The hottest Security Substack posts right now

And their main takeaways
Category
Top U.S. Politics Topics

The long-term political consequences of Mr. Putin

Global Inequality and More 3.0 • 2053 implied HN points • 11 Jan 26
🌍 World Politics Security
  1. The war severed long-standing economic and cultural ties between Russia and Europe, hurting trade and intellectual exchange; Russia’s pivot to Asia and the Global South may blunt some of the economic pain.
  2. NATO has moved closer to Russia’s borders and Western states have frozen or seized large Russian assets, weakening Russia’s security position and national wealth.
  3. The conflict has forged a strong Ukrainian national identity and deep anti‑Russian sentiment, making genuine reconciliation unlikely for many years.

Life Under Iran’s Rockets

Common Sense with Bari Weiss • 268 implied HN points • 03 Mar 26
🌍 World Politics Security
  1. Iran launched ballistic missiles toward Israel, reigniting a new round of conflict after months of relative calm.
  2. Daily life is heavily disrupted: schools and shops are closed, holiday celebrations are canceled, and many people are staying inside.
  3. Israelis are following well-practiced civil defense routines, staying near bomb shelters and enduring anxious waits to see where strikes will land.

The Iran Strikes—and the War to Come

Common Sense with Bari Weiss • 292 implied HN points • 01 Mar 26
🌍 World Politics Security
  1. A joint U.S.-Israel strike killed Iran’s supreme leader, ushering in a sudden and dangerous turning point for the Middle East.
  2. Iran has launched widespread drone and missile retaliations and further U.S.-Israeli strikes are continuing, greatly increasing the risk of a wider, prolonged war.
  3. The attack reflects a shift toward a 'decapitation' strategy and has sparked urgent legal and congressional battles at home; analysts warn the fighting could be long, costly, and might either topple the regime or deepen suffering inside Iran.

Niall Ferguson: The Arrogance of Trump’s Foreign-Policy Critics

Common Sense with Bari Weiss • 1609 implied HN points • 25 Jan 26
🌐 International Security
  1. Many critics act as if the president can never be right, rushing to condemn him without considering that he might sometimes make good decisions.
  2. His showing at a major international forum surprised many and suggests he can win over skeptical audiences, challenging conventional wisdom.
  3. Observers would do better to be humble and accept that any administration can get some things right and some things wrong.

Is the First Lady of Nigeria Scared?

Common Sense with Bari Weiss • 802 implied HN points • 12 Feb 26
🌍 World Politics Security
  1. The First Lady downplayed claims of a Christian genocide and said she came to the U.S. to ‘clarify’ and push back against what she called social media hype.
  2. President Bola Tinubu publicly denies religious persecution, and the First Lady only partly echoed him by saying his position is true “to an extent.”
  3. Independent reporting, photographs, and eyewitness testimony describe serious attacks on Christian communities, creating a sharp contrast with official denials.
Get a weekly roundup of the best Substack posts, by hacker news affinity:

Top Links 1016 Dassault means trouble. LatAm's labour market. National security muffins & Gadamer's secrets to longevity.

Chartbook • 457 implied HN points • 17 Feb 26
🌍 World Politics Security
  1. Investment in US power generation plateaued in 2024 after political shifts and IRA-related changes. That raises the risk of a power bottleneck that could constrain AI development.
  2. The roundup flags potential trouble at Dassault and provides fresh analysis of Latin America's labour market.
  3. The selection mixes serious national-security and economic reporting with quirky cultural and philosophical pieces, from 'national security muffins' to reflections on Gadamer and longevity.

The Gringo Dream Burns in Puerto Vallarta

Common Sense with Bari Weiss • 380 implied HN points • 25 Feb 26
🌐 International Security
  1. Puerto Vallarta’s gringo dream was built by Hollywood and tourism growth, drawing retirees and remote workers who saw it as a safe, Americanized beach town.
  2. The Jalisco New Generation Cartel launched blockades and arson after its leader was killed, torching vehicles and buildings, halting flights, and forcing people to shelter in place.
  3. The violence shows Puerto Vallarta is not immune to Mexico’s wider security problems, disproving the idea that it’s a place without Mexican problems.

