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Cybersecurity Tech Brief By HackerNoon

HackerNoon

Learn the latest Cybersecurity updates in the tech world.

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August 11 · 6 min
24 Billion Stolen Passwords in One Database: Inside the Industrial Infostealer Economy
This story was originally published on HackerNoon at: https://hackernoon.com/24-billion-stolen-passwords-in-one-database-inside-the-industrial-infostealer-economy. A single exposed database held 24 billion stolen credentials — how the infostealer economy industrialized account takeover, and how to defend. Check more stories related to cybersecurity at: https://hackernoon.com/c/cybersecurity. You can also check exclusive content about #cybersecurity, #password-security, #credential-stuffing, #infostealer, #data-breaches, #cybersecurity-awareness, #cyber-threats, #password-breached, and more. This story was written by: @nickmarsteller. Learn more about this writer by checking @nickmarsteller's about page, and for more stories, please visit hackernoon.com. Researchers discovered an exposed database containing 24 billion stolen credentials aggregated from infostealer malware, historic breaches, and cybercriminal infrastructure.
August 10 · 6 min
The $10,000 Fine Behind a 15-Million-Record Breach: MMG Fusion and HIPAA's Weakest Link
This story was originally published on HackerNoon at: https://hackernoon.com/the-$10000-fine-behind-a-15-million-record-breach-mmg-fusion-and-hipaas-weakest-link. The MMG Fusion HIPAA settlement exposed 15M records for a $10,000 fine — what it means for healthcare vendors and business-associate breach risk. Check more stories related to cybersecurity at: https://hackernoon.com/c/cybersecurity. You can also check exclusive content about #healthcare-cybersecurity, #hipaa, #mmg-fusion, #hipaa-security-rule, #hipaa-privacy-rule, #healthcare-data-breach, #vendor-risk-management, #healthcare-compliance, and more. This story was written by: @nickmarsteller. Learn more about this writer by checking @nickmarsteller's about page, and for more stories, please visit hackernoon.com. Healthcare software vendor MMG Fusion exposed the protected health information of approximately 15 million patients, failed to notify the healthcare providers it served as required by HIPAA, and only came under investigation after a complaint revealed the data was being sold on the dark web. Although the company settled with HHS OCR for just $10,000, the more significant consequence is a three-year federally monitored corrective action plan. The case underscores that third-party vendors remain one of healthcare's biggest security risks—and that continuous risk analysis, strong identity and access controls, and timely breach notification are just as critical as the financial penalties that follow a breach.
August 9 · 17 min
61 Blog Posts To Learn About Http
This story was originally published on HackerNoon at: https://hackernoon.com/61-blog-posts-to-learn-about-http. Learn everything you need to know about Http via these 61 free HackerNoon blog posts. Check more stories related to cybersecurity at: https://hackernoon.com/c/cybersecurity. You can also check exclusive content about #http, #learn, #learn-http, and more. This story was written by: @learn. Learn more about this writer by checking @learn's about page, and for more stories, please visit hackernoon.com.
August 7 · 18 min
Ten AI Events That Defined July
This story was originally published on HackerNoon at: https://hackernoon.com/ten-ai-events-that-defined-july. Global powers are shifting from AI rule-making to operational control, with the EU, US, and China formalizing AI governance and shaping its implementation. Check more stories related to cybersecurity at: https://hackernoon.com/c/cybersecurity. You can also check exclusive content about #cybersecurity, #finance, #leadership, #technology, #artificial-intelligence, #business-strategy, #ai, and more. This story was written by: @ttassos. Learn more about this writer by checking @ttassos's about page, and for more stories, please visit hackernoon.com. Global powers are shifting from AI rule-making to operational control, with the EU, US, and China formalizing AI governance and shaping its implementation.
