Frederic Jacobs
@fredericjacobs.com
Cryptographic & Security Engineering
www.fredericjacobs.com
https://ger.mx/A-RGsldmQt0iXfnzPgXNzLzA5_jvDbWHabqz1yJrt2ma#did:plc:oxwmqopgbm3driwzues7odpz
www.fredericjacobs.com
https://ger.mx/A-RGsldmQt0iXfnzPgXNzLzA5_jvDbWHabqz1yJrt2ma#did:plc:oxwmqopgbm3driwzues7odpz
Pinned
Frederic Jacobs
@fredericjacobs.com
· Nov 14
Frederic Jacobs (@[email protected])
1.88K Posts, 2.39K Following, 5.45K Followers · Cryptographic & Security Engineering
Previously: Lead iOS Developer @[email protected]
Tooting on all things #cryptography, #security, #climate,...
mastodon.social
Awesome to see so many new faces here, leaving the Muskosphere.
I will try to cross-post here more, but my main channel is on Mastodon for now:
mastodon.social/@fj
I will try to cross-post here more, but my main channel is on Mastodon for now:
mastodon.social/@fj
Reposted by Frederic Jacobs
En librairies 👇
November 8, 2025 at 6:29 AM
En librairies 👇
Reposted by Frederic Jacobs
Reposted by Frederic Jacobs
US citizen shot from behind as he warned ICE agents children would be coming to get bus, lawyers say
U.S. citizen shot from behind as he warned ICE agents about children gathering at bus stop, lawyers say
Lawyers for Carlos Jimenez said he was in fear after an agent threatened him with chemical spray, then pointed a gun at him.
www.latimes.com
November 2, 2025 at 11:25 PM
US citizen shot from behind as he warned ICE agents children would be coming to get bus, lawyers say
Reposted by Frederic Jacobs
I wrote (but didn't proofread at all) open.substack.com/pub/foxchape... a post about why the semiconductor firm that's been all over the news is, actually, a fraud.
Lots of stuff the media didn't spot:
- The founder is a Kickstarter scammer
- He is apparently also solving nuclear fusion
- Nepotism
Lots of stuff the media didn't spot:
- The founder is a Kickstarter scammer
- He is apparently also solving nuclear fusion
- Nepotism
I think Substrate is fraudulent: Part 1
Part 1 of an investigation into Substrate, a semiconductor firm that has garnered a lot of attention in recent weeks.
open.substack.com
October 30, 2025 at 11:52 PM
I wrote (but didn't proofread at all) open.substack.com/pub/foxchape... a post about why the semiconductor firm that's been all over the news is, actually, a fraud.
Lots of stuff the media didn't spot:
- The founder is a Kickstarter scammer
- He is apparently also solving nuclear fusion
- Nepotism
Lots of stuff the media didn't spot:
- The founder is a Kickstarter scammer
- He is apparently also solving nuclear fusion
- Nepotism
Reposted by Frederic Jacobs
To give an example of what I mean, here's a paragraph from the Grokipedia "article" on ICE.
The three citations are to The Heritage Foundation, testimony from the Executive Director of FAIR, and a report from the Center for Immigration Studies.
No dissenting voices allowed on Grokipedia.
The three citations are to The Heritage Foundation, testimony from the Executive Director of FAIR, and a report from the Center for Immigration Studies.
No dissenting voices allowed on Grokipedia.
![Economic and Border Security Effects
ICE's enforcement actions, including interior arrests and removals, contribute to reducing the net fiscal burden of unlawful immigration on U.S. taxpayers, which imposes an estimated annual cost of at least $110 billion after subtracting taxes paid by unlawful households.[157] Unlawful immigrants and their U.S.-born children consume public services—such as education, Medicaid, and welfare—at rates exceeding their tax contributions, with per-household net costs averaging $8,776 annually as of 2024 data.[158] By prioritizing removals of criminal noncitizens and recent arrivals, ICE operations yield fiscal savings through decreased expenditures on these services; for instance, standard economic modeling of enforcement shows net benefits to natives and legal residents from reduced unlawful population size, with surplus gains estimated at billions annually in avoided costs.[159]](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:2vtbmhmrwzbqcfv4we4uxzzt/bafkreidltkveytnladkueo3gb3aqc4vp3kbw7gec7rss2cfi7tamn3wpmi@jpeg)
October 28, 2025 at 4:18 PM
To give an example of what I mean, here's a paragraph from the Grokipedia "article" on ICE.
