AI beginning to emerge—and what will that mean for the United States and the rest of the world?
www.justsecurity.org
April 17, 2025 at 6:28 PM
Reposted by Dr Brianna Rosen
blavatnikschool.bsky.social
The need for safe and secure technology has never been more urgent. We’ve launched the Oxford Programme for Cyber and Technology Policy to help governments adopt AI and emerging tech responsibly 📊🤝

Co-directed by @ciaranm.bsky.social & @briannarosen.bsky.social 👇
Professor Ciaran Martin introduces the Oxford Programme for Cyber and Technology Policy
The need for safe and secure technology has never been more urgent. The Oxford Programme for Cyber and Technology Policy (OxCTP) helps governments navigate t...
www.youtube.com
April 10, 2025 at 10:00 AM
Reposted by Dr Brianna Rosen
justsecurity.org
(2/2) Listen to our podcast, where @briannarosen.bsky.social, Lennart Heim, Keegan McBride, & @typewriters.bsky.social unpack the implications for national security and U.S.-China competition. ⬇️

www.justsecurity.org/107337/just-...
The Just Security Podcast: Diving Deeper into DeepSeek
Brianna Rosen, Lennart Heim, Keegan McBride, & Lauren Wagner discuss what DeepSeek means for national security and U.S. policy going forward.
www.justsecurity.org
April 8, 2025 at 6:11 PM
Reposted by Dr Brianna Rosen
ciaranm.bsky.social
A huge thanks to Richard Horne, head of 🇬🇧 National Cyber Security Centre, for being the inaugural guest at the Oxford Cyber & Tech Policy Programme on Wednesday. Thx to the large crowd in person & online too!

Memorable evening; more to come

@blavatnikschool.bsky.social
@ox.ac.uk @ncsc.gov.uk
March 15, 2025 at 12:36 PM
Reposted by Dr Brianna Rosen
ciaranm.bsky.social
Next up for the Oxford Cyber and Tech Policy Programme: so excited to announce that we’ll have, all the way from Australia, the world authority on data breaches, the one and only Troy Hunt!

Weds 26th March at 5pm.

Sign up online or in person 1/2

www.bsg.ox.ac.uk/events/lesso...
Lessons from billions of data breaches
Hear from Troy Hunt, creator of “Have I Been Pwned”, about the lessons he has learned after processing 15 billion records of breached data.
www.bsg.ox.ac.uk
March 15, 2025 at 12:41 PM
Reposted by Dr Brianna Rosen
blavatnikschool.bsky.social
It's not too late to register for tonight's launch of the Oxford Programme for Cyber and Technology Policy, co-directed by Prof @ciaranm.bsky.social and Dr @briannarosen.bsky.social. Join online or in person at the School. 👇
www.bsg.ox.ac.uk/events/launc...
March 12, 2025 at 11:25 AM
Reposted by Dr Brianna Rosen
blavatnikschool.bsky.social
'Mistakes are going to be made, and some of those mistakes may have very serious consequences.'

Dr Brianna Rosen (@briannarosen.bsky.social) comments in @theguardian.com on the Israeli military's creation of a ChatGPT-like tool. 👇
Revealed: Israeli military creating ChatGPT-like tool using vast collection of Palestinian surveillance data
The powerful new AI model is designed to analyze intercepted communications – but experts say such systems can exacerbate biases and are prone to making mistakes
buff.ly
March 7, 2025 at 3:00 PM
Reposted by Dr Brianna Rosen
ciaranm.bsky.social
It's a vital time to try to make sense of tech and cyber policy issues. So over the next few months, following there'll be a whole series of expert speakers from all over the world. There'll be research projects and other stuff too.

More details of the programme are here 2/2 bit.ly/3F25RSJ
New programme to help governments navigate cyber and emerging technologies
With ransomware and AI-driven cyberattacks on the rise, the need for a safe and secure cyberspace has never been more important. To help governments navigate the cyber frontier and encourage the respo...
bit.ly
March 3, 2025 at 7:25 PM
Reposted by Dr Brianna Rosen
ciaranm.bsky.social
So pleased to announce the launch event for the new @blavatnikschool.bsky.social at Oxford Tech and Cyber Policy Programme.

