Spencer
@spencerwhitman.bsky.social
Working at the intersection of AI and security
Using AI and automation to accelerate the adoption of secure frameworks at scale, enabling consistent security enforcement and efficient migration across Meta’s vast codebase.
engineering.fb.com/2025/12/15/a...
engineering.fb.com/2025/12/15/a...
How AI Is Transforming the Adoption of Secure-by-Default Mobile Frameworks
Meta’s secure-by-default frameworks wrap potentially unsafe OS and third-party functions, making security the default while preserving developer speed and usability. These frameworks are designed t…
engineering.fb.com
December 16, 2025 at 3:23 AM
Using AI and automation to accelerate the adoption of secure frameworks at scale, enabling consistent security enforcement and efficient migration across Meta’s vast codebase.
engineering.fb.com/2025/12/15/a...
engineering.fb.com/2025/12/15/a...
Reposted by Spencer
Just updated the Big LLM Architecture Comparison article...
...it grew quite a bit since the initial version in July 2025, more than doubled!
magazine.sebastianraschka.com/p/the-big-ll...
...it grew quite a bit since the initial version in July 2025, more than doubled!
magazine.sebastianraschka.com/p/the-big-ll...
December 13, 2025 at 2:22 PM
Just updated the Big LLM Architecture Comparison article...
...it grew quite a bit since the initial version in July 2025, more than doubled!
magazine.sebastianraschka.com/p/the-big-ll...
...it grew quite a bit since the initial version in July 2025, more than doubled!
magazine.sebastianraschka.com/p/the-big-ll...
Reposted by Spencer
Re-upping this, since it's only available for two days:
A brief return of the Murderbot Humble Bundle! The charity is still World Central Kitchen.
Unlock and upgrade in the Return to Metroidvania rebundle, read up on exciting Sci-Fi with Matha Wells’ Murderbot & more, and add character to your game environments with the Best of Synty 4 Game Dev Assets rebundles! https://bit.ly/4oxXmjd
December 11, 2025 at 2:52 AM
Re-upping this, since it's only available for two days:
Reposted by Spencer
You may have heard that in three weeks, the affordability provisions that make healthcare accessible for about 20 million Americans will expire.
Healthcare in the US is already very expensive. The lapse of these provisions will make it even more so.
But what exactly does that mean?
Healthcare in the US is already very expensive. The lapse of these provisions will make it even more so.
But what exactly does that mean?
December 10, 2025 at 1:18 PM
You may have heard that in three weeks, the affordability provisions that make healthcare accessible for about 20 million Americans will expire.
Healthcare in the US is already very expensive. The lapse of these provisions will make it even more so.
But what exactly does that mean?
Healthcare in the US is already very expensive. The lapse of these provisions will make it even more so.
But what exactly does that mean?
Reposted by Spencer
I wrote up some notes on two new papers on prompt injection: Agents Rule of Two (from Meta AI) and The Attacker Moves Second (from Anthropic + OpenAI = DeepMind + others) simonwillison.net/2025/Nov/2/n...
New prompt injection papers: Agents Rule of Two and The Attacker Moves Second
Two interesting new papers regarding LLM security and prompt injection came to my attention this weekend. Agents Rule of Two: A Practical Approach to AI Agent Security The first is …
simonwillison.net
November 2, 2025 at 11:10 PM
I wrote up some notes on two new papers on prompt injection: Agents Rule of Two (from Meta AI) and The Attacker Moves Second (from Anthropic + OpenAI = DeepMind + others) simonwillison.net/2025/Nov/2/n...
Reposted by Spencer
Reposted by Spencer
If this stuff would end up on the news it would absolutely motivate voters. Plenty of people who don't give a shit about politics would absolutely give af about this.
CHICAGO — Outside an elementary school during dismissal… horrifying. What have we become?
October 9, 2025 at 6:52 PM
If this stuff would end up on the news it would absolutely motivate voters. Plenty of people who don't give a shit about politics would absolutely give af about this.
Reposted by Spencer
Meta FAIR just released CWD: a dense 32B code world model
What’s a Code World Model? Well, it’s trained to know the effect of code, rather than just mimicking the semantics
hf: huggingface.co/facebook/cwm
paper: ai.meta.com/research/pub...
What’s a Code World Model? Well, it’s trained to know the effect of code, rather than just mimicking the semantics
hf: huggingface.co/facebook/cwm
paper: ai.meta.com/research/pub...
September 24, 2025 at 11:38 PM
Meta FAIR just released CWD: a dense 32B code world model
What’s a Code World Model? Well, it’s trained to know the effect of code, rather than just mimicking the semantics
hf: huggingface.co/facebook/cwm
paper: ai.meta.com/research/pub...
What’s a Code World Model? Well, it’s trained to know the effect of code, rather than just mimicking the semantics
hf: huggingface.co/facebook/cwm
paper: ai.meta.com/research/pub...
Reposted by Spencer
This. Is. Insane.
Read this, please.
Read this, please.
Deporting children of military veterans because they were born on an overseas military base.
This man has no citizenship now.
This man has no citizenship now.
Texas Man Born to U.S. Soldier on U.S. Army Base Abroad Deported
He has no citizenship to any country, despite SCOTUS case
www.austinchronicle.com
June 26, 2025 at 10:14 PM
This. Is. Insane.
Read this, please.
Read this, please.
