The hottest Cybersecurity Substack posts right now

And their main takeaways
Category
Top Technology Topics

The Future of Secure Telecom

ChinaTalk • 340 implied HN points • 25 Nov 25
🕹 Technology Cybersecurity
  1. Telecom data is really valuable, and bad actors, including government entities, can exploit it easily. This was evident with China's intrusion into major telecoms, which surprised many but shouldn't have.
  2. Cape emphasizes privacy and security by minimizing data collection from users. Unlike traditional telecoms that sell data, Cape aims to keep your information safe and only retain it for short periods.
  3. In conflict zones like Ukraine, commercial mobile networks are crucial for communication. Even in dangerous situations, people choose to use their phones because they provide vital information and support both military and civilian communication.

Trust Networks Are the Antidote to AI Hype

Marginally Compelling • 15 implied HN points • 26 Feb 26
🕹 Technology Cybersecurity
  1. Local AI agents that run on your machine and can access files and services feel magical but are still immature and can cause serious security and control failures.
  2. The AI news wave is overloaded with sensational claims, influencers, and speculative pieces that often mislead people and can even move markets without solid evidence.
  3. The best defense is a network of trusted, experienced people who actually test tools and do the hard work. Rely on them to soberly explain limits and filter the hype.

Palmer Luckey: I Saw the Future of War. Now It’s Up to Us to Prepare For It.

Common Sense with Bari Weiss • 1089 implied HN points • 05 Aug 25
🕹 Technology Cybersecurity
  1. Technology is now the key advantage on the battlefield. Countries need to focus on using innovative tech to win conflicts.
  2. Ukraine has shown that smaller, cheaper tech like drones can have a big impact in war. It's not just about having the biggest weapons.
  3. Taiwan has a chance to be a leader in defense innovation. The new generation must step up to create advanced technology to protect their country.

🚨 This Week in Cybersecurity 🚨

Vigilainte Newsletter • 19 implied HN points • 16 Sep 24
🕹 Technology Cybersecurity
  1. A teenager was arrested for a cyberattack on London's transport system, showing that young people are increasingly involved in serious cybercrimes.
  2. Australia is setting age limits for children on social media to protect them from online dangers like predators and inappropriate content.
  3. Apple dropped its lawsuit against NSO Group, which developed spyware to target individuals like journalists and activists, indicating a shift in its legal approach.

Something Big Is Happening in Cybersecurity

The Security Industry • 35 implied HN points • 17 Feb 26
🕹 Technology Cybersecurity
  1. AI development is accelerating fast, with new models that feel like a qualitative leap and are even being used to build the next generation of models.
  2. The AI security market has exploded into hundreds of companies, including many focused on automating SOC work, and it has attracted substantial venture funding.
  3. AI security is becoming a standard part of organizational defenses, and soon it will no longer make sense to treat it as a separate category because every vendor will have AI-driven security features.
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The next big thing in 2026 will be...

next big thing • 141 implied HN points • 01 Jan 26
🕹 Technology Cybersecurity
  1. Autonomous, end-to-end AI agents will move from being copilots to pilots, owning whole workflows and delivering outcomes rather than just answering prompts.
  2. Persistent memory, proactive behavior, and on-device inference will make AI feel like a personal companion and unlock a wave of new consumer products, generative media, and personalized experiences.
  3. AI will start showing up in the bottom line, driving real deployments, new pricing models, hardware launches, and a surge of IPOs and M&A, while human-heavy AI services get exposed if they can’t prove machine-driven margins.

Israeli Spying After Epstein

The Corbett Report • 19 implied HN points • 22 Feb 26
🌍 World Politics Cybersecurity
  1. Jeffrey Epstein acted as a fixer for Israeli interests, using his network to connect Israeli officials and ex-intelligence figures with wealthy investors and foreign governments to secure contracts and influence. He helped promote projects like Carbyne and other Israeli tech into international deals.
  2. Many veterans of Israel’s Unit 8200 have founded tech and spyware companies that embed intelligence capabilities into emergency services, communications, and surveillance tools. This trend shows espionage shifting from old-fashioned honeytrap blackmail to software backdoors and mass digital surveillance.
  3. Despite scandals and some sanctions, governments and investors continue to buy, back, or relax restrictions on Israeli-linked surveillance firms, allowing the spyware industry to expand and become a central tool for modern influence and control.

