Tech Skills

Cybersecurity

Ethical hacking, penetration testing, network security, CTFs and defensive security

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lessons
Skills in this topic
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Security Basics
beginner
Fix OWASP top 10 vulnerabilities
AI Security
intermediate
Identify and patch prompt injection vulnerabilities
Network Security
intermediate
Configure a firewall with proper inbound/outbound rules
Ethical Hacking & Pen Testing
intermediate
Conduct a full pen test with Kali Linux
Cloud Security
intermediate
Implement IAM least-privilege policies on AWS/GCP
Incident Response
intermediate
Build an incident response playbook
Security Compliance
intermediate
Map controls for SOC 2 Type II compliance
Defensive AI
advanced
Build an AI-powered log anomaly detector
All Reads (10,960) Articles (5426)Blog Posts (4274)Tutorials (386)Research Papers (34)News (840)
E26 Deliverable Quality: The Low, Medium, and High Tiers
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
E26 Deliverable Quality: The Low, Medium, and High Tiers
The same E26 documents — so why do some projects build resilience while others leave behind only paperwork? Continue reading on Medium »
Your Baby Monitor's Biggest Security Flaw Isn't Hackers. It's the Company That Built It.
Dev.to · Spicy 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Your Baby Monitor's Biggest Security Flaw Isn't Hackers. It's the Company That Built It.
In May 2026, a French ethical hacker named Sammy Azdoufal bought a baby monitor off Amazon and spent...
Reddit r/cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Five Eyes agencies say AI is shrinking the vuln-to-exploit window to "months, not years" — what are you actually changing?
The heads of the Five Eyes cyber agencies (NSA, NCSC, ASD, CSE, GCSB) plus CISA put out a joint statement last week. Core argument: frontier AI is compressing t
Nation-State Actors Are Now Targeting Your AI Agent's npm Packages
Dev.to · Toni Antunovic 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Nation-State Actors Are Now Targeting Your AI Agent's npm Packages
Sapphire Sleet (North Korean APT) compromised 140+ Mastra npm packages via postinstall hook to steal AI API keys and cloud credentials from developer machines.
Volt Typhoon Room — TryHackMe Walkthrough (Splunk)
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Volt Typhoon Room — TryHackMe Walkthrough (Splunk)
In the world of defensive security, detecting sophisticated Advanced Persistent Threats (APTs) requires a deep understanding of stealth… Continue reading on Med
TechRepublic 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Denmark Ordered to Pay $12M Over Huawei Equipment Removal
A Danish court ordered the state to compensate TDC NET after the removal of Huawei fiber-network equipment, raising questions about telecom security costs. The
Medium · Programming 🔐 Cybersecurity ⚡ AI Lesson 1w ago
I Added a Rust Security Layer to My FastAPI App (Not for Speed) — Here’s the Pentest Result
My customer asked for a SOC 2 pentest. I thought we were ready. Continue reading on Medium »
Medium · Python 🔐 Cybersecurity ⚡ AI Lesson 1w ago
I Added a Rust Security Layer to My FastAPI App (Not for Speed) — Here’s the Pentest Result
My customer asked for a SOC 2 pentest. I thought we were ready. Continue reading on Medium »
The Internet Still Thinks It’s a Postal Service
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
The Internet Still Thinks It’s a Postal Service
Have we mistaken message transport for communication itself? Continue reading on Medium »
ZDNet 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Chrome's next update will kill your adblocker - and make the web less safe
Under-the-hood changes in Google's browser - aimed at improving privacy, security, and performance - will reduce the control you have over your browsing experie
From Root CA to User Authorization in nginx+apache. Part 2: Certificate Revocation, CRL and OCSP
Dev.to · Maksim Didenko 🔐 Cybersecurity ⚡ AI Lesson 1w ago
From Root CA to User Authorization in nginx+apache. Part 2: Certificate Revocation, CRL and OCSP
A follow-up to Part 1 (EN on LinkedIn · RU on Habr), where we stood up a two-tier PKI: a Root CA and...
Live Webinar: From Backup to Cyber Resilience: How MSPs Turn Protection Into Revenue
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Live Webinar: From Backup to Cyber Resilience: How MSPs Turn Protection Into Revenue
MSP customers are asking different questions now. Not about backup, but about recovery times, cyber resilience and how they stay… Continue reading on Medium »
Reddit r/cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Looking for DLP consultant help
Hi all, We're operating a medium sized business in the healthcare space, and we're looking to configure DLP rules within O365. We have a fairly large volume of
Lantronix Serial-to-IP RCE: OT Device Takeover via CVE-2025-67038
Dev.to · Satyam Rastogi 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Lantronix Serial-to-IP RCE: OT Device Takeover via CVE-2025-67038
CVE-2025-67038 in Lantronix Serial-to-IP converters enables unauthenticated remote code execution on operational technology devices. Active exploitati
Hands-On AWS Security: Solving the Flaws.cloud Challenge
Medium · DevOps 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Hands-On AWS Security: Solving the Flaws.cloud Challenge
This report presents a comprehensive analysis of the Flaws.cloud challenge, a hands-on AWS security training platform designed to simulate… Continue reading on
vrp-ir 0.9.0: a line-cited security audit for Huawei VRP/USG configs
Dev.to · zynovex-support 🔐 Cybersecurity ⚡ AI Lesson 1w ago
vrp-ir 0.9.0: a line-cited security audit for Huawei VRP/USG configs
If you do acceptance or audit work on Huawei gear, you've hit this wall: Batfish explicitly marks...