Reposted by Spencer
Donald Trump just unilaterally bombed Iran. A masked gang is terrorizing our streets. America has rapidly devolved into an authoritarian state.
That's why, today, The Onion has purchased a full page ad in today's New York Times with a simple plea to Congress:
Sit back and do absolutely nothing.
That's why, today, The Onion has purchased a full page ad in today's New York Times with a simple plea to Congress:
Sit back and do absolutely nothing.
June 22, 2025 at 2:36 PM
Donald Trump just unilaterally bombed Iran. A masked gang is terrorizing our streets. America has rapidly devolved into an authoritarian state.
That's why, today, The Onion has purchased a full page ad in today's New York Times with a simple plea to Congress:
Sit back and do absolutely nothing.
That's why, today, The Onion has purchased a full page ad in today's New York Times with a simple plea to Congress:
Sit back and do absolutely nothing.
Reposted by Spencer
Just a reminder going forward...
(cartoon from 2003)
(cartoon from 2003)
June 22, 2025 at 2:53 PM
Just a reminder going forward...
(cartoon from 2003)
(cartoon from 2003)
Reposted by Spencer
Happy #BlackHistoryMonth !
Feb 3:
Q: Why do Black people see racism in everything? C'mon, everything can't be racist! Maybe it's all in your heads!
A:
Read the whole linked thread.
Feb 3:
Q: Why do Black people see racism in everything? C'mon, everything can't be racist! Maybe it's all in your heads!
A:
Read the whole linked thread.
mekka okereke :verified: (@[email protected])
Happy #BlackHistoryMonth !
I'm still not ready to talk about Black history. I still want to talk about white US history.
Q: Why do Black people see racism in everything?
A: A few years ago, Europea...
hachyderm.io
February 3, 2025 at 4:58 AM
Happy #BlackHistoryMonth !
Feb 3:
Q: Why do Black people see racism in everything? C'mon, everything can't be racist! Maybe it's all in your heads!
A:
Read the whole linked thread.
Feb 3:
Q: Why do Black people see racism in everything? C'mon, everything can't be racist! Maybe it's all in your heads!
A:
Read the whole linked thread.
Reposted by Spencer
Nazi salutes can't hurt you. Nazi policies can.
How're people more agitated by a nazi salute than by nazi policies? I don't get it.🤷🏿♂️
👨🏼"Well, now it's open fascism!"
Why is closed fascism any better? The same policies are happening.
Your assignment hasn't changed: Protect the most vulnerable.
How're people more agitated by a nazi salute than by nazi policies? I don't get it.🤷🏿♂️
👨🏼"Well, now it's open fascism!"
Why is closed fascism any better? The same policies are happening.
Your assignment hasn't changed: Protect the most vulnerable.
January 20, 2025 at 9:19 PM
Nazi salutes can't hurt you. Nazi policies can.
How're people more agitated by a nazi salute than by nazi policies? I don't get it.🤷🏿♂️
👨🏼"Well, now it's open fascism!"
Why is closed fascism any better? The same policies are happening.
Your assignment hasn't changed: Protect the most vulnerable.
How're people more agitated by a nazi salute than by nazi policies? I don't get it.🤷🏿♂️
👨🏼"Well, now it's open fascism!"
Why is closed fascism any better? The same policies are happening.
Your assignment hasn't changed: Protect the most vulnerable.
Reposted by Spencer
Elon: *makes an unambiguous Nazi salute during inauguration speech*
The entire American press:
The entire American press:
January 20, 2025 at 9:15 PM
Elon: *makes an unambiguous Nazi salute during inauguration speech*
The entire American press:
The entire American press:
Reposted by Spencer
If you live in one of these 10 states (AZ, TX AR, MS, FL, GA, TN, KY, IN, OH), today is THE LAST DAY you can register to vote. Even if you think you're registered already, double check to see if your registration is still active. Please do this, it only takes a few minutes. Pass it on.
October 7, 2024 at 3:16 PM
If you live in one of these 10 states (AZ, TX AR, MS, FL, GA, TN, KY, IN, OH), today is THE LAST DAY you can register to vote. Even if you think you're registered already, double check to see if your registration is still active. Please do this, it only takes a few minutes. Pass it on.
Bluesky now has over 10 million users, and I was #32,186!
September 17, 2024 at 10:24 PM
Bluesky now has over 10 million users, and I was #32,186!
Reposted by Spencer
Three days after it was revealed that this guy's license was wrongly listed as suspended due to a clerical error, none of the publications listed here (NYT, WP, NYP, USA Today, BBC, CNN, Fox, MSNBC) have issued corrections or updates.
reason.com/2024/06/03/t...
reason.com/2024/06/03/t...
The viral story about a defendant driving with a suspended license was fake news
Corey Harris' case should never have been a national news story to begin with.
reason.com
June 4, 2024 at 12:26 AM
Three days after it was revealed that this guy's license was wrongly listed as suspended due to a clerical error, none of the publications listed here (NYT, WP, NYP, USA Today, BBC, CNN, Fox, MSNBC) have issued corrections or updates.
reason.com/2024/06/03/t...
reason.com/2024/06/03/t...
My work buddy is back!
May 4, 2023 at 3:56 PM
My work buddy is back!
Should my following and what’s got feeds look basically identical? Am I skeeting wrong?!
May 4, 2023 at 3:05 PM
Should my following and what’s got feeds look basically identical? Am I skeeting wrong?!