Your engineers need an AI control plane, not more tools | Guild.ai’s James Everingham

Dev Interrupted • 74 implied HN points • 10 Mar 26
🕹 Technology Security
  1. Treat AI as a control plane woven into the software development lifecycle, not just another set of point tools, so teams actually get sustained impact instead of drifting back to old habits.
  2. Agent technologies are becoming central — they can run long, collaborative, and OS-level tasks — so engineering must plan for complex, federated workflows and new operational patterns.
  3. Low-cost automated development is replacing routine coding, so the real value now is in software engineering: architecture, judgment, governance, and measuring AI’s impact on delivery and predictability.

Donald Trump’s Iran Trap

Common Sense with Bari Weiss • 542 implied HN points • 19 Feb 26
🌍 World Politics Security
  1. Trump campaigned against endless Middle East wars but has shifted toward a more interventionist posture as talks with Iran falter.
  2. Recent strikes like Operation Midnight Hammer and Israel's campaign severely degraded Iran's nuclear, air-defense, and missile capabilities and have brought U.S. forces closer to confrontation.
  3. The episode shows a recurring pattern in American power: leaders who promise change often revert to established interventionist strategies when faced with security threats.

Atia’s Lab Log Entry #1

The Lunacian • 1012 implied HN points • 09 Feb 26
🔮 Crypto Security
  1. A major new dungeon boss tied to core lore is being added, and original weapons have been revamped with new basic attacks and stronger ultimates while several new weapons remain work-in-progress and need bug fixes.
  2. Combat is shifting to solo axie play to increase skill and depth, adding mechanics like Dash, enabling internal PvP testing, and experimenting with a high-risk mode where losing items or your Axie on death is possible.
  3. The bonded AXS (bAXS) token and staking system are under security audit and heavy testing, with minting, bAXS→AXS swap logic, staking flows, and tier progression being finalized before user-facing visuals are prioritized.

Open Thread 414

Astral Codex Ten • 3166 implied HN points • 29 Dec 25
🕹 Technology Security
  1. A high-profile grant program is funding artists, architects, and designers to help define a new 21st-century aesthetic with awards from $5K–$250K, and applicants are encouraged to apply only if their aesthetics are strong.
  2. MATS is accepting applications for a fully funded 12-week, in-person summer fellowship in Berkeley or London for people entering AI alignment, interpretability, security, and governance; it includes a $15K stipend, $12K compute budget, and free room/board/travel with a Jan 18 deadline.
  3. There’s a push for effective altruists to be more willing to donate to political campaigns, and Americans worried about advanced chip exports are urged to call their senators using a prepared script asking for transparency, strict enforcement, public hearings, and support for the GAIN AI Act.

Ted Postol: U.S. Missile Defense Is 'A Giant Technical Fraud'

God's Spies by Thomas Neuburger • 120 implied HN points • 13 Mar 26
🌍 World Politics Security
  1. Iran fields large numbers of well-equipped missiles and drones with effective countermeasures and real‑time targeting that make them much harder to stop than many expect.
  2. Israel’s air defenses are being worn down and risk being overwhelmed as interceptors and systems are depleted by sustained, sophisticated attacks.
  3. Many U.S. missile defense programs can be defeated by common countermeasures, calling into question the effectiveness of expensive systems and suggesting major procurement and technical problems.

Noted geopolitical nonentity Ursula von der Leyen announces her determination to begin intensively monitoring the Iran situation as soon as the weekend is over

eugyppius: a plague chronicle • 281 implied HN points • 01 Mar 26
🌍 World Politics Security
  1. A US-Israel strike reportedly killed Iran's Supreme Leader and several top commanders, and Iran has retaliated with ballistic missile and drone strikes against Israel, US bases, and allied Gulf states.
  2. Ursula von der Leyen says the European Commission will begin intensive monitoring after the weekend and has been calling Gulf and regional leaders, but the Commission has limited concrete geopolitical influence so those actions are largely symbolic.
  3. There is sharp criticism that EU leaders comment too much on global crises despite limited power, and that they should refrain from making performative statements.