JetBrains — Write-Up
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
JetBrains — Write-Up
Lab: CyberDefenders — JetBrains Continue reading on Medium »
TechRepublic 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Interpol: Cybercrime Hits 30% of Recorded Crime in Surveyed APAC Countries
Interpol’s latest Asia and South Pacific cybercrime assessment shows how phishing, ransomware, DDoS attacks, infostealers, and AI-enabled scams are raising secu
Beyond the Hype: Why Your GRC Strategy Fails Without Real Encryption and DLP
Dev.to · Massimiliano B. 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Beyond the Hype: Why Your GRC Strategy Fails Without Real Encryption and DLP
Let’s cut through the noise. When we talk about Governance, Risk, and Compliance (GRC), people often...
️ Cyber Security Mastery Guide: Protecting the Digital World in 2026
Medium · DevOps 🔐 Cybersecurity ⚡ AI Lesson 1w ago
️ Cyber Security Mastery Guide: Protecting the Digital World in 2026
“Security is not a product, but a process.” — Bruce Schneier Continue reading on Medium »
Demystifying Zero-Knowledge Proofs: Constructing a ZK-SNARK Verifier from First Principles
Dev.to · Ebendttl 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Demystifying Zero-Knowledge Proofs: Constructing a ZK-SNARK Verifier from First Principles
A mathematical deep-dive into Rank-1 Constraint Systems, Quadratic Arithmetic Programs, and implementing a cryptographic SNARK verifier in TypeScript.
Reddit r/cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
5 eyes statement
How are small sized companies dealing with this when security is an afterthought and the standards are low? Think Azure or AD with no housekeeping and owned by
Aston Martin Aramco signs Zscaler as its global cybersecurity partner
The Next Web AI 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Aston Martin Aramco signs Zscaler as its global cybersecurity partner
The multi-year deal puts Zscaler’s Zero Trust Exchange behind the team’s car design, race strategy and trackside data, with branding on the AMR26 from the Austr
Reddit r/cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Distributed firewalls as a substitute for network segmentation?
I am reviewing cyber controls for a financially services company which uses VMware distributed firewalls on its VMs. They have a sensitive system hosted in a se
Reddit r/cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Do businesses actually care about cybersecurity?
I have been around cybersecurity across the last 10 years and it is clear that businesses don’t really care about cybersecurity. It seems like you have to be in
Finding a vulnerability in Linways — My first security report
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Finding a vulnerability in Linways — My first security report
A few months ago, if someone had asked me whether I’d ever report a real security vulnerability, I probably would’ve laughed. Continue reading on Medium »
Lab: Remote code execution via web shell upload — PortSwigger Web Security Academy
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Lab: Remote code execution via web shell upload — PortSwigger Web Security Academy
This lab contains a vulnerable file upload function that does not perform any validation on the files being uploaded. Normally, a secure… Continue reading on Me
OpenAI Launches GPT-5.5-Cyber: The Age of Automated Patching is Here
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
OpenAI Launches GPT-5.5-Cyber: The Age of Automated Patching is Here
For as long as software has existed, cybersecurity has been a game of asymmetric warfare. Attackers only need to find a single… Continue reading on Medium »
FalconEye: An investigator’s toolkit for the open web
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
FalconEye: An investigator’s toolkit for the open web
Visit the Original Article Continue reading on OSINT Team »
Hello DEV! I'm Plugecon — security developer
Dev.to · Plugecon 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Hello DEV! I'm Plugecon — security developer
Hey DEV community! I'm Plugecon, a security-focused developer working with C/C++, Python, PHP and...
Reddit r/cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Microsoft: 2 ransomware groups hit SharePoint in parallel attacks
A Microsoft investigation into a ransomware case found that 2 different attackers operated simultaneously, demonstrating that modern attacks are not always isol
Securing S3 Bucket Policies: Public Access, Conditions, and Common Mistakes
Dev.to · Shieldly 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Securing S3 Bucket Policies: Public Access, Conditions, and Common Mistakes
Originally published at shieldly.io/blog. S3 bucket policies are written once and forgotten. They...
