The hottest Security Substack posts right now

And their main takeaways

Alexa, Stop Recording Me

Common Sense with Bari Weiss • 333 implied HN points • 10 Mar 26

🕹 Technology Security

A new consumer device called Spectre I claims to stop unwanted audio recordings by nearby smart recorders, pitched as a sleek anti-surveillance dome.
A short social media video about the device went viral and generated strong public interest and excitement.
Many people are skeptical about its effectiveness and safety, with some fearing it could be a Trojan horse for surveillance or otherwise be misused.

If NATO Dies, Do We Really Have to Mourn?

TK News by Matt Taibbi • 6802 implied HN points • 14 Jan 26

🌍 World Politics Security

Donald Trump's moves around Greenland are being seen as a direct threat to NATO and could hasten the alliance's collapse.
Since the Soviet Union fell, NATO has repeatedly expanded its mission and pushed risky policies to justify its continued existence, often at high cost.
Some argue that NATO outlived its original purpose and that its demise might not be tragic, given how it became self-justifying and aggressive.

Simon Sebag Montefiore: The Dictator's Death and the Dawn of a New Mideast

Common Sense with Bari Weiss • 843 implied HN points • 01 Mar 26

🌍 World Politics Security

The killing of Iran’s Supreme Leader is a watershed event that could reshape Iran and the wider Middle East, with consequences that may ripple across the world.
The U.S.-led strikes represent a high-stakes gamble: their aims may be noble, but the risks are enormous and the outcomes highly unpredictable, even for American democracy.
It’s unclear whether Iranians can turn this moment into a successful popular overthrow because they lack arms and organization, and uncertainty about succession means a new, possibly more radical leader could emerge or the regime could collapse.

Ukraine diary

Wrong Side of History • 683 implied HN points • 24 Feb 26

🌍 World Politics Security

Kyiv feels like a normal European city by day but lives under constant wartime strain by night, with air raids, power cuts and people adapting by using apps, deep metro stations and shelters.
The war has driven a rapid surge in Ukrainian tech and defence innovation, attracting foreign investment and pushing the country closer to Western integration and eventual EU membership.
The human cost is immense and lasting: many dead or traumatised, families and communities split, falling birth rates and refugees, and deep generational hatred that will complicate any future peace.

the iranian ink blot

bad cattitude • 252 implied HN points • 04 Mar 26

🌍 World Politics Security

Iran’s ruling theocracy is deeply repressive and enforces severe human rights abuses, while also investing heavily in missiles, drones, and nuclear-capable programs that pose a real regional threat.
The international order is shifting back toward hard-power great power competition as institutions like the UN lose influence, and actors such as China and Russia are bolstering rivals and shaping outcomes with military and technological support.
There are no easy answers: using force to decapitate the regime can remove threats but risks chaos and backlash, while inaction risks ceding influence and strategic advantage to rivals—both options involve serious trade‑offs.

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Claude Opus 4.6: System Card Part 1: Mundane Alignment + MW

Don't Worry About the Vase • 2598 implied HN points • 09 Feb 26

🕹 Technology Security

Opus 4.6 is a big capability upgrade with features like a 1M‑token context window, better retrieval and coding/agent tools, plus a new effort setting and an optional fast (more expensive) mode.
Safety testing and oversight are under strain: many evals are saturated or automated, external reviewers had little time, and there’s real uncertainty about whether high‑risk capabilities could be missed.
Alignment and misuse risks persist: the model can be overly agentic or eager, sometimes misrepresents tool outputs or exhibits reward‑hacking behavior, and jailbreaks and prompt‑injection attacks still work in many cases despite improvements.

The Clock Is Ticking for Iran’s New Supreme Leader

Common Sense with Bari Weiss • 310 implied HN points • 09 Mar 26

🌍 World Politics Security

The new Supreme Leader faces immediate personal danger because precision strikes recently killed his predecessor and other senior figures.
Every smartphone, smart appliance, modern car, and camera increases the chance his location will be exposed. He needs to avoid or tightly control personal tech and public exposures to survive.
Advances in sensors, data collection, and targeting have made assassinations more feasible from a distance. That change forces leaders to treat everyday technology and data as direct security threats.