The three citations are to The Heritage Foundation, testimony from the Executive Director of FAIR, and a report from the Center for Immigration Studies.
No dissenting voices allowed on Grokipedia.
The three citations are to The Heritage Foundation, testimony from the Executive Director of FAIR, and a report from the Center for Immigration Studies.
No dissenting voices allowed on Grokipedia.
Reposted by Frederic Jacobs
Europe is paralyzed, crippled by a lack of strategic vision, the rise of the far right, & the multiplication of caretaker governments.
To achieve the EU's geopolitical ambitions, member states must address their citizens' concerns, says @rmomtaz.bsky.social.
carnegieendowment.org/europe/strat...
To achieve the EU's geopolitical ambitions, member states must address their citizens' concerns, says @rmomtaz.bsky.social.
carnegieendowment.org/europe/strat...
Europe’s Broken National Politics Hamper its Geopolitical Power
Europe is paralyzed, crippled by a lack of strategic vision, the surge of far-right forces, and the multiplication of caretaker governments. To achieve the union’s geopolitical ambitions, EU member st...
carnegieendowment.org
October 21, 2025 at 12:00 PM
Europe is paralyzed, crippled by a lack of strategic vision, the rise of the far right, & the multiplication of caretaker governments.
To achieve the EU's geopolitical ambitions, member states must address their citizens' concerns, says @rmomtaz.bsky.social.
carnegieendowment.org/europe/strat...
To achieve the EU's geopolitical ambitions, member states must address their citizens' concerns, says @rmomtaz.bsky.social.
carnegieendowment.org/europe/strat...
Reposted by Frederic Jacobs
October 18, 2025 at 9:37 AM
Reposted by Frederic Jacobs
continues to be insane that we're letting a 12-year-old run a major car company
Elon's cars are already dangerous, now he'll let people use a "self-driving" mode that ignores the speed limit. What could go wrong? #teslatakedown #MuskMustFall
electrek.co/2025/10/16/t...
electrek.co/2025/10/16/t...
Tesla brings back 'Mad Max' 'Full Self-Driving' mode that ignores speed limits
Tesla has brought back its 'Mad Max' mode for 'Full Self-Driving (Supervised) that ignores speed limits amid several investigations.
electrek.co
October 17, 2025 at 5:58 PM
continues to be insane that we're letting a 12-year-old run a major car company
Reposted by Frederic Jacobs
Rather than ramping up their own weapons production, European countries are giving in to Trump's demand that they pay simply to transfer American weapons to Ukraine (since the US is stopping direct military aid).
Is 🇺🇸 profiting off 🇺🇦 suffering?
Is 🇺🇸 profiting off 🇺🇦 suffering?
NATO got PURLed yesterday
Eastern and Northern European defence ministers have agreed to an extortionate American demand to pay to be middlemen in Ukraine arms delivery—further locking in Europe's military dependence.
davekeating.substack.com
October 16, 2025 at 5:41 AM
Rather than ramping up their own weapons production, European countries are giving in to Trump's demand that they pay simply to transfer American weapons to Ukraine (since the US is stopping direct military aid).
Is 🇺🇸 profiting off 🇺🇦 suffering?
Is 🇺🇸 profiting off 🇺🇦 suffering?
Reposted by Frederic Jacobs
Reposted by Frederic Jacobs
2 milliards d’euros levés en deux mois. Une décacorne française. Des licornes qui éclosent partout. L’Europe, longtemps spectatrice du grand bal numérique américain, s’invite à la table de l’intelligence artificielle. Et si cette fois, on ne ratait pas le coche ?
lel.media/le-vent-de-l...
lel.media/le-vent-de-l...