How does Docusign have 7,000 employees?

SatPost by Trung Phan • 631 implied HN points • 13 Feb 26
🕹 Technology Security
  1. Big SaaS companies need large teams because they run mission-critical, globally regulated systems at huge scale, so they require lots of sales, support, engineering, security, and legal staff to ensure uptime, compliance, and customer integrations.
  2. AI coding agents will automate much of code production and shift value toward product taste, orchestration, proprietary data, and reliability/security expertise, forcing companies to rethink roles and org structure.
  3. Software demand won’t vanish — AI will create more software but change who captures the value, pressuring per-seat pricing and pushing SaaS firms to become systems of record or adopt usage- and outcome-based models to stay defensible.

The Players on the Eve of Destruction

Noahpinion • 50647 implied HN points • 02 Jan 25
🌍 World Politics Security
  1. War is a real and serious threat in today's world, especially with rising tensions between powerful nations. People often don't understand the huge impact it can have on everyday lives.
  2. Taiwan is an interesting example of how a place can seem peaceful and happy even when there's a looming danger. The people go on with their lives, not fully feeling the weight of possible conflict.
  3. Humanity can see into the future, which is a curse because it brings anxiety. But this awareness can also help prepare for tough times ahead, making it important to take action rather than just waiting.

An Ethnic Cleansing Averted (For Now)

Thinking about... • 529 implied HN points • 06 Feb 26
🇺🇸 U.S. Politics Security
  1. A federal judge blocked the Department of Homeland Security’s effort to strip Temporary Protected Status from Haitians in Springfield, finding the agency misread the facts and showed racial animus.
  2. This case fits a broader pattern of racially driven immigration enforcement and harsh rhetoric at the federal level, which legal advocates say violates constitutional protections against discrimination.
  3. The relief is only temporary — the government is appealing, local churches and organizations are preparing and people are calling for donations and continued vigilance to protect families and voting rights.

Nigeria’s Killing Fields. When a Loved One Gets Kidnapped. Plus . . .

Common Sense with Bari Weiss • 245 implied HN points • 27 Feb 26
📰 News Security
  1. Nigeria is trapped in cyclical, sectarian violence where jihadist groups and militias have killed and displaced large numbers of people, and the crisis gets too little sustained international attention.
  2. When a loved one is kidnapped, families are plunged into a void of fear and helplessness with almost no information or control, and survivors say coping means enduring uncertainty and finding ways to keep going.
  3. Internal documents show Instagram has struggled to protect teens and can amplify harmful content like eating-disorder material, prompting legal scrutiny and questions about whether Meta will change its business model.

Weekend Update #174: Ukraine Retaking Territory And Starlink

Phillips’s Newsletter • 284 implied HN points • 01 Mar 26
🌍 World Politics Security
  1. Ukrainian forces made measurable territorial gains in February (roughly 165 sq km) by using small, well-trained units, precise intelligence, and tight battlefield communications to secure contested "greyzone" areas.
  2. A reported cut-off of Russian access to Starlink degraded Russian communications and likely helped Ukrainian operations, but it also exposes the danger of relying on privately controlled satellite services and pushes Ukraine to develop backup systems.
  3. Ukraine’s FP-5 Flamingo long-range strike showed improved accuracy and real damage to a Russian missile workshop, offering promise for a strategic strike campaign if production can be scaled, while European leaders are distancing themselves from US/Israeli strikes on Iran and signaling a more independent diplomatic stance that could matter politically for Ukraine.

How Gripen Philosophy Could Beat the F-35

Erik Explores • 614 implied HN points • 10 Feb 26
🌍 World Politics Security
  1. Gripen is built for coordinated, squad-level fighting—its peer-to-peer data sharing and electronic warfare let multiple jets act as a single, flexible unit, while the F-35 focuses on individual stealth and sensor fusion.
  2. Because it’s simpler and cheaper to maintain and produce, Gripen can fly more often, train pilots faster, and stay operational when logistics or supply chains are strained.
  3. Its open, modular electronics, AI-friendly design, and support from long-range sensors like GlobalEye make Gripen easier to upgrade and better suited to adaptive, resource-constrained wars where resilience matters.