OpenAI in Davos…Looking Back on 10 Years of Unicorns With Aileen Lee...Stripe and SpaceX’s Secondary Pricing

Newcomer • 1238 implied HN points • 19 Jan 24
🕹 Technology Cybersecurity
  1. OpenAI has faced challenges as a 'big tech' company early in its life, including raising significant funds and experiencing executive drama.
  2. OpenAI removed its 'Don't Be Evil' slogan and is now collaborating with the Department of Defense on cybersecurity projects.
  3. Aileen Lee's research on unicorns reveals that strong unicorns are more involved in enterprise tech than consumer tech, with many 'papercorns' yet to prove their value.

Exploring the Dark Web: Rivenrayne, HN and 764

Lucian’s Substack • 1 HN point • 05 Oct 24
🕹 Technology Cybersecurity
  1. Rivenrayne, Harm Nation, and 764 are dangerous online groups that harm vulnerable people, especially kids. They promote violence, self-harm, and exploitation through organized networks.
  2. These groups use gaming and social media platforms to recruit and manipulate young people. They often focus on communities where members are already struggling with issues like mental health.
  3. It's important for parents and online communities to be aware of these groups and how they operate. By supporting at-risk individuals and monitoring online spaces, we can help reduce the impact of these harmful networks.

The Unbreakable Message

Who is Robert Malone • 15 implied HN points • 28 Feb 26
🕹 Technology Cybersecurity
  1. Quantum communication uses quantum physics to make eavesdropping detectable, so intercepted messages can't be silently copied or later decrypted. This prevents the "harvest now, decrypt later" threat.
  2. Militaries, intelligence agencies, and banks are prioritizing quantum links for the most sensitive communications because the technology can provide a lasting strategic advantage. Whoever builds the networks and standards first could shape the global information architecture and force others to choose sides.
  3. Practical limits remain—photons are lost in fiber, quantum repeaters are needed, and current hardware is expensive and low-bandwidth—so broad consumer use is likely decades away. Once repeaters and miniaturization mature, a quantum internet and distributed quantum computing could reshape security, finance, healthcare, and science.

My Christmas Security Wishlist

Frankly Speaking • 152 implied HN points • 16 Dec 25
🕹 Technology Cybersecurity
  1. Stop outdated controls like mandatory 90-day password changes and security questions and instead rely on password managers plus MFA.
  2. Move away from checkbox trainings and dozens of point tools; security teams should build engineering solutions, use automated guardrails, and consolidate tooling to actually reduce risk.
  3. Make security an enabling partner by aligning compliance to real risk, supporting safe AI adoption, delivering measurable ROI, and building trust through strong detection, response, and clear communication.

Import AI 367: Google's world-spanning model; breaking AI policy with evolution; $250k for alignment benchmarks

Import AI • 599 implied HN points • 01 Apr 24
🕹 Technology Cybersecurity
  1. Google is working on a distributed training approach named DiPaCo to create large neural networks that break traditional AI policy focusing on centralized models.
  2. Microsoft and OpenAI plan to build a $100 billion supercomputer for AI training, signaling the transition of AI industry towards capital intensive endeavors like oil extraction or heavy industry, touching on regulatory and industrial policy implications.
  3. Sakana AI has developed 'Evolutionary Model Merge' method to create advanced AI models by combining existing ones through evolutionary techniques, potentially changing AI policy by challenging the need for costly model development.