August 7 · 6 min
AI Agent Identity Is Built on Broken Service Account Hygiene
This story was originally published on HackerNoon at: https://hackernoon.com/ai-agent-identity-is-built-on-broken-service-account-hygiene. AI agent identity looks new, but enterprises are still carrying the same unresolved service-account problems underneath it. Check more stories related to cybersecurity at: https://hackernoon.com/c/cybersecurity. You can also check exclusive content about #cybersecurity, #ai-agents, #identity-access-management, #machine-identities, #ai-governance, #oauth, #enterprise-security, #ai-agent-identity, and more. This story was written by: @kashifnazir. Learn more about this writer by checking @kashifnazir's about page, and for more stories, please visit hackernoon.com. AI agent identity is a faster version of the old service-account problem: unclear ownership, excessive permissions, weak auditability and delayed discovery.
August 6 · 29 min
The Real Cryptography Behind a Fictional Quantum Machine
This story was originally published on HackerNoon at: https://hackernoon.com/the-real-cryptography-behind-a-fictional-quantum-machine. A novel about a machine that breaks RSA-4096. Seven details readers assume were invented for the plot, traced to the document each actually came from. Check more stories related to cybersecurity at: https://hackernoon.com/c/cybersecurity. You can also check exclusive content about #cybersecurity, #pqc, #post-quantum-cryptography, #cryptography, #ml-kem, #post-quantum-security, #rsa-4096, #public-exponent-65537, and more. This story was written by: @0xlooptheory. Learn more about this writer by checking @0xlooptheory's about page, and for more stories, please visit hackernoon.com. Cleartext is a techno-thriller built on a machine nobody has publicly demonstrated. Most of the cryptography around that machine is taken directly from published standards and papers: RFC 8017, FIPS 203, Signal's PQXDH announcement, the NIST post-quantum FAQ, Executive Order 12333. This essay traces seven such details to their primary sources, then states plainly which parts of the book are invented, and how far real quantum hardware sits from the fictional machine.
August 6 · 24 min
Europe Turns AI Sovereignty Into a €30 Billion Compute Tender
This story was originally published on HackerNoon at: https://hackernoon.com/europe-turns-ai-sovereignty-into-a-euro30-billion-compute-tender. Europe has launched a €30 billion tender for up to seven AI Gigafactories, combining public and private investment, to build sovereign AI infrastructure. Check more stories related to cybersecurity at: https://hackernoon.com/c/cybersecurity. You can also check exclusive content about #cybersecurity, #machine-learning, #community, #finance, #large-language-models, #software-development, #eu-ai, #ai-gigafactories, and more. This story was written by: @ttassos. Learn more about this writer by checking @ttassos's about page, and for more stories, please visit hackernoon.com. Europe has launched a €30 billion tender for up to seven AI Gigafactories, combining public and private investment, to build sovereign AI infrastructure.
August 5 · 4 min
2026 Cybersecurity Excellence Awards: Community Choice Winners Selected Through 80,000 Votes
This story was originally published on HackerNoon at: https://hackernoon.com/2026-cybersecurity-excellence-awards-community-choice-winners-selected-through-80000-votes. Community Choice is the only Cybersecurity Excellence Awards recognition determined directly by community voting. It complements the jury awards by recognizing Check more stories related to cybersecurity at: https://hackernoon.com/c/cybersecurity. You can also check exclusive content about #cybersecurity, #cybersecurity-excellence-award, #cybernewswire, #press-release, #cyber-security-awareness, #cybersecurity-tips, #cybercrime, #good-company, and more. This story was written by: @cybernewswire. Learn more about this writer by checking @cybernewswire's about page, and for more stories, please visit hackernoon.com.