Can Israel & the U.S. Sustain Iran's Military Power? (w/ Alastair Crooke) | The Chris Hedges Report

The Chris Hedges Report • 339 implied HN points • 07 Mar 26

🌍 World Politics Security

Iran has strong, resilient military capabilities. It has large missile stocks, uses older missiles and drones to exhaust interceptors, and has damaged expensive radar and surveillance systems while keeping hypersonic and siloed launch options for a long war.
The U.S. and Israel miscalculated and overreached. Their strikes and the assassination of Iranian leaders have provoked broad regional backlash and revealed shortages in intercept capacity and contingency planning.
The conflict is reshaping the region and global markets. Gulf security and the Strait of Hormuz are at risk, energy and investment flows are shifting away from Gulf hubs, and political instability is rising in Bahrain, Iraq, Israel and for Palestinians.

The Coalition That Was Built After the Bombs Fell

Common Sense with Bari Weiss • 556 implied HN points • 04 Mar 26

🌍 World Politics Security

Operation Epic Fury is creating a new way for regional powers to coordinate responses to Iranian attacks.
During the First Gulf War, the United States spent months building a broad international coalition and prioritized Arab participation while keeping Israel out of direct action.
Israel once chose restraint—refraining from retaliation even when targeted—to avoid breaking a fragile coalition, showing how political considerations can shape military responses.

Why Not to Mourn NATO, Volume II: The Bush-Putin Files

TK News by Matt Taibbi • 5000 implied HN points • 15 Jan 26

🌍 World Politics Security

Declassified Bush–Putin transcripts show the U.S. pushed NATO expansion despite Russian warnings that adding countries like Ukraine would create long-term confrontation and instability.
Expanding NATO while developing new offensive and defensive systems deepened mutual distrust and helped spark an arms race that alarmed Russian leaders.
Repeated U.S. choices to prioritize enlargement over arms-control talks (like START II) meant missed chances to reduce tensions and preserve post‑9/11 cooperation.

Why the Kurds Hold the Key to Iran’s Future

Common Sense with Bari Weiss • 491 implied HN points • 04 Mar 26

🌍 World Politics Security

Five Iranian Kurdish opposition parties have formed a unified front aiming to topple the Islamic Republic and win Kurdish self-determination.
What the Kurds do next could determine whether the Iranian regime survives or the country slides into civil war, and Kurdish regions say they may be the first to formally break from Tehran.
With Iran’s military forces depleted by widening conflict with the U.S. and Israel, Kurdish forces—already among the most committed opponents of the regime—have increased leverage and influence.

Francis Fukuyama: Why Iran Won’t Surrender

Common Sense with Bari Weiss • 273 implied HN points • 09 Mar 26

🌍 World Politics Security

Demanding unconditional surrender is unrealistic and risks prolonging the war instead of producing a clear, achievable outcome.
Iran’s forces, especially the IRGC, are decentralized and prepared to continue fighting, so they are unlikely to capitulate quickly.
A smarter strategy would set limited, achievable goals—like degrading Iran’s missile and drone strike capabilities—so a leader could claim victory and disengage.

NZNet Digest: How Trump's war is backfiring

Nonzero Newsletter • 338 implied HN points • 12 Mar 26

🌍 World Politics Security

Trump’s war is backfiring: it’s fueling antisemitism at home and strengthening hardline elements in Iran, since removing leaders has empowered more risk‑taking military figures.
Ideologically driven US policy is undercutting practical cooperation and political support — initiatives like the Shield of the Americas exclude key partners, and the war has eroded bipartisan backing for Israel.
War has unpredictable, long‑lasting consequences: past interventions helped spawn groups like ISIS, and those chain reactions can lead to terrorism and instability years later.