The Boring AI Questions That Actually Matter

Margins by Ranjan Roy and Can Duruk • 878 implied HN points • 23 Jul 25
🕹 Technology Cybersecurity
  1. The future of AI is not just about exciting advancements, but also about who gets to control the technology. Companies like OpenAI and Google currently hold a lot of power, but open-source models could change this.
  2. Some AI models perform better than others, and we don't fully understand why. This difference in quality may come down to the talent behind the models, not just the data or hardware.
  3. Instead of worrying about extreme scenarios, the impact of AI will likely be more mundane and integrated into everyday life, similar to how air conditioning changed industries without anyone really noticing at first.

Latest Cyber Security Risks - August 18, 2024

Vigilainte Newsletter • 59 implied HN points • 18 Aug 24
🕹 Technology Cybersecurity
  1. ADT confirmed a data breach where customer information was leaked online. They are investigating how deep the breach goes and are working on fixing their systems.
  2. A major background check company had a huge data breach exposing nearly 3 billion records. This raises concerns for anyone who has had a background check done.
  3. Microsoft revealed multiple serious vulnerabilities in their products. Users are advised to update their systems promptly to protect against potential attacks.

Elon Musk's 'Telepathy'

Break Free with Karen Hunt • 904 implied HN points • 30 Jan 24
🕹 Technology Cybersecurity
  1. Elon Musk's Neuralink aims to create a brain chip for medical needs and human potential.
  2. Musk's 'Circle of 5' includes X, Crypto, Neuralink, Starlink, and SpaceX for global connectivity and control.
  3. Concerns arise over privacy, autonomy, and ethics with the potential implications of brain-reading technologies.

Resilient Cyber Newsletter #11

Resilient Cyber • 39 implied HN points • 27 Aug 24
🕹 Technology Cybersecurity
  1. CISOs and security leaders need to understand Directors & Officers insurance due to increasing legal troubles. Knowing how to protect themselves from litigation is becoming essential.
  2. AI is making big changes in development, as shown by Amazon's claim of saving thousands of developer years. This shows a trend towards AI taking over more coding tasks.
  3. The application security market is very complicated. It's important to grasp what tools and strategies work best to secure software without getting lost in all the technical jargon.

Cybersecurity predictions for 2025

Frankly Speaking • 152 implied HN points • 10 Dec 25
🕹 Technology Cybersecurity
  1. Security budgets are changing, focusing more on hiring skilled people rather than just buying tools. This shift means companies want to solve problems with real expertise instead of relying heavily on tech alone.
  2. AI is expected to breathe new life into older security areas that haven't kept up with changes in technology. By understanding context better, AI can help improve outdated solutions in data and application security.
  3. The role of security operations centers (SOCs) is likely to change significantly. Companies may reconsider the need for large SOCs and look for more efficient ways to manage security functions, especially using AI.

Resilient Cyber Newsletter #13

Resilient Cyber • 19 implied HN points • 10 Sep 24
🕹 Technology Cybersecurity
  1. The cybersecurity workforce is struggling with a high number of unfilled jobs, as organizations report a lack of qualified candidates. Many are misled by claims of high salaries with little experience needed.
  2. In 2024, security budgets increased modestly, but hiring for security staff has declined significantly. This stagnation in hiring indicates a complicated employment landscape in cybersecurity.
  3. The White House has released a roadmap to improve internet routing security, focusing on enhancing the Border Gateway Protocol. This aims to boost the overall safety of internet infrastructure.

🌎🎇 Geopolitics + superintelligence: 8 scenarios

Faster, Please! • 913 implied HN points • 07 Jul 25
🕹 Technology Cybersecurity
  1. Winning the race for artificial general intelligence (AGI) is crucial. Countries need to prioritize developing AGI to ensure a better future.
  2. Skepticism about how soon AGI will arrive is okay, but it’s still important for policymakers to start planning for its potential impacts.
  3. Even if AGI is years away, the risks and benefits are significant enough that action should be taken now to address geopolitical challenges.