Le vent de l’IA souffle sur l’Europe
2 milliards d’euros levés en deux mois. Une décacorne française. Des licornes qui éclosent partout. L’Europe, longtemps spectatrice du grand bal numérique américain, s’invite à la table de l’intellige...
lel.media
October 8, 2025 at 4:20 AM
2 milliards d’euros levés en deux mois. Une décacorne française. Des licornes qui éclosent partout. L’Europe, longtemps spectatrice du grand bal numérique américain, s’invite à la table de l’intelligence artificielle. Et si cette fois, on ne ratait pas le coche ?
lel.media/le-vent-de-l...
lel.media/le-vent-de-l...
Reposted by Frederic Jacobs
Over the weekend, Trump's deputy chief of staff for policy Stephen Miller repeatedly attacked judges, calling them part of an "organized terrorist attack" on the US government....
On Saturday, the home of a judge who ruled against Trump, went up in flames
time.com/7323442/sout...
On Saturday, the home of a judge who ruled against Trump, went up in flames
time.com/7323442/sout...
House of South Carolina Judge Criticized by Trump Administration Set Ablaze
Authorities are investigating a fire at the home of a South Carolina judge who had reportedly received death threats in what could be the latest incident of political violence across the country.
time.com
October 6, 2025 at 9:53 AM
Over the weekend, Trump's deputy chief of staff for policy Stephen Miller repeatedly attacked judges, calling them part of an "organized terrorist attack" on the US government....
On Saturday, the home of a judge who ruled against Trump, went up in flames
time.com/7323442/sout...
On Saturday, the home of a judge who ruled against Trump, went up in flames
time.com/7323442/sout...
Reposted by Frederic Jacobs
The Brookings Institute found that Charlie Kirk was the 2nd largest misinformation spreader among podcasts they analysed.
"Mr. Kirk, a conservative activist and the founder of Turning Point USA, ranked second, with 17 percent of his episodes containing an unsubstantiated or false claim."
Gifted:
"Mr. Kirk, a conservative activist and the founder of Turning Point USA, ranked second, with 17 percent of his episodes containing an unsubstantiated or false claim."
Gifted:
Steve Bannon’s Podcast Is Top Misinformation Spreader, Study Says (Published 2023)
www.nytimes.com
September 26, 2025 at 3:10 PM
The Brookings Institute found that Charlie Kirk was the 2nd largest misinformation spreader among podcasts they analysed.
"Mr. Kirk, a conservative activist and the founder of Turning Point USA, ranked second, with 17 percent of his episodes containing an unsubstantiated or false claim."
Gifted:
"Mr. Kirk, a conservative activist and the founder of Turning Point USA, ranked second, with 17 percent of his episodes containing an unsubstantiated or false claim."
Gifted:
Reposted by Frederic Jacobs
1/ A longtime Wired editor just wrote a mush-brained essay about how he totally missed the political rot of Silicon Valley (& still doesn't get it).
But in the late 1990s, a Wired journalist warned of a toxic ideology bubbling up from tech. Paulina Borsook has largely been erased. Let's change that
But in the late 1990s, a Wired journalist warned of a toxic ideology bubbling up from tech. Paulina Borsook has largely been erased. Let's change that
September 24, 2025 at 6:36 PM
1/ A longtime Wired editor just wrote a mush-brained essay about how he totally missed the political rot of Silicon Valley (& still doesn't get it).
But in the late 1990s, a Wired journalist warned of a toxic ideology bubbling up from tech. Paulina Borsook has largely been erased. Let's change that
But in the late 1990s, a Wired journalist warned of a toxic ideology bubbling up from tech. Paulina Borsook has largely been erased. Let's change that
Reposted by Frederic Jacobs
It goes on! If you are in the US on a H-1B you can't safely leave now. Conference? Sister's wedding? Grandfather's funeral? Can't do, might not be allowed back in.
Why would skilled talent subject themselves to this?
Why would skilled talent subject themselves to this?