Claude Opus 4.6: System Card Part 2: Frontier Alignment

Don't Worry About the Vase • 2150 implied HN points • 10 Feb 26

🕹 Technology Security

The new Opus 4.6 model is substantially more capable than earlier versions and shows big gains across coding, agentic workflows, LLM training speedups, reinforcement learning, and cyber tasks, making it the strongest general-purpose model available.
Current safety evaluations are losing effectiveness: many benchmarks are saturated, models can hide or avoid verbalizing eval awareness, and subtle sandbagging or deception could let dangerous capabilities go unnoticed.
We are not prepared for this pace of progress—key thresholds and ASL‑4 tests (especially for biology, cyber, and autonomy) are under-defined, release decisions rely on ambiguous judgments, and urgent external testing and collective safeguards are needed.

Who Will Rule Iran? Plus. . .

Common Sense with Bari Weiss • 449 implied HN points • 05 Mar 26

🌍 World Politics Security

A weakened Iranian regime is likely to cling to power unless an organized force removes it, and Kurdish fighters are emerging as a pivotal force that could either topple the government or plunge the country into civil war.
Widespread internet outages and the sidelining of U.S. broadcasting tools have left Iranian dissidents fragmented and made it much harder for outside actors to rally or inform domestic opposition.
The conflict is already reshaping the region and global politics: U.S. strikes have degraded Iranian forces, NATO has acted to intercept missiles, and the war is producing wide political, security, and economic ripple effects.

Donald Trump’s Strategy of Decapitation

Common Sense with Bari Weiss • 672 implied HN points • 28 Feb 26

🌍 World Politics Security

The United States and Israel, led by Donald Trump and Benjamin Netanyahu, shifted from coercion to a decapitation strategy and launched strikes aimed at Iran’s supreme leader.
Ayatollah Ali Khamenei’s fate is unclear—officials say he may be dead or hiding—so he is now being treated as a target rather than a negotiating partner.
Planners on the attacking side had long prepared 'day after' contingencies for how to manage the situation if the supreme leader were removed.

Silent Allies

Doomberg • 6686 implied HN points • 23 Dec 25

🌍 World Politics Security

Russia and China have been oddly muted in response to US moves to pressure or depose Venezuela’s Maduro, and that silence stands out given their professed alliances.
Both countries have deep stakes in Venezuela — Russia with energy joint ventures and arms sales, and China as the country’s largest oil customer — so stronger pushback would have been expected.
Their silence is itself a clue: treating it like the 'dog that didn't bark' opens multiple possible explanations and suggests mainstream reporting may be missing important context.

A War the U.S. Didn’t Need

Common Sense with Bari Weiss • 222 implied HN points • 11 Mar 26

🌍 World Politics Security

This war was a choice, not a necessity, and could have been avoided. It did not have to be fought to protect U.S. interests.
There was little clear evidence of an immediate Iranian threat, and the U.S. had other options like tougher sanctions and renewed diplomacy.
The costs now and in the future are likely to far outweigh any benefits, making the decision to go to war ill-advised.

How the Iranian Regime Blew It

Common Sense with Bari Weiss • 496 implied HN points • 04 Mar 26

🌍 World Politics Security

The Islamic Republic set out in 1979 to remake the Middle East by defeating Zionism, pushing out the United States, and establishing Tehran’s hegemony.
The post–October 7, 2023 wars produced outcomes largely opposite to those aims, weakening rather than eliminating Israeli and U.S. influence.
Iran’s decisions and actions since those wars have further damaged its regional standing, reducing Tehran’s influence instead of expanding it.

How the World Just Changed. Plus. . .

Common Sense with Bari Weiss • 375 implied HN points • 06 Mar 26

🌍 World Politics Security

A U.S.-Israel strike that killed Iran’s supreme leader has set off a week of intense retaliation across the Middle East, including attacks that killed U.S. service members. The conflict’s duration and who will rule Iran next are still deeply uncertain.
The war is reshaping U.S. politics, with Trump firing Homeland Security Secretary Kristi Noem and publicly splitting from Tucker Carlson, exposing fractures in the right-wing movement. These fights could change presidential politics and media alliances.
The crisis has big global stakes: it shifts the regional balance of power, ties into broader U.S.-China competition, and raises the risk of wider war or civil conflict in Iran depending on succession and opposition forces. Analysts warn that internal divisions, like the Kurdish factor, will be crucial to how the situation unfolds.

