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 (10,941) Articles (5411)Blog Posts (4271)Tutorials (385)Research Papers (34)News (840)
I Built a Privacy-First PDF Toolbox — Your Files Never Leave the Browser
Dev.to · hwlsniper 🔐 Cybersecurity ⚡ AI Lesson 2w ago
I Built a Privacy-First PDF Toolbox — Your Files Never Leave the Browser
Every online PDF tool I've used uploads your documents to their servers. Tax returns, contracts,...
A free, 286-operation CyberChef alternative that runs 100% in your browser
Dev.to · Payload Playground 🔐 Cybersecurity ⚡ AI Lesson 2w ago
A free, 286-operation CyberChef alternative that runs 100% in your browser
I kept reaching for CyberChef for quick encode/decode/hash/crypto chains, but wanted something that...
Security Best Practices for Next.js and Supabase Applications
Dev.to · Mahdi BEN RHOUMA 🔐 Cybersecurity ⚡ AI Lesson 2w ago
Security Best Practices for Next.js and Supabase Applications
Comprehensive security guide for Next.js and Supabase applications. Learn RLS policies, secret management, API security, authentication hardening, and productio
Validating Open-Source Tool for Automating Incident Investigation in AWS/Azure Environments with On-Call Teams
Dev.to · Marina Kovalchuk 🔐 Cybersecurity ⚡ AI Lesson 2w ago
Validating Open-Source Tool for Automating Incident Investigation in AWS/Azure Environments with On-Call Teams
Introduction Incident investigation in AWS/Azure environments is a high-stakes race...
Arch Linux Supply Chain Malware, repo-slopscore & AI Model Security Concerns
Dev.to · soy 🔐 Cybersecurity ⚡ AI Lesson 2w ago
Arch Linux Supply Chain Malware, repo-slopscore & AI Model Security Concerns
Arch Linux Supply Chain Malware, repo-slopscore & AI Model Security Concerns ...
A safer OpenConnect workflow for Cisco AnyConnect VPNs on macOS and Linux
Dev.to · Sorin-Doru Ipate 🔐 Cybersecurity ⚡ AI Lesson 2w ago
A safer OpenConnect workflow for Cisco AnyConnect VPNs on macOS and Linux
A safer OpenConnect workflow for Cisco AnyConnect VPNs on macOS and Linux If your...
Building a Multi-Source Threat Intelligence Correlation Engine in Python
Dev.to · platinum2high 🔐 Cybersecurity ⚡ AI Lesson 2w ago
Building a Multi-Source Threat Intelligence Correlation Engine in Python
A SOC analyst's notes on going from "I want to learn async" to a working tool that other analysts...
How Myanmar Blocks Tailscale — and How to Beat It
Dev.to · mariatanbobo 🔐 Cybersecurity ⚡ AI Lesson 2w ago
How Myanmar Blocks Tailscale — and How to Beat It
Myanmar blocks Tailscale with a single SNI wildcard. The counter is a custom DERP relay on port 443. Here's how to build it — and what Tailscale should fix.
Splunk Enterprise CVE-2026-20253: Unauthenticated RCE via PostgreSQL Sidecar
Dev.to · Etairos.ai 🔐 Cybersecurity ⚡ AI Lesson 2w ago
Splunk Enterprise CVE-2026-20253: Unauthenticated RCE via PostgreSQL Sidecar
TL;DR what: CVE-2026-20253 in Splunk Enterprise versions below 10.0.7 and 10.2.4 exposes...
Encrypt your .env with AWS KMS: Secrets that never touch process.env
Dev.to · Faiz Ahmed Farooqui 🔐 Cybersecurity ⚡ AI Lesson 2w ago
Encrypt your .env with AWS KMS: Secrets that never touch process.env
A year ago I'd have told you a .env file was fine. Then we patched a CVSS 10.0 RCE in Next.js...
We scanned 10 well-known sites with our security tool. Here's what we found.
Dev.to · SecURL 🔐 Cybersecurity ⚡ AI Lesson 2w ago
We scanned 10 well-known sites with our security tool. Here's what we found.
Real external security posture data from gov.uk, NHS, BBC, Stripe, GitHub — scanned with SecURL's passive analysis engine.
Zero Trust for Home Labs: Bridging the Gap Between Enterprise and Enthusiast
Dev.to · Andrei Toma 🔐 Cybersecurity ⚡ AI Lesson 2w ago
Zero Trust for Home Labs: Bridging the Gap Between Enterprise and Enthusiast
Transition your home lab from a vulnerable 'castle-and-moat' setup to a robust Zero Trust Architecture using HookProbe's AI-native edge security and NAPSE engin
Translating CTF Experience Into a Resume Recruiters Actually Read
Dev.to · Izaz Ahamed 🔐 Cybersecurity ⚡ AI Lesson 2w ago
Translating CTF Experience Into a Resume Recruiters Actually Read
If you've put in the hours on TryHackMe or HackTheBox but still aren't getting callbacks, the problem...