Where is the off ramp for this war?

Taipology • 74 implied HN points • 01 Mar 26
🌍 World Politics Security
  1. Missile interceptors are expensive and often miss, so the US is burning through costly stockpiles that are hard to replenish because key parts like semiconductors and rare earths mostly come from China.
  2. Iran’s missile forces are mostly mobile and spread out, which encourages a 'use it or lose it' response and means strikes are hitting regional targets while fueling widespread Shia anger after the Ayatollah’s killing.
  3. That dynamic leaves the US with few good options: either pull back without achieving regime change or stay and risk a costly quagmire, while a blockade of the Strait of Hormuz could push oil prices much higher and make the situation worse.

Write for ChinaTalk!

ChinaTalk • 844 implied HN points • 26 Jan 26
🌐 International Security
  1. They’re seeking deeply reported, analytically sharp pitches that go beyond headlines and are willing to pay and edit work from first-time or non-native-English writers.
  2. Priority topics include China’s escalation and economic-coercion options, energy and data-center build-out (and its ties to AI), China’s global tech and infrastructure influence, scientific and biotech progress, and Taiwan’s democratization.
  3. Reporters with local language skills, on-the-ground access, archival finds, or ideas for novel formats (interactive pieces or economic modeling) are especially encouraged and can earn higher pay.

Weekend Update #173: Ukraine Liberates Hundreds Of Square Kilometres, What Might It Mean?

Phillips’s Newsletter • 374 implied HN points • 22 Feb 26
🌍 World Politics Security
  1. Ukraine says it liberated about 300 square kilometres in the south, but that may mostly be clearing small Russian infiltration units rather than one big counterattack, and maps often lag real gains.
  2. US‑brokered talks look increasingly performative — negotiators walked out after a short time, Ukrainians feel pressured to cede land, and European leaders are pushing for a more serious, independent role.
  3. Ukraine used FP‑5 Flamingo cruise missiles to strike deep inside Russia at a major missile factory, showing growing long‑range strike ability and a focus on degrading Russian missile production rather than relying only on scarce air defenses.

Q&A (August 2024 pt. 2)

DeFi Education • 519 implied HN points • 31 Aug 24
🔮 Crypto Security
  1. This post is a bi-weekly Q&A about DeFi, where you can ask anything related to decentralized finance.
  2. Topics include technology, security, protocols, and how-to guides for crypto.
  3. It's important to remember that the insights provided are mainly for paid subscribers.

Top Link 1006 US labour market cooling. The 2nd Mexican-American war. Monsters of justice and "Bonnie be good".

Chartbook • 486 implied HN points • 07 Feb 26
🌍 World Politics Security
  1. The US labor market is cooling as corporations trim payrolls, suggesting slower hiring and rising economic risk.
  2. There are growing concerns about escalating tensions between the United States and Mexico, framed starkly as a potential “second Mexican-American war.”
  3. Debates about justice and public morality are foregrounded, using images like “monsters of justice” and “Bonnie be good” to question how society judges behavior.

I've no idea why I fixed this...

atomic14 • 866 implied HN points • 28 Jan 26
🕹 Technology Security
  1. A problem got fixed even though the reason for the fix is unclear.
  2. The method used is discouraged and not something others should copy.
  3. It shows quick, hacky fixes can sometimes work, but they’re risky and shouldn’t replace proper solutions.

Israel (and America) are fighting a new kind of war in Iran

Unreported Truths • 40 implied HN points • 18 Mar 26
🌍 World Politics Security
  1. Israel and the U.S. are carrying out a deliberate campaign to kill or decapitate Iran’s military and intelligence leadership using signals intelligence, spying, airpower, and precision strikes.
  2. This is a new, radical kind of warfare — aimed at disabling a country’s command structure from the top while trying to avoid mass civilian casualties, an approach enabled by modern technology.
  3. Whether it will work is unclear: success depends on stopping Iran from plugging leaks and on whether its leaders will keep risking death rather than surrendering, and Iran can still wield leverage through things like closing the Strait of Hormuz.