✨ Are we ready for a rogue AI attack? We should be

Faster, Please! • 274 implied HN points • 11 Nov 25
🇺🇸 U.S. Politics Cybersecurity
  1. The biggest risk from rogue AI isn't just the technology itself, but how people might react to the confusion it creates. Human decisions could end up being chaotic and uncertain during such events.
  2. In a recent wargame, a series of cyberattacks caused major disruptions, making it hard to figure out who was behind them. This highlights the need for clear communication and quick decision-making in crisis situations.
  3. Officials might hesitate to act, unsure whether the threat is from a foreign entity or an out-of-control AI. This uncertainty puts an emphasis on better planning and understanding of potential AI threats.

AI #91: Deep Thinking

Don't Worry About the Vase • 2732 implied HN points • 21 Nov 24
🕹 Technology Cybersecurity
  1. DeepSeek has released a new AI model similar to OpenAI's o1, which has shown potential in math and reasoning, but we need more user feedback to confirm its effectiveness.
  2. AI models are continuing to improve incrementally, but people seem less interested in evaluating new models than they used to be, leading to less excitement about upcoming technologies.
  3. There are ongoing debates about AI's impact on jobs and the future, with some believing that the rise of AI will lead to a shift in how we find meaning and purpose in life, especially if many jobs are replaced.

Cybersecurity News Roundup

Vigilainte Newsletter • 19 implied HN points • 09 Sep 24
🕹 Technology Cybersecurity
  1. Popular travel sites have serious security problems that could put users at risk. It's important for them to fix these issues soon.
  2. Planned Parenthood confirmed a cyberattack, and a ransomware group claimed they did it. This shows how vulnerable even established organizations can be.
  3. CISA has released a warning about RansomHub ransomware and is urging people to be aware of it. Staying informed about these threats is essential for everyone.

2024: The Year in Weird and Stupid Futures

Read Max • 2318 implied HN points • 27 Dec 24
🕹 Technology Cybersecurity
  1. Weird and unexpected events have been happening all year, highlighting the strange side of technology and society. It's important to stay aware of how unusual stories can reflect bigger issues.
  2. A lot of new technologies and strange occurrences have been reported, from AI mishaps to bizarre news stories. It shows how fast things are changing and how we need to keep up.
  3. There have been several reports on how people are engaging with technology, sometimes in funny or surprising ways. This can include both the good and the bad outcomes of our tech use.

AI #94: Not Now, Google

Don't Worry About the Vase • 2464 implied HN points • 12 Dec 24
🕹 Technology Cybersecurity
  1. AI technology is rapidly improving, with many advancements happening from various companies like OpenAI and Google. There's a lot of stuff being developed that allows for more complex tasks to be handled efficiently.
  2. People are starting to think more seriously about the potential risks of advanced AI, including concerns related to AI being used in defense projects. This brings up questions about ethics and the responsibilities of those creating the technology.
  3. AI tools are being integrated into everyday tasks, making things easier for users. People are finding practical uses for AI in their lives, like getting help with writing letters or reading books, making AI more useful and accessible.

The YOLO Shield: Why Autonomous AI Needs a “Temporal Kill Switch”

Phoenix Substack • 14 implied HN points • 24 Feb 26
🕹 Technology Cybersecurity
  1. Giving an AI agent full live permissions is risky because any destructive or exfiltration action can become permanent in a static environment.
  2. Use a temporal sandbox that regularly wipes and recreates infrastructure and rotates network identities and tokens mid-session so damage is erased and attacker tunnels are broken before they persist.
  3. Don’t rely on slow detection; assume systems will drift and enforce deterministic hygiene by resetting to a known-good state so you can preserve agent autonomy without lasting harm.

China Can Cause Blackouts In US And Europe Through Solar Inverter Technology, Suggest Officials

Michael Shellenberger • 1105 implied HN points • 16 May 25
🕹 Technology Cybersecurity
  1. Chinese solar inverters can be remotely controlled, raising fears about their use in the US and Europe. This means they could shut down power systems unexpectedly.
  2. There are concerns that Chinese companies must cooperate with their government, which might expose critical infrastructure to risks. This includes sharing data or giving access to foreign authorities.
  3. The growth of solar energy could actually make the power grid more vulnerable to blackouts. More connections might create more weak points that could be targeted in a conflict.