August 5 · 13 min
Inside DNP3: Building an Outstation from the Ground Up
This story was originally published on HackerNoon at: https://hackernoon.com/inside-dnp3-building-an-outstation-from-the-ground-up. Hands-on DNP3 protocol analysis in Python: state machines, transport reassembly anomalies, administrative functions, and Secure Authentication (SA v5). Check more stories related to cybersecurity at: https://hackernoon.com/c/cybersecurity. You can also check exclusive content about #cybersecurity, #scada, #ot-security, #ics-ot-security, #dnp3-protocol, #python, #reverse-engineering, #inside-dnp3, and more. This story was written by: @404saint. Learn more about this writer by checking @404saint's about page, and for more stories, please visit hackernoon.com. We built a custom Python-based DNP3 lab to analyze protocol mechanics from the raw socket layer up across 5 phases: 1. Reconnaissance: Parsed Class 0 Integrity Reads to extract Internal Indication (IIN) status bytes (e.g: IIN1.7 Device Restart). 2. Control Execution: Evaluated Select-Before-Operate (SBO) workflows, verifying that un-armed `OPERATE` (`FC 0x04`) requests are rejected while `DIRECT OPERATE` (`FC 0x05`) waives arming. 3. Administrative Functions: Tested system-level functions (FC 0x0D, FC 0x0E, FC 0x12, FC 0x18), showing how `STOP APPLICATION` halts application-layer processing while the network socket remains reachable. 4. Transport Layer: Probed single-byte transport header reassembly (FIR/FIN/SEQ) using orphaned fragments to trigger IIN2.2 errors, and verified unsolicited response forgery (FC 0x82). 5. Secure Authentication (SA v5): Implemented IEEE 1815-2012 Group 120 challenge-response HMAC exchanges to secure critical function codes without encrypting underlying payloads.
August 4 · 8 min
Probably Provenance? You Can’t Just Slap a Sticker on It
This story was originally published on HackerNoon at: https://hackernoon.com/probably-provenance-you-cant-just-slap-a-sticker-on-it. C2PA treats provenance like a sticker. This essay argues AI agents need locally held, tamper-evident logs that anyone can verify. Check more stories related to cybersecurity at: https://hackernoon.com/c/cybersecurity. You can also check exclusive content about #data-privacy-compliance, #blockchain-data-provenance, #data-provenance-in-ai-models, #c2pa, #provenance-trust-models, #certificate-transparency, #digital-content-provenance, #c2pa-limitations, and more. This story was written by: @paulkrause. Learn more about this writer by checking @paulkrause's about page, and for more stories, please visit hackernoon.com. The article argues that C2PA’s content-bound manifests can be separated from assets during ordinary transformations and that its official trust model still depends on approved certificate authorities. It proposes locally held, append-only and tamper-evident system logs as a stronger model for recording autonomous-agent actions. C2PA does support both embedded and externally stored manifests, as well as soft bindings intended to reconnect altered assets with provenance records.
August 4 · 8 min
10 Hottest Startups to Watch in 2026
This story was originally published on HackerNoon at: https://hackernoon.com/10-hottest-startups-to-watch-in-2026. Check more stories related to cybersecurity at: https://hackernoon.com/c/cybersecurity. You can also check exclusive content about #cybersecurity, #cybercrime, #freehand, #clay, #startups, #startup, #startups-top-story, #velocity, and more. This story was written by: @ruth-hasson. Learn more about this writer by checking @ruth-hasson's about page, and for more stories, please visit hackernoon.com.
August 3 · 6 min
Privacy Is No Longer a Requirement. It's an Architectural Constraint
This story was originally published on HackerNoon at: https://hackernoon.com/privacy-is-no-longer-a-requirement-its-an-architectural-constraint. Most engineering teams say privacy comes first, then ship architectures that prove otherwise. Why privacy and accessibility are constraints, not checklists. Check more stories related to cybersecurity at: https://hackernoon.com/c/cybersecurity. You can also check exclusive content about #privacy-by-design, #software-architecture, #privacy-engineering, #accessibility-engineering, #build-time-privacy-checks, #privacy-cicd-gates, #accessibility-tree-testing, #distributed-data-deletion, and more. This story was written by: @ridhdhidesai_109. Learn more about this writer by checking @ridhdhidesai_109's about page, and for more stories, please visit hackernoon.com. Every engineering team says privacy and accessibility come first, but most architectures treat them as a checklist bolted onto the end of the pipeline -- which means they're the first thing cut under a deadline. The argument here is that privacy and accessibility are architectural constraints, not policies: you design against them like you design against latency. Privacy gets exponentially harder at scale (location traces are nearly unique; deletion is a distributed-systems problem, not one write), and accessibility bugs slip because functional tests assert behavior, not semantics -- the button still works, it just announces nothing. The fix is to automate the known invariants as build gates (data-minimization as a schema check) and reserve human expert judgment for the genuinely new trade-offs. Trust isn't a value you profess; it's a property your architecture either has or it doesn't.

Showing 81–92 of 92 episodes