Frederic Jacobs
@fredericjacobs.bsky.social
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 (@fj@mastodon.social)
1.88K Posts, 2.39K Following, 5.45K Followers · Cryptographic & Security Engineering
Previously: Lead iOS Developer @signalapp@mastodon.world
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
Our generation is going to realize Monnet's dream:
United States of Europe, now! 🇪🇺
United States of Europe, now! 🇪🇺
January 9, 2026 at 1:07 PM
Our generation is going to realize Monnet's dream:
United States of Europe, now! 🇪🇺
United States of Europe, now! 🇪🇺
Reposted by Frederic Jacobs
Aller-retour à #Caracas - © Chappatte dans Le Temps, Genève 👉 chappatte.com/fr/images/al... #Venezuela #Trump #Maduro
January 7, 2026 at 9:54 AM
Aller-retour à #Caracas - © Chappatte dans Le Temps, Genève 👉 chappatte.com/fr/images/al... #Venezuela #Trump #Maduro
Reposted by Frederic Jacobs
Can Europe Ever Trust the United States Again?
In Trump's second term, the transatlantic relationship that shaped postwar Europe appears broken.
@nathalietocci.bsky.social & @jantechau.bsky.social discuss whether it is time for the EU to chart its own path 👇
carnegieendowment.org/posts/2026/0...
In Trump's second term, the transatlantic relationship that shaped postwar Europe appears broken.
@nathalietocci.bsky.social & @jantechau.bsky.social discuss whether it is time for the EU to chart its own path 👇
carnegieendowment.org/posts/2026/0...
Can Europe Ever Trust the United States Again?
In Donald Trump’s second term in office, the transatlantic relationship that helped define the postwar European project and global order appears broken. Is it time for Brussels to chart its own path?
carnegieendowment.org
January 7, 2026 at 2:12 PM
Can Europe Ever Trust the United States Again?
In Trump's second term, the transatlantic relationship that shaped postwar Europe appears broken.
@nathalietocci.bsky.social & @jantechau.bsky.social discuss whether it is time for the EU to chart its own path 👇
carnegieendowment.org/posts/2026/0...
In Trump's second term, the transatlantic relationship that shaped postwar Europe appears broken.
@nathalietocci.bsky.social & @jantechau.bsky.social discuss whether it is time for the EU to chart its own path 👇
carnegieendowment.org/posts/2026/0...
Reposted by Frederic Jacobs
The White House doesn’t care about environment, health or suffer of people. Peace, justice, cooperation or prosperity are not among its priorities.
Not even the great legacy of US to global governance.
And they spell it out.
HTTPS://www.nytimes.com/2026/01/07/climate/trump-un-climate-treaty.html
Not even the great legacy of US to global governance.
And they spell it out.
HTTPS://www.nytimes.com/2026/01/07/climate/trump-un-climate-treaty.html
Trump Pulls Out of Global Climate Treaty
www.nytimes.com
January 8, 2026 at 6:53 AM
The White House doesn’t care about environment, health or suffer of people. Peace, justice, cooperation or prosperity are not among its priorities.
Not even the great legacy of US to global governance.
And they spell it out.
HTTPS://www.nytimes.com/2026/01/07/climate/trump-un-climate-treaty.html
Not even the great legacy of US to global governance.
And they spell it out.
HTTPS://www.nytimes.com/2026/01/07/climate/trump-un-climate-treaty.html
Reposted by Frederic Jacobs
International rules are only as strong as the democratic states supporting them.
In the wake of the U.S. military operation in Venezuela, Europeans have a vested interest in upholding international law but shy away from doing so, says @rosabalfour.bsky.social.
carnegieendowment.org/europe/strat...
In the wake of the U.S. military operation in Venezuela, Europeans have a vested interest in upholding international law but shy away from doing so, says @rosabalfour.bsky.social.
carnegieendowment.org/europe/strat...
The Cost of Europe’s Weak Venezuela Response
International rules are only as strong as the democratic states supporting them. In the wake of the U.S. military operation in Venezuela, Europeans have a vested interest in making a compelling case for international law but shy away from doing so.
carnegieendowment.org
January 6, 2026 at 1:45 PM
International rules are only as strong as the democratic states supporting them.
In the wake of the U.S. military operation in Venezuela, Europeans have a vested interest in upholding international law but shy away from doing so, says @rosabalfour.bsky.social.
carnegieendowment.org/europe/strat...
In the wake of the U.S. military operation in Venezuela, Europeans have a vested interest in upholding international law but shy away from doing so, says @rosabalfour.bsky.social.
carnegieendowment.org/europe/strat...
Reposted by Frederic Jacobs
One example of how Grok is being used to target women. Swedish Deputy Prime Minister Ebba Busch being sexualised, degraded, and humiliated step-by-step by Grok. All the images accurately reflect the prompts provided.
January 5, 2026 at 5:37 PM
One example of how Grok is being used to target women. Swedish Deputy Prime Minister Ebba Busch being sexualised, degraded, and humiliated step-by-step by Grok. All the images accurately reflect the prompts provided.
Reposted by Frederic Jacobs
A functional country would shut Grok down permanently. Like, immediately. Right now. Last week. Whatever. Just flip the switch. Obviously.
January 4, 2026 at 10:52 PM
A functional country would shut Grok down permanently. Like, immediately. Right now. Last week. Whatever. Just flip the switch. Obviously.
