Tech Skills

Cybersecurity

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

17,993
lessons
Skills in this topic
View full skill map →
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 (11,084) Articles (5497)Blog Posts (4303)Tutorials (409)Research Papers (34)News (841)
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 »
How to Translate Cyber Risk Into Business Impact
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
How to Translate Cyber Risk Into Business Impact
A board-level way to turn security findings into decisions about downtime, dollars, trust, and legal exposure. Continue reading on Medium »
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
What Are the Benefits of User Activity Monitoring Software for Organizations?
How can businesses protect sensitive data, improve employee productivity, and reduce security risks without disrupting daily operations? Continue reading on Med
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Attack Surface Management: A Complete Guide to Modern Cybersecurity
Organizations today operate in a highly connected digital environment where websites, cloud services, mobile applications, remote work… Continue reading on Medi
Software Supply Chain Security (SLSA)
Dev.to · Aviral Srivastava 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Software Supply Chain Security (SLSA)
Fortifying the Foundation: Navigating the Wild World of Software Supply Chain Security...
I Stopped Treating ZTE Router Firmware Like a Blob and Started Treating It Like a Map
Medium · Python 🔐 Cybersecurity ⚡ AI Lesson 1w ago
I Stopped Treating ZTE Router Firmware Like a Blob and Started Treating It Like a Map
The thing that makes router research feel slow is not always the crypto or the reversing. A lot of the time it is the fact that the device… Continue reading on
Sayı İstasyonları ve Mikronokta Esinli Dijital Göstergeler: İstihbarat Haberleşmesinde Kriptografi…
Medium · Python 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Sayı İstasyonları ve Mikronokta Esinli Dijital Göstergeler: İstihbarat Haberleşmesinde Kriptografi…
Bir mesajı şifrelemek, onu güvenli hâle getirmek için her zaman yeterli değildir. Continue reading on Medium »
The Security Bug Every Node.js Developer Ships to Production
Dev.to · Lolo 🔐 Cybersecurity ⚡ AI Lesson 1w ago
The Security Bug Every Node.js Developer Ships to Production
Last year I was doing a code review for a startup. Everything looked fine on the surface, clean code,...
Digital ID brain trust will meet behind closed doors as minister ducks cost questions
The Register 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Digital ID brain trust will meet behind closed doors as minister ducks cost questions
Minutes will not be published, and MPs still have no answer on the group's budget or how its members were chosen
Secrets sprawl: how we cleaned up 412 leaked tokens and stopped the latency bleed
Dev.to · isabelle dubuis 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Secrets sprawl: how we cleaned up 412 leaked tokens and stopped the latency bleed
When a CI pipeline failed at 02:13 AM on March 3, we discovered that 412 distinct API tokens had been...
Flutter Developer + Cyber Security = A More Powerful You
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Flutter Developer + Cyber Security = A More Powerful You
Why doing both is not confusion — it’s your biggest competitive edge Continue reading on Medium »
Reddit r/cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Are HackTheBox & TryHackMe Certificates actually recognised by employers?
Currently doing a three year computer science bachelors with a major in cybersecurity and I’ve been looking into HackTheBox and TryHackMe for some extra work du
Why your reCAPTCHA v3 score is low — and how to actually raise it
Dev.to · Bassem Shahin 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Why your reCAPTCHA v3 score is low — and how to actually raise it
reCAPTCHA v3 doesn't show a puzzle — it scores your whole session 0.0–1.0. Here's what actually drives a low score (IP, fingerprint, behavior) and how to raise
Data Encryption Solution: Why It Matters for Modern Cybersecurity
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Data Encryption Solution: Why It Matters for Modern Cybersecurity
In today’s digital economy, data has become one of the most valuable assets for any organization. From customer records and financial… Continue reading on Mediu
The Internet’s Dirty Little Secret: Anyone Can Investigate Anyone — and Here Are 20 Free Tools to…
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
The Internet’s Dirty Little Secret: Anyone Can Investigate Anyone — and Here Are 20 Free Tools to…
What spies, FBI agents, and your nosy neighbor all have in common — and how you can join the club for $0. Continue reading on Medium »
Breaking Into Cybersecurity in 2026 — A Series (Part IV: Get In The Room)
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Breaking Into Cybersecurity in 2026 — A Series (Part IV: Get In The Room)
Welcome back — this is Part IV and the final piece of the series. Continue reading on MeetCyber »
Security Mistakes Every Full Stack Developer Makes (And How AI Caught Mine)
Medium · JavaScript 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Security Mistakes Every Full Stack Developer Makes (And How AI Caught Mine)
I thought my code was secure. An AI security review disagreed — and it was right. Continue reading on Medium »
Building Trust Into Authentication: Practical Access Control Patterns for Modern Apps
Dev.to · Samiat Akande 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Building Trust Into Authentication: Practical Access Control Patterns for Modern Apps
Most apps think they are secure because they have login pages. But authentication is only the first...
Before You Hack Anything — How Penetration Testers Define Scope and Rules of Engagement
Dev.to · Khalif AL Mahmud 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Before You Hack Anything — How Penetration Testers Define Scope and Rules of Engagement
Most people think penetration testing starts with running tools — Nmap, Metasploit, Burp Suite. But...
Why Your Browser Should Do the Heavy Lifting: A Guide to Local Data Sanitization
Dev.to · will.indie 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Why Your Browser Should Do the Heavy Lifting: A Guide to Local Data Sanitization
Stop Uploading Your Sensitive Data to Sketchy Websites Just to Trim a File If you have...
Monorepo Dependency Security — Vulnerability Scanning Across Packages
Dev.to · Vulert 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Monorepo Dependency Security — Vulnerability Scanning Across Packages
A monorepo can look like one repository, but security teams should treat it as many applications...