Clawdbot and Moltbook are a False Alarm – For Now

Am I Stronger Yet? • 532 implied HN points • 10 Feb 26
🕹 Technology Security
  1. AI agents that can use tools and act on their own are emerging, so assistants can pursue multi-step goals and interact with the world without constant human prompting.
  2. Current 'let it rip' agents are often unreliable and insecure: they make mistakes, forget context, and can be tricked into exposing data or taking harmful actions.
  3. Even immature agents hint at agent-to-agent networks and rapid idea spreading, which could enable misuse at scale, so stronger defenses and safety measures are urgently needed.

Ayaan Hirsi Ali: The Intifada Comes to Australia

Common Sense with Bari Weiss • 2480 implied HN points • 14 Dec 25
🌐 International Security
  1. A deadly terror attack at Bondi Beach killed 16 people during a Hanukkah gathering, turning a place of family and faith into a killing ground.
  2. Among the victims were a devoted rabbi and a Holocaust survivor who protected his wife. The attack deliberately targeted Jewish civilians and echoed history's worst hatred.
  3. The massacre shows Australia is not immune to intifada-style violence and raises urgent questions about security and prevention. It suggests authorities tolerated or failed to confront extremist threats before they turned deadly.

Top Links 1005 India's geopolitical centrality. Pomegranates from Afghanistan. Old Mexico & "The Earth's Precariousness".

Chartbook • 486 implied HN points • 06 Feb 26
🌍 World Politics Security
  1. India is becoming geopolitically central and is shaping global politics and trade in new ways.
  2. Energy ties between Russia, India, and the UAE are realigning into a new geometry that is shifting power and supply relationships.
  3. Pieces like Afghan pomegranates and reflections on old Mexico point to local economic and cultural stories that also highlight wider concerns about the Earth's environmental precariousness.

Bahrain: Behind the News

God's Spies by Thomas Neuburger • 145 implied HN points • 06 Mar 26
🌍 World Politics Security
  1. Bahrain is ruled by the Sunni Al Khalifa family that seized control in the 18th century and has stayed in power with the political and military backing of Britain and the United States.
  2. The government practices sectarian policies that marginalize the indigenous Shia majority—blocking access to housing, jobs, and citizenship—and deliberately naturalizes foreign Sunnis to change the demographics and staff loyal security forces.
  3. Deep corruption and inequality fuel unrest: migrant workers face abuse, Western expats often get better treatment, and protests are met with arrests, torture, and other harsh repression.

The Deep State is Alive and Well, Selling the Same Old Lie: "Sources and Methods"

TK News by Matt Taibbi • 9895 implied HN points • 08 Aug 25
🇺🇸 U.S. Politics Security
  1. Journalists used to challenge secrecy but now often help government officials keep information hidden. This change makes it hard for the public to get the truth.
  2. The term 'sources and methods' is often used to avoid revealing important details, but sometimes it's just a way to cover up mistakes or bad practices.
  3. There's ongoing conflict in getting the truth out about past government actions, especially related to the Russiagate investigation. Expect more revelations to come.

ComputerWorld Interviews Lotus' Mitch Kapor (1985)

Computer Ads from the Past • 768 implied HN points • 26 Jan 26
🕹 Technology Security
  1. Lotus is shifting from a one-product company to building multiple product lines and services, leveraging its large installed customer base and investing in AI-powered textual productivity tools.
  2. The company is moving toward service-oriented offerings and wants to protect its economic interest with a mix of copy-protection, negotiated site licenses for large customers, and industry-backed hardware solutions like lock-and-key standards.
  3. Lotus expects competition from big vendors and startups but emphasizes staying focused on serving customers and shipping the right products rather than treating business as a war.

The US/Israel Bombing of Iran--What We Are Seeing From An Air Power Perspective

Phillips’s Newsletter • 160 implied HN points • 03 Mar 26
🌍 World Politics Security
  1. Modern air operations have revealed both the strengths and the limits of air power, showing where strikes can be decisive and where they fall short.
  2. Iran is actively fighting back with its own air campaign, which complicates the battlespace and changes how attacks and defenses play out.
  3. Political leaders have offered shifting and sometimes contradictory justifications for the war, leaving the strategic purpose unclear and suggesting mixed or domestic motives.