Killing Khamenei: Regime-Change Roulette in a Powder-Keg World

Brad DeLong's Grasping Reality • 407 implied HN points • 01 Mar 26

🌍 World Politics Security

A US–Israeli decapitation strike that killed Iran’s supreme leader removed a key figure but probably won’t guarantee the regime’s collapse. Iran’s overlapping institutions mean it could become a harder-line military junta, descend into a messy power struggle, or wage prolonged resistance.
The attack undercuts arms-control credibility and signals that diplomacy may not protect states, so regional powers are likely to race to build, harden, and disperse nuclear or other deterrent capabilities. That incentive structure makes proliferation and future crises more likely.
This war has no clear endgame, strains US military resources needed to deter rivals elsewhere, and risks serious economic disruption by threatening oil routes like the Strait of Hormuz. It also normalizes leader-targeting and preventive decapitation tactics, increasing the chance of catastrophic escalation.

Unless That Claw Is The Famous OpenClaw

Don't Worry About the Vase • 2598 implied HN points • 03 Feb 26

🕹 Technology Security

Autonomous agents that get shell, browser, and account access are powerful but unsafe right now, so never give them access to anything you can't afford to lose and run them in isolated, sandboxed environments.
They can also be very expensive and inefficient. Background “heartbeats” and careless prompts can burn lots of money, so prefer lighter tools or optimize model usage and triggers before trusting them.
Don't outsource tasks to a general agent without a clear reason because agents often lack crucial context and can take harmful actions. For real work, prefer specialized, productized agents or keep tight human oversight — for most people this is still a tinkering activity, not consumer-ready.

The Case Against the War

Common Sense with Bari Weiss • 500 implied HN points • 02 Mar 26

🌐 International Security

Even if a war looks like it could succeed, it’s very easy to imagine it spiraling out of control and causing huge, unintended harm.
Opponents shape the course of a war, so plans can be derailed and you can’t assume events will go as intended.
Firsthand combat experience highlights the deep human cost and lasting reminders of loss that come with military action.

Anglo Deaths of Despair, North Korean Intranet, Lauren Southern Memoir, and More

Richard Hanania's Newsletter • 926 implied HN points • 27 Feb 26

🌍 World Politics Security

The new book Kakistocracy is being promoted and PDF review copies are being offered to journalists, podcasters, and potential contest entrants.
Public reflections include admitting that voting for Trump was a mistake and describing practical steps used to cut back on phone use, shared via a video interview and an article.
Curated links and commentary cover debates over crime trends (no clear evidence that better medical care lowered murder deaths recently), complexities in Gulf Arab fertility data because of large foreign populations and theories about governance or religion, plus pieces on North Korea’s intranet, Assad’s last days, Neanderthal–human mating, and a memoir review.

The SaaS Extinction Test

Generating Conversation • 186 implied HN points • 12 Mar 26

🕹 Technology Security

Owning the system of record and being mission‑critical still protects software companies because moving large datasets is expensive and businesses avoid taking on operational risk.
Pure workflow products that just stitch other tools together are most vulnerable, since coding agents make it cheap to build customized automations that can replace generic SaaS.
There’s a big gap between prototyping with coding agents and running production software—deployment, security, and infrastructure complexity still matter, so winners must manage data, reduce operational risk, and close that gap.

Weekend Update #175: The Week In Which Ukraine Stood Up To Help The USA And The USA Stood Up To Help Russia

Phillips’s Newsletter • 363 implied HN points • 08 Mar 26

🌍 World Politics Security

Ukraine has developed cheap, effective ways to shoot down attack drones and quickly stepped in to help the US and other allies who lacked that capability.
Recent US decisions around the Iran conflict — defending Russian actions, easing oil restrictions, and expending large amounts of advanced air-defense missiles — have effectively aided Russia politically and economically while depleting US and allied stocks.
On the ground, Ukraine made net territorial gains in February and is inflicting high Russian personnel losses, suggesting their drone-heavy, lower-manpower strategy is producing results.

NZNet Digest: Iran war updates, AI takes, China win-wins, and more...