September 20, 2025 at 9:50 AM
It goes on! If you are in the US on a H-1B you can't safely leave now. Conference? Sister's wedding? Grandfather's funeral? Can't do, might not be allowed back in.
Why would skilled talent subject themselves to this?
Why would skilled talent subject themselves to this?
Reposted by Frederic Jacobs
Besides the effects on the tech industry, right now there are H-1B holders—people—who built a life in the US.
If they are traveling, they have 17 hours to get back to the US, or the life they built will be shattered and taken from them.
Can you imagine constantly living with this uncertainty?
If they are traveling, they have 17 hours to get back to the US, or the life they built will be shattered and taken from them.
Can you imagine constantly living with this uncertainty?
September 20, 2025 at 9:15 AM
Besides the effects on the tech industry, right now there are H-1B holders—people—who built a life in the US.
If they are traveling, they have 17 hours to get back to the US, or the life they built will be shattered and taken from them.
Can you imagine constantly living with this uncertainty?
If they are traveling, they have 17 hours to get back to the US, or the life they built will be shattered and taken from them.
Can you imagine constantly living with this uncertainty?
Reposted by Frederic Jacobs
Since his return to power, U.S. President Donald Trump has relentlessly questioned and challenged democracy at home & abroad.
This U.S. withdrawal from democratic leadership offers Europe a chance to step up, writes Thomas Carothers.
carnegieendowment.org/europe/strat...
This U.S. withdrawal from democratic leadership offers Europe a chance to step up, writes Thomas Carothers.
carnegieendowment.org/europe/strat...
A Less Democratic America: Implications for Europe
Since his return to power, U.S. President Donald Trump has relentlessly questioned and challenged democracy at home and abroad. In an increasingly illiberal world, the U.S. withdrawal from democratic ...
carnegieendowment.org
September 16, 2025 at 12:52 PM
Since his return to power, U.S. President Donald Trump has relentlessly questioned and challenged democracy at home & abroad.
This U.S. withdrawal from democratic leadership offers Europe a chance to step up, writes Thomas Carothers.
carnegieendowment.org/europe/strat...
This U.S. withdrawal from democratic leadership offers Europe a chance to step up, writes Thomas Carothers.
carnegieendowment.org/europe/strat...
Reposted by Frederic Jacobs
❔| #TTP: With Trump, Has Europe Capitulated?
Europeans tried to appease the Trump administration by pledging to buy U.S. weapons & accepting a disadvantageous trade deal.
Experts discuss whether the EU is being pragmatic or surrendering its principles👇
carnegieendowment.org/europe/strat...
Europeans tried to appease the Trump administration by pledging to buy U.S. weapons & accepting a disadvantageous trade deal.
Experts discuss whether the EU is being pragmatic or surrendering its principles👇
carnegieendowment.org/europe/strat...
Taking the Pulse: With Trump, Has Europe Capitulated?
Over the past months, Europeans have tried to appease the Trump administration by pledging to raise their defense spending, and dedicate much of that increase to buying U.S. weapons, while accepting a...
carnegieendowment.org
August 28, 2025 at 11:55 AM
❔| #TTP: With Trump, Has Europe Capitulated?
Europeans tried to appease the Trump administration by pledging to buy U.S. weapons & accepting a disadvantageous trade deal.
Experts discuss whether the EU is being pragmatic or surrendering its principles👇
carnegieendowment.org/europe/strat...
Europeans tried to appease the Trump administration by pledging to buy U.S. weapons & accepting a disadvantageous trade deal.
Experts discuss whether the EU is being pragmatic or surrendering its principles👇
carnegieendowment.org/europe/strat...
Reposted by Frederic Jacobs
What can go wrong? Everything.
Deliberate attempt by Stephen Miller to incite violence to invoke Insurrection Act and declare martial law.
www.washingtonpost.com/dc-md-va/202...
Deliberate attempt by Stephen Miller to incite violence to invoke Insurrection Act and declare martial law.
www.washingtonpost.com/dc-md-va/202...
National Guard now carrying weapons in D.C.