🧵 Short Authentication Strings (SAS) are dead in the Age of Generative AI
mastodon.social/@fj/11584171...
mastodon.social/@fj/11584171...
Frédéric Jacobs (@fj@mastodon.social)
Attached: 1 image
🧵 Short Authentication Strings (SAS) in the Age of Generative AI
When ZRTP was released by Phil Zimmermann and team in the mid-2000s, one of it's main innovations was to use SAS in...
mastodon.social
January 5, 2026 at 9:44 AM
🧵 Short Authentication Strings (SAS) are dead in the Age of Generative AI
mastodon.social/@fj/11584171...
mastodon.social/@fj/11584171...
Reposted by Frederic Jacobs
These freaks want territorial expansion and they know Trump will do everything he can to deliver.
This isn’t just a tweet from some random asshole either. This is Stephen Miller’s wife. Miller was in the room with Trump during the kidnapping of Maduro.
This isn’t just a tweet from some random asshole either. This is Stephen Miller’s wife. Miller was in the room with Trump during the kidnapping of Maduro.
January 3, 2026 at 9:22 PM
These freaks want territorial expansion and they know Trump will do everything he can to deliver.
This isn’t just a tweet from some random asshole either. This is Stephen Miller’s wife. Miller was in the room with Trump during the kidnapping of Maduro.
This isn’t just a tweet from some random asshole either. This is Stephen Miller’s wife. Miller was in the room with Trump during the kidnapping of Maduro.
Reposted by Frederic Jacobs
decided to go smell the rotten milk in the back of the Washington Post fridge... I don't even know what to say about this
January 3, 2026 at 4:26 PM
decided to go smell the rotten milk in the back of the Washington Post fridge... I don't even know what to say about this
Reposted by Frederic Jacobs
And… TRO granted!
A sweet Christmas present for @imranahmed.bsky.social, @counterhate.com--& for their mission of fighting antisemitism & protecting kids online. Also nice for our all-star legal team.
A lump of coal in the stockings of authoritarians & the merchants of disinformation
A sweet Christmas present for @imranahmed.bsky.social, @counterhate.com--& for their mission of fighting antisemitism & protecting kids online. Also nice for our all-star legal team.
A lump of coal in the stockings of authoritarians & the merchants of disinformation
December 25, 2025 at 4:17 PM
And… TRO granted!
A sweet Christmas present for @imranahmed.bsky.social, @counterhate.com--& for their mission of fighting antisemitism & protecting kids online. Also nice for our all-star legal team.
A lump of coal in the stockings of authoritarians & the merchants of disinformation
A sweet Christmas present for @imranahmed.bsky.social, @counterhate.com--& for their mission of fighting antisemitism & protecting kids online. Also nice for our all-star legal team.
A lump of coal in the stockings of authoritarians & the merchants of disinformation
Reposted by Frederic Jacobs
The 🇺🇸 Deputy Secretary of State has today made your choice as a European very clear:
1️⃣Live in a vassal state of either America or Russia
2️⃣Live in a united federal EU
Which do you choose?
www.TheOwnedContinent.eu
1️⃣Live in a vassal state of either America or Russia
2️⃣Live in a united federal EU
Which do you choose?
www.TheOwnedContinent.eu
December 7, 2025 at 9:56 AM
The 🇺🇸 Deputy Secretary of State has today made your choice as a European very clear:
1️⃣Live in a vassal state of either America or Russia
2️⃣Live in a united federal EU
Which do you choose?
www.TheOwnedContinent.eu
1️⃣Live in a vassal state of either America or Russia
2️⃣Live in a united federal EU
Which do you choose?
www.TheOwnedContinent.eu
Reposted by Frederic Jacobs
The headline, the main takeaway from a European viewpoint is this:
The transatlantic relationship as we know it is over. Yes, we kinda knew this. But this is now official US White House policy. Not a sppech, not a statement. The West as it used to be no longer exists.
The transatlantic relationship as we know it is over. Yes, we kinda knew this. But this is now official US White House policy. Not a sppech, not a statement. The West as it used to be no longer exists.
December 5, 2025 at 9:49 AM
The headline, the main takeaway from a European viewpoint is this:
The transatlantic relationship as we know it is over. Yes, we kinda knew this. But this is now official US White House policy. Not a sppech, not a statement. The West as it used to be no longer exists.
The transatlantic relationship as we know it is over. Yes, we kinda knew this. But this is now official US White House policy. Not a sppech, not a statement. The West as it used to be no longer exists.
Reposted by Frederic Jacobs
"A citizens group in Ontario, California is spearheading an effort to make the community aware of incidents involving federal immigration agents.
They're placing signs at the locations that read, 'ICE stole someone here'..."
abc7.com/post/ontario...
They're placing signs at the locations that read, 'ICE stole someone here'..."
abc7.com/post/ontario...
Immigrant rights group placing 'ICE stole someone here' signs in Ontario
A citizens group in Ontario is spearheading an effort to make the community aware of incidents involving ICE agents detaining and arresting undocumented immigrants.
abc7.com
November 16, 2025 at 2:38 AM
"A citizens group in Ontario, California is spearheading an effort to make the community aware of incidents involving federal immigration agents.
They're placing signs at the locations that read, 'ICE stole someone here'..."
abc7.com/post/ontario...
They're placing signs at the locations that read, 'ICE stole someone here'..."
abc7.com/post/ontario...
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