P2pb2b.cc Took $9745.10 — Total Crypto Scam
Dev.to · P2pb2b.cc Took $9745.10 — Total Crypto Scam 🔐 Cybersecurity ⚡ AI Lesson 2w ago
P2pb2b.cc Took $9745.10 — Total Crypto Scam
P2pb2b.cc Took $9745.10 — Total Crypto Scam The cursor hovered heavily over the "Confirm Withdrawal"...
Kerberos Authentication Protocol
Dev.to · Aviral Srivastava 🔐 Cybersecurity ⚡ AI Lesson 2w ago
Kerberos Authentication Protocol
The Secret Handshake of the Digital Realm: Unpacking Kerberos Ever felt like your computer...
Iterative Security Audit: 45 Probes, 0 Critical, 6 Regression Tests Kept
Dev.to · Odilon HUGONNOT 🔐 Cybersecurity ⚡ AI Lesson 2w ago
Iterative Security Audit: 45 Probes, 0 Critical, 6 Regression Tests Kept
The pre-pentest audit in successive passes. How to verify findings before panicking, and how to select which probes become permanent regression tests.
One CVE, four ignore files: unifying Trivy, Grype, Snyk and osv-scanner
Dev.to · opscanopy 🔐 Cybersecurity ⚡ AI Lesson 2w ago
One CVE, four ignore files: unifying Trivy, Grype, Snyk and osv-scanner
You triaged the CVE. A scanner flagged CVE-2023-45853 in zlib, you read the advisory, confirmed the...
TokenIsMoney: Personal Token Issuance Tool with Built-in 2FA, Journal, Tasks & More
Dev.to · sx lin 🔐 Cybersecurity ⚡ AI Lesson 2w ago
TokenIsMoney: Personal Token Issuance Tool with Built-in 2FA, Journal, Tasks & More
TokenIsMoney: A Free Browser-Based Google Authenticator Alternative with...
Secrets Sprawl: How We Cleaned Up 412 Leaked Tokens in One Weekend
Dev.to · isabelle dubuis 🔐 Cybersecurity ⚡ AI Lesson 2w ago
Secrets Sprawl: How We Cleaned Up 412 Leaked Tokens in One Weekend
When a CI job in March 2023 printed a 32‑character GitHub token to stdout, we discovered 412 leaked...
How to Automate SOC2 and GDPR Compliance Scans with ComplianceWeave
Dev.to · Ahmed Moussa 🔐 Cybersecurity ⚡ AI Lesson 2w ago
How to Automate SOC2 and GDPR Compliance Scans with ComplianceWeave
My Creative Interpretation: "The Audit Horror Story" Narrative Frame Rather than a dry...
TryHackMe - VulnNet Writeup
Dev.to · Yogeshwar Peela 🔐 Cybersecurity ⚡ AI Lesson 2w ago
TryHackMe - VulnNet Writeup
Platform: TryHackMe Difficulty: Medium Reconnaissance Nmap nmap -sC -sV -A...
Over 400 Arch Linux AUR Packages Hijacked to Deploy Infostealer and eBPF Rootkit
Dev.to · Etairos.ai 🔐 Cybersecurity ⚡ AI Lesson 2w ago
Over 400 Arch Linux AUR Packages Hijacked to Deploy Infostealer and eBPF Rootkit
TL;DR what: Attackers hijacked over 400 Arch User Repository packages by adopting...
From 70 CVEs to 0: a hands-on VEX suppression workflow with Trivy (and a path to Wiz)
Dev.to · DarkEdges 🔐 Cybersecurity ⚡ AI Lesson 2w ago
From 70 CVEs to 0: a hands-on VEX suppression workflow with Trivy (and a path to Wiz)
Run Trivy against almost any vendor container image and you'll get a wall of findings. Most of them...
LFI vs RFI: Key Differences, Examples, and Prevention Best Practices for 2026
Dev.to · Andrew 🔐 Cybersecurity ⚡ AI Lesson 2w ago
LFI vs RFI: Key Differences, Examples, and Prevention Best Practices for 2026
If you’ve ever worked on web application security, you’ve almost certainly heard of file inclusion...
+400 pacotes AUR foram comprometidos: Atomic Arch
Dev.to · Aglair 🔐 Cybersecurity ⚡ AI Lesson 2w ago