The brilliant Richard Horne, head of the National Cyber Security Centre, will be speaking next Weds at 5pm.

Sign up in person or online! 1/2

bit.ly/3D66x98
Launch of the Oxford Programme for Cyber and Technology Policy
Join us for the launch of the Oxford Programme for Cyber and Technology Policy (OxCTP). Professor Ciaran Martin and Richard Horne, CEO of the NCSC, will discuss the evolving cyber threat landscape and...
bit.ly
March 3, 2025 at 7:25 PM
Reposted by Dr Brianna Rosen
blavatnikschool.bsky.social
📢 Just announced: Richard Horne, CEO of the UK's National Cyber Security Centre (@ncsc.gov.uk) to join Professor @ciaranm.bsky.social at the launch of the Oxford Programme of Cyber and Technology Policy.

📅 12 March, at the School or online

Register ⬇️
https://buff.ly/432saS8
February 24, 2025 at 10:01 AM
Reposted by Dr Brianna Rosen
justsecurity.org
The Artificial Intelligence Action Summit recently concluded in Paris, France.

@briannarosen.bsky.social, Director of Just Security’s AI and Emerging Technologies Initiative, joins the podcast to discuss key takeaways from the Summit.

Listen 👇
www.justsecurity.org/107813/podca...
The Just Security Podcast: Key Takeaways from the Artificial Intelligence Action Summit
Brianna Rosen joins the podcast to recap key takeaways from the recently concluded Artificial Intelligence Action Summit.
www.justsecurity.org
February 12, 2025 at 6:37 PM
Reposted by Dr Brianna Rosen
blavatnikschool.bsky.social
📣 NEW: The Oxford Programme for Cyber and Technology Policy, directed by Prof @ciaranm.bsky.social and Dr @briannarosen.bsky.social

📅 The launch event on 12th March will feature a senior member of the UK National Cyber Security Centre in partnership with @justsecurity.org.

🔗 lnkd.in/eNxR47WK
New programme to help governments navigate cyber and emerging technologies
With ransomware and AI-driven cyberattacks on the rise, the need for a safe and secure cyberspace has never been more important. To help governments navigate the cyber frontier and encourage the responsible of adoption of emerging technologies, the Blavatnik School is establishing the Oxford Programme for Cyber and Technology Policy.
www.bsg.ox.ac.uk
February 10, 2025 at 1:29 PM
Reposted by Dr Brianna Rosen
justsecurity.org
Is there a tech coup underway in the US? What does it mean for democracy and global #AI governance?

Just Security's @briannarosen.bsky.social sat down with @marietjeschaake.bsky.social to discuss her latest book, tech policy under Trump, and what comes next.

www.justsecurity.org/105395/qa-ma...
Q&A with Mariejte Schaake on the Tech Coup and Trump
A Q&A with Mariejte Schaake, author of The Tech Coup: How to Save Democracy from Silicon Valley, on Big Tech and threats to democracy.
www.justsecurity.org
February 6, 2025 at 3:00 PM
Reposted by Dr Brianna Rosen
blavatnikschool.bsky.social
We are delighted to announce the appointment of Amal Clooney as a Visiting Professor of Practice in international law at the Blavatnik School of Government.

@ox.ac.uk

🔗 www.bsg.ox.ac.uk/news/amal-cl...
February 6, 2025 at 10:31 AM
Reposted by Dr Brianna Rosen
justsecurity.org
Beyond the hype, we dispel myths and misconceptions surrounding China's #DeepSeekAI.

Dive deeper into DeepSeek with @briannarosen.bsky.social, Lennart Heim, Keegan McBride, & @typewriters.bsky.social:

justsecuritypodcast.buzzsprout.com/2074610/epis...
Diving Deeper into DeepSeek - The Just Security Podcast
The tech industry is calling this AI’s “Sputnik Moment” – and President Donald Trump has said it’s a “wake-up call” for U.S. companies. We’re talking about DeepSeek, the Chinese AI startup that has ra...
justsecuritypodcast.buzzsprout.com
February 4, 2025 at 1:42 PM