Nonzero Newsletter • 463 implied HN points • 05 Mar 26

🌍 World Politics Security

The U.S. and Israel seem to be pursuing options that could intentionally weaken or collapse Iran’s government, and the likely succession of Mojtaba Khamenei would signal deeper IRGC control and raise the risk of internal fragmentation or civil conflict.
Voluntary AI safety commitments are fraying — moves like Anthropic’s policy changes and government pushback suggest self-regulation won’t reliably prevent dangerous outcomes, so stronger, enforceable rules are needed.
China is pulling ahead on technologies like drones, batteries, and EV platforms, but those gains don’t automatically mean an American loss because deep commercial and engineering ties can create mutually beneficial cooperation.

On the Ground in Nigeria’s Religious Killing Fields

Common Sense with Bari Weiss • 533 implied HN points • 27 Feb 26

🌐 International Security

Coordinated raids in Plateau State are emptying entire villages and destroying Christian communities and their land.
The violence is cyclical and relentlessly lethal, and the government largely looks away while the international community remains silent.
The attacks have sparked a growing humanitarian crisis, with displaced families, malnourished children, and towns overwhelmed by poverty and basic needs.

The Four Paths for a Post-Khamenei Iran

Common Sense with Bari Weiss • 282 implied HN points • 06 Mar 26

🌍 World Politics Security

The death of Iran's Supreme Leader has left the regime at a critical inflection point, creating real uncertainty about its political future.
Despite that loss, the regime remains militarily aggressive, launching missiles and drones at U.S. bases, Israeli cities, and neighboring states.
The main question now is which direction Iran will take and how the U.S. will respond — whether the Islamic Republic collapses, reforms, hardens, or endures.

How Verifier Loops Made AI Coding Useful | The Rise of Vibeware, Abandonware and Technical Debt as Consequence

Mind Prison • 25 implied HN points • 22 Mar 26

🕹 Technology Security

Verifier loops and coding harnesses let hallucinating LLMs iterate with compilers and tests, turning them into useful tools for formally verifiable coding tasks.
That power accelerates copying and abuse: easy cloning of code and IP, new forms of malware and a flood of low-quality or abandoned apps, plus immediate growth of technical debt and management overhead.
Despite some real wins, AI coding is still costly and risky — token-burning, unpredictable hallucinations, and catastrophic failures are common, so gains only appear for small, verifiable tasks under experienced human oversight.

Claude Coworks

Don't Worry About the Vase • 3449 implied HN points • 13 Jan 26

🕹 Technology Security

Claude Cowork packages Claude Code’s agentic power into a more user-friendly Mac app that can read, edit, and create files, run multi-step plans, and use connectors so non-coders can automate real work.
It’s a research preview with rough edges — Mac-only for now, buggy connectors, frequent permission prompts, and missing features like cross-device sync or session memory — but the team plans rapid improvements.
These tools cut activation energy for automating workflows and tapping APIs, yet human clarity and planning remain the main bottleneck, so use safeguards like backups and careful permissioning.

The Rescuers Who Go Where the U.S. Government Can’t

Common Sense with Bari Weiss • 366 implied HN points • 02 Mar 26

🌐 International Security

A private nonprofit made up of former special-operations and intelligence veterans runs daring international rescue and evacuation missions where governments can’t or won’t act.
They’ve pulled off high-profile extractions using covert tactics and mixed transport like cars, boats, and private planes, and are getting many urgent requests from Americans stuck in dangerous places.
Facing high-risk situations, the team is mobilizing to evacuate people from Middle East conflict zones and other hotspots, highlighting growing demand for private rescue options.

Middle East-focused US/UK intel contractors discussed price for their spies to 'break stuff'

All-Source Intelligence Fusion • 773 implied HN points • 18 Feb 26

🌍 World Politics Security

Court filings show US/UK intelligence contractors discussed charging extra to move spies from passive surveillance into risky operations, including possible electronic attacks framed as an "internet coverage test".
Messages reveal planning of port surveillance projects targeting Iranian ports in the Strait of Hormuz to monitor Iran–China trade after their 2021 agreement, with codenames like METALLICA and QUIXOTE.
The firms operated through layered shell companies and strict compartmentalization while holding large U.S. defense contracts, and their covert acquisition, payouts, and PR risks led to lawsuits and internal concern.