HackTheBox — Sizzle (Insane)
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
HackTheBox — Sizzle (Insane)
 This writeup is part of the Lainkusanagi OSCP Like List — a curated collection of machines recommended for OSCP preparation. Continue reading on Medium »
Shadow AI and the 247-Day Breach Lifecycle: Why Visibility Matters
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Shadow AI and the 247-Day Breach Lifecycle: Why Visibility Matters
Shadow AI often hides inside browsers, extensions, meeting tools, copilots, and employee workflows. Without visibility, risky AI usage can… Continue reading on
ZDNet 🔐 Cybersecurity ⚡ AI Lesson 1w ago
A crucial Windows security certificate just expired - how to check your PC
The first Windows Secure Boot expiration date is here for more than a billion PCs, with more to come - and even some Linux distros are affected. Is your PC read
GitLab Addresses Critical Security Flaws: A Reminder of the Importance of Secure Development…
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
GitLab Addresses Critical Security Flaws: A Reminder of the Importance of Secure Development…
Organizations worldwide rely on GitLab to manage software development, collaboration, and DevSecOps workflows. Recently, GitLab released… Continue reading on Me
Russia cracked an activist’s iPhone with Cellebrite, months after the firm said it left
The Next Web AI 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Russia cracked an activist’s iPhone with Cellebrite, months after the firm said it left
A Citizen Lab report puts forensic evidence and a Russian court document behind a familiar problem: surveillance tools do not come home when the seller asks. Ru
Metasploit: Introduction | Complete TryHackMe Walkthrough
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Metasploit: Introduction | Complete TryHackMe Walkthrough
Hello everyone, and welcome back! Continue reading on Medium »
Bug Bounty for Beginners 2026 Earn Your First $100 with Ethical Hacking | Step-by-Step Blueprint…
Medium · Programming 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Bug Bounty for Beginners 2026 Earn Your First $100 with Ethical Hacking | Step-by-Step Blueprint…
Ninety percent of beginners who start bug bounty hunting in 2026 will quit before they earn a single dollar. Not because they lack… Continue reading on Medium »
Bug Bounty for Beginners 2026 Earn Your First $100 with Ethical Hacking | Step-by-Step Blueprint…
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Bug Bounty for Beginners 2026 Earn Your First $100 with Ethical Hacking | Step-by-Step Blueprint…
Ninety percent of beginners who start bug bounty hunting in 2026 will quit before they earn a single dollar. Not because they lack… Continue reading on Medium »
The Dark Web’s Biggest Lie: Why “Legit CC Shops” Don’t Exist and What Actually Keeps You Safe
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
The Dark Web’s Biggest Lie: Why “Legit CC Shops” Don’t Exist and What Actually Keeps You Safe
There’s a phrase circulating in shadowy corners of the internet that sounds almost reasonable if you don’t think too hard about it… Continue reading on Medium »
Stapler: 01 | VulnHub Walkthrough | By Aasrith
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Stapler: 01 | VulnHub Walkthrough | By Aasrith
At first, I have discovered the IP address of the target Machine using netdiscover as shown below. Continue reading on Medium »
The Silent Guardians: Inside the World of Cybersecurity Professionals
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
The Silent Guardians: Inside the World of Cybersecurity Professionals
In a world powered by technology, every click, transaction, and login leaves a digital footprint. From online banking and social media to… Continue reading on M
Implementing Chat End-to-End Encryption (E2EE): A Technical Guide to X3DH and Double Ratchet
Dev.to · Nexconn 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Implementing Chat End-to-End Encryption (E2EE): A Technical Guide to X3DH and Double Ratchet
Claims of "security" are everywhere, but very few chat APIs actually walk the walk. Most offerings...
How I built ZeroAudit — AI-powered SOC 2 compliance automation with AWS DynamoDB and Vercel
Dev.to · Dmytro Mazurenko 🔐 Cybersecurity ⚡ AI Lesson 1w ago
How I built ZeroAudit — AI-powered SOC 2 compliance automation with AWS DynamoDB and Vercel
SOC 2 Type II audits are painful. Auditors want evidence for 42 controls — who has access, are...
Lab 3: Blind OS Command Injection with Output Redirection — PortSwigger Web Security Academy…
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Lab 3: Blind OS Command Injection with Output Redirection — PortSwigger Web Security Academy…
Turning a silent vulnerability into a readable one: how redirecting command output into a public directory lets you read RCE results… Continue reading on Medium
Endpoint Security vs Endpoint Management: Understanding the Difference and Why Organizations Need…
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Endpoint Security vs Endpoint Management: Understanding the Difference and Why Organizations Need…
Modern organizations rely on hundreds of connected devices to support daily operations. Managing and securing those devices has become one… Continue reading on
Lab 2: Blind OS Command Injection with Time Delays — PortSwigger Web Security Academy Walkthrough…
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Lab 2: Blind OS Command Injection with Time Delays — PortSwigger Web Security Academy Walkthrough…
When the server stays silent: how to prove Remote Code Execution using nothing but a stopwatch and the Linux sleep command. Continue reading on Medium »