Vulnerability Exploitation in the Wild

Resilient Cyber • 79 implied HN points • 01 Aug 24
🕹 Technology Cybersecurity
  1. The Exploit Prediction Scoring System (EPSS) helps predict how likely a software vulnerability is to be exploited. It provides a score, so organizations can focus on the vulnerabilities that really matter.
  2. Most vulnerabilities that are reported, about 94%, aren’t even exploited in real life. This means organizations waste a lot of resources on vulnerabilities that pose no threat, highlighting the importance of focusing on the ones that are actually exploited.
  3. The EPSS tool works better than older systems like the Common Vulnerability Scoring System (CVSS). It helps organizations prioritize their efforts because it brings more efficiency in vulnerability management.

Can China’s AI IPOs give OpenAI and Anthropic courage?

Alex's Personal Blog • 98 implied HN points • 05 Jan 26
💼 Business Cybersecurity
  1. A new image-editing feature in a popular AI model let users alter others' photos and led to sexualized deepfakes, sparking global backlash and showing that weak safeguards can cause big regulatory and reputational damage.
  2. The U.S.'s aggressive action against Venezuela's leader signals rising geopolitical tension that could push technology markets and supply chains to split into competing blocs over time.
  3. Strong investor interest in Chinese AI IPOs like Z.ai and MiniMax could encourage American AI labs to try public listings too, since U.S. labs generally have more revenue and need fresh capital.

UnitedHealth Group: vulnerable and ill-equipped to defend against modern threats like cyberattacks

HEALTH CARE un-covered • 599 implied HN points • 05 Mar 24
🏥 Health Politics Cybersecurity
  1. UnitedHealth faced a serious cyberattack, showing that even big companies can be vulnerable to cybercrime. This situation highlights the risks of having too much sensitive data controlled by a few large corporations.
  2. The healthcare system is focused more on profit than patient care. This has left it weak against modern threats like cyberattacks, which can disrupt services and harm patients.
  3. To fix these issues, we need stronger rules to protect patient data and make sure healthcare companies prioritize patient safety over making money. It's important to shift our focus from profits to genuine care for patients.

Systemic Concentrated Cyber Risks

Resilient Cyber • 79 implied HN points • 28 Jul 24
🕹 Technology Cybersecurity
  1. Concentrated cyber risks can cause major problems when a few companies dominate the market. If something goes wrong with a major vendor, it affects many organizations relying on them.
  2. Having a diverse range of vendors can help reduce risks. This diversity encourages innovation and prevents over-dependence on one company's tools.
  3. Finding the right mix between using dominant vendors and maintaining vendor diversity is crucial. Organizations must look for a balance that meets their unique needs while minimizing risks.

Resilient Cyber Newsletter #10

Resilient Cyber • 39 implied HN points • 20 Aug 24
🕹 Technology Cybersecurity
  1. Security tool sprawl is increasing in organizations, with many now using 70 to 90 different tools, making it harder to manage effectively.
  2. AI can speed up fixing coding vulnerabilities, but many AI-generated codes can be insecure, requiring careful checking by developers.
  3. Understanding systems and processes is key to tackling the complexities of cybersecurity, rather than blaming external forces for challenges in job applications.

Mourning for GPT-4o Boyfriends + Beijing Hates the H20?

ChinaTalk • 504 implied HN points • 15 Aug 25
🕹 Technology Cybersecurity
  1. China is worried about foreign chips, especially Nvidia's H20 GPUs, and suspects they might have hidden surveillance features. They think these chips could jeopardize their security and want to promote local alternatives.
  2. Many people in China are emotional about losing access to GPT-4o, a version of an AI they felt connected to. They believe new versions lack the warmth and emotional depth they valued in older models.
  3. Chinese state media is calling out local electric vehicle makers for their poor safety in testing. This is surprising since state media often praises domestic products, but it shows they want to improve industry standards.