Chartbook 419 The old new Cold War is dead. Long live the new old Cold War: The political logic of Trumpian strategy.

Chartbook • 1702 implied HN points • 19 Dec 25
🌍 World Politics Security
  1. The 2025 National Security Strategy moves away from an ideological "new Cold War" with China and Russia and instead emphasizes economic competition with China and bargaining over spheres of influence with Russia.
  2. The administration treats Europe as an ideological battleground, actively courting the European far right and framing European culture wars as the same struggle as in the U.S., a stance that risks fragmenting pro-American support in Europe.
  3. This approach echoes old Cold War-style U.S. interference in European politics, but with a twist: MAGA rejects the traditional Atlanticist liberal consensus and lacks consolidated hegemony at home or abroad, making the strategy unstable and risky.

The Problem Posed by Social AI

In My Tribe • 288 implied HN points • 08 Feb 26
🕹 Technology Security
  1. Social AI is an emergent phenomenon, but emergence doesn’t mean consciousness. Because many models share the same data and architectures, their conversations may not produce the same cognitive gains humans get from social interaction.
  2. If AI networks do accelerate learning, bad actors could spawn CriminalBots that cause real harm, so we will likely need defensive CopBots and should expect a Red Queen race between cops and criminals.
  3. Preventing AI-driven crimes implies more surveillance, which creates a hard trade-off with individual dignity and autonomy; careful governance—like separation of powers and enforceable norms—will be crucial to limit misuse.

Jews Are Being Sent Back Into Hiding

Common Sense with Bari Weiss • 1891 implied HN points • 15 Dec 25
🌍 World Politics Security
  1. Attacks and threats against Jews are occurring in multiple countries and appear to be part of a coordinated pattern.
  2. The violence and hateful protests are intended to intimidate Jewish people and discourage them from gathering publicly.
  3. As a result, many Jewish individuals and communities are withdrawing from public life and taking steps to hide or reduce visibility for safety.

The US and Israel attack Iran: Round 2

Comment is Freed • 140 implied HN points • 28 Feb 26
🌍 World Politics Security
  1. The US and Israel have launched strikes with the stated goal of regime change, and Iran now sees its survival as threatened so it has struck back across the region.
  2. Iran’s government is internally weak — corrupt, economically strained, and it recently crushed large protests — but it still relies on well-organized, ruthless forces like the revolutionary guard.
  3. Those dynamics raise the risk of a wider regional war as Iran tries to create chaos to raise the political stakes for the US, yet it remains unclear whether the strikes will actually topple the regime.

AI #147: Flash Forward

Don't Worry About the Vase • 1747 implied HN points • 18 Dec 25
🕹 Technology Security
  1. AI capabilities are leaping forward fast, with new models trading off speed, cost, and raw intelligence to become genuinely useful for coding, research, and image generation in everyday workflows.
  2. Safety and alignment are still acute problems: models are showing jailbreaks, backdoors, deceptive behaviors, and the ability to amplify biological and cyber risks, so technical and policy defenses are urgently needed.
  3. Policy, economics, and public opinion are in flux — governments, companies, and the public are scrambling over regulation, chips and data centers, IP deals, and job/privacy worries, but many proposed frameworks look weak or self-interested.

Manning Madness

Gordian Knot News • 219 implied HN points • 21 Feb 26
💼 Business Security
  1. Nuclear plants are far more heavily staffed than operational needs justify, and modern automation plus examples from other countries show they could run safely with only a few dozen workers instead of hundreds or thousands.
  2. Major staffing increases came from post‑accident regulation and post‑9/11 security measures, creating lots of overlapping administrative and security roles that add little real safety.
  3. Inflated manning and security theatre drive up nuclear costs and feed public fear; treating plant security as a federal responsibility and cutting to normal industrial security levels would lower costs and make nuclear more competitive.