Guard members will carry their service-issued weapons, which may include pistols or rifles, and “detentions may occur leading to arrests,” a spokesperson said.
www.washingtonpost.com
August 25, 2025 at 1:29 AM
What can go wrong? Everything.
Deliberate attempt by Stephen Miller to incite violence to invoke Insurrection Act and declare martial law.
www.washingtonpost.com/dc-md-va/202...
Deliberate attempt by Stephen Miller to incite violence to invoke Insurrection Act and declare martial law.
www.washingtonpost.com/dc-md-va/202...
Reposted by Frederic Jacobs
Tom Lehrer wasn't just a satirist or a musician.
He as a comedian who could quietly tell a joke and wait more than SIXTY YEARS for the payoff.
That's dedication to craft.
We lost an icon.
He as a comedian who could quietly tell a joke and wait more than SIXTY YEARS for the payoff.
That's dedication to craft.
We lost an icon.
July 27, 2025 at 9:01 PM
Tom Lehrer wasn't just a satirist or a musician.
He as a comedian who could quietly tell a joke and wait more than SIXTY YEARS for the payoff.
That's dedication to craft.
We lost an icon.
He as a comedian who could quietly tell a joke and wait more than SIXTY YEARS for the payoff.
That's dedication to craft.
We lost an icon.
Reposted by Frederic Jacobs
In November of 2016, nearly 60 years after the paper was published internally, I had discovered the joke.
A few years later, I filed to have the paper declassified, and the NSA eventually agreed, and even put it up on their webpage:
media.defense.gov/2021/Jul/14/...
A few years later, I filed to have the paper declassified, and the NSA eventually agreed, and even put it up on their webpage:
media.defense.gov/2021/Jul/14/...
media.defense.gov
July 27, 2025 at 9:01 PM
In November of 2016, nearly 60 years after the paper was published internally, I had discovered the joke.
A few years later, I filed to have the paper declassified, and the NSA eventually agreed, and even put it up on their webpage:
media.defense.gov/2021/Jul/14/...
A few years later, I filed to have the paper declassified, and the NSA eventually agreed, and even put it up on their webpage:
media.defense.gov/2021/Jul/14/...
Reposted by Frederic Jacobs
With Tom Lehrer's passing, I suppose this is a moment to share the story of the prank he played on the National Security Agency, and how it went undiscovered for nearly 60 years.
July 27, 2025 at 9:01 PM
With Tom Lehrer's passing, I suppose this is a moment to share the story of the prank he played on the National Security Agency, and how it went undiscovered for nearly 60 years.
Reposted by Frederic Jacobs
We learned the Trump admin is moving to slash regs on launch companies — like Elon Musk’s SpaceX — that aim to protect people and the enviro.
The changes come despite explosions that sent debris raining on the Caribbean and Gulf.
www.propublica.org/article/trum...
w/ @tophersanders.bsky.social
The changes come despite explosions that sent debris raining on the Caribbean and Gulf.
www.propublica.org/article/trum...
w/ @tophersanders.bsky.social
Trump Administration Looking to Slash Environmental Protection Rules for Rocket Launches
A draft executive order viewed by ProPublica directs the secretary of transportation to “use all available authorities to eliminate or expedite” environmental reviews for launch licenses — a change El...
www.propublica.org
July 22, 2025 at 2:57 PM
We learned the Trump admin is moving to slash regs on launch companies — like Elon Musk’s SpaceX — that aim to protect people and the enviro.
The changes come despite explosions that sent debris raining on the Caribbean and Gulf.
www.propublica.org/article/trum...
w/ @tophersanders.bsky.social
The changes come despite explosions that sent debris raining on the Caribbean and Gulf.
www.propublica.org/article/trum...
w/ @tophersanders.bsky.social
Reposted by Frederic Jacobs
The Tesla diner is unfortunately in my neighborhood so I took a little peek to see boxes of milk and frozen foods out in the heat. Good luck to everyone’s stomachs.
July 25, 2025 at 4:15 PM
The Tesla diner is unfortunately in my neighborhood so I took a little peek to see boxes of milk and frozen foods out in the heat. Good luck to everyone’s stomachs.