Crowdstrike: How Not to Do OTA Updates

burkhardstubert • 39 implied HN points • 19 Aug 24
🕹 Technology Cybersecurity
  1. CrowdStrike made a big mistake by rolling out an untested update to all users at once, causing millions of computers to crash. They need to treat configuration updates like real code and test them properly.
  2. Delta Airlines faced huge losses because it didn’t have backup systems in place when the CrowdStrike update went wrong. Having spare systems or a better contingency plan could have minimized disruptions.
  3. Microsoft should improve its recovery methods after crashes, possibly by adopting an automatic system recovery strategy. Learning from other platforms could help avoid these issues in the future.

Resilient Cyber Newsletter #6

Resilient Cyber • 79 implied HN points • 23 Jul 24
🕹 Technology Cybersecurity
  1. Crowdstrike faced a huge IT outage because of a faulty update, affecting many industries. This shows how important having strong disaster recovery processes is for businesses.
  2. There's a growing debate about who the Chief Information Security Officer (CISO) should report to—whether the CEO or CIO. What really matters is how much influence and impact they have in their role.
  3. Wiz opted out of a big sale to Google and plans to pursue its IPO instead. Their focus on building a solid security platform may help them succeed despite the tough market.

Navigating AI Risks with ATLAS

Resilient Cyber • 19 implied HN points • 04 Sep 24
🕹 Technology Cybersecurity
  1. MITRE's ATLAS helps organizations understand the risks associated with AI and machine learning systems. It provides a detailed look at what attackers might do and how to counteract those strategies.
  2. The ATLAS framework includes various tactics and techniques that cover the entire lifecycle of an attack, from reconnaissance to execution and beyond. This helps businesses prepare better defenses against potential threats.
  3. Using tools like ATLAS and its companion resources can help secure AI adoption and development by highlighting vulnerabilities and suggesting mitigations to reduce risks.

AI #93: Happy Tuesday

Don't Worry About the Vase • 1971 implied HN points • 04 Dec 24
🕹 Technology Cybersecurity
  1. Language models can be really useful in everyday tasks. They can help with things like writing, translating, and making charts easily.
  2. There are serious concerns about AI safety and misuse. It's important to understand and mitigate risks when using powerful AI tools.
  3. AI technology might change the job landscape, but it's also essential to consider how it can enhance human capabilities instead of just replacing jobs.

A small progress

Thái | Hacker | Kỹ sư tin tặc • 818 implied HN points • 22 Dec 23
🕹 Technology Cybersecurity
  1. The Vietnamese Government is focusing on enhancing cybersecurity in the banking and cashless payment sectors to prevent system intrusions and theft from bank accounts.
  2. Foreign hackers have previously stolen significant amounts of money from domestic banks in Vietnam, prompting authorities to take action.
  3. Efforts by organizations like Calif, led by the author, aim to reduce vulnerabilities in critical national systems and contribute to enhancing security measures in Vietnam.

Evolve Exec Pleads The Fifth in Missing Money Case

Fintech Business Weekly • 44 implied HN points • 18 Jan 26
💰 Finance Cybersecurity
  1. Evolve’s tie-up with Synapse left thousands of customers unable to access funds, reconciliations showed huge shortfalls, a key exec invoked the Fifth on FDIC insurance, and the bank is still finding and distributing more money more than 600 days after the freeze.
  2. Evolve is resisting document requests by citing consumer privacy rules even though it was previously hacked and leaked terabytes of data, and court filings say the bank doesn’t know how the forensic firm Ankura calculated amounts returned to users while seeking to seal deposition transcripts.
  3. bunq is reapplying for a U.S. national bank charter under a new U.S. holding structure, but faces tough odds: other European digital banks have struggled in America, the addressable market of European expats is small, and bunq’s fee-driven model, limited lending, and clunky app may not win many U.S. customers.