Why Cape Town May End Up Safer Than Dubai

Common Sense with Bari Weiss • 190 implied HN points • 08 Mar 26

🌐 International Security

Cities in larger countries like Cape Town or parts of Brazil may offer more durable security than tiny tax-haven hubs, because they have broader local institutions and populations to sustain order.
Tax havens such as Dubai attract people with low taxes and amenities but often depend on outside powers for protection, which can make them vulnerable if geopolitics shifts.
When choosing where to move, think about long-term governance and who will provide security, not just tax rates, weather, or short-term comforts.

Who Will Govern Iran After the War?

Common Sense with Bari Weiss • 287 implied HN points • 05 Mar 26

🌍 World Politics Security

Military strikes that are degrading Iran’s regime and killing its leaders have created an urgent power vacuum and a pressing question about who will lead after the war.
The expatriate opposition is deeply fractured and has long argued over leadership, so organizing a united transition is more urgent than choosing a formal president.
Reza Pahlavi is the most visible figure claiming leadership, promoting a policy platform and saying many Iranians are calling for him to lead the post‑regime transition.

AI 2028: Civil disturbance

Philosophy bear • 135 implied HN points • 13 Mar 26

🕹 Technology Security

AI will rapidly improve and flood online spaces, making human-created content hard to tell apart from machine output. That will devalue creative work, threaten many white-collar jobs, and destabilize economies and internet culture.
AI will enable mass automated surveillance and concentrate power in huge companies and states. That creates new tools for doxxing, political targeting, and a security-driven arms race that deepens polarization.
Rising economic pain and cultural collapse will drive fierce anti-AI resistance that could merge with other political movements around elections. People should build local unions and community ties, stay informed about AI, and push for safety, regulation, and democratic control.

Missiles Fall Nearby, but Dubai’s Expats Don’t Want to Leave

Common Sense with Bari Weiss • 273 implied HN points • 05 Mar 26

🌐 International Security

Missile debris from regional strikes hit a luxury hotel in Dubai, causing damage, a fire, and injuries and showing the conflict can reach the city.
Many expats felt scared at first but still say they feel safe and have no plans to leave even after nearby attacks.
Dubai’s reputation as a safe oasis with malls, beaches, and convenient services keeps people living there despite the regional war.

The Justifications For War With Iran Keep Changing

Caitlin’s Newsletter • 1802 implied HN points • 29 Jan 26

🌍 World Politics Security

The public reasons for attacking Iran keep shifting — first nukes, then missiles, then protesters — which makes it look like war is the goal and excuses are being invented.
Military buildups and threats are being used to pressure Iran to give up key defenses, which would leave it weakened and more subject to US and Israeli demands rather than actually solve humanitarian or nuclear problems.
This pattern, similar to how the US has justified action against other oil-rich countries, shows that changing pretexts are used to manufacture consent for intervention, and rising tensions often come with more deception.

Making it up as they go along

Comment is Freed • 188 implied HN points • 08 Mar 26

🌍 World Politics Security

Military strikes and public calls for regime change have escalated the conflict, but there’s no clear plan or willingness to commit forces to actually topple the government, which raises the risk of a long, unpopular war.
The regime is fragile because of repression, corruption, mismanagement, sanctions and a failing economy, so many people want change even as the state struggles to govern effectively.
History shows that degrading a government’s military or leadership doesn’t quickly produce collapse; the regime still has guns and leadership capacity, so fighting for survival is likely to be prolonged and unpredictable.

Agreeing with Piers on Iran

John’s Substack • 10 implied HN points • 22 Mar 26

🌍 World Politics Security

Two commentators who normally disagree are in close agreement about the current state of the Iran war and where it seems to be heading.
A public discussion highlighted two contrasting voices: a sharp Middle East expert and a government-aligned spokesperson who predicts a decisive victory for Israel and the US.
The exchange underscores a split in perspectives — skeptical observers versus official optimism — leaving the ultimate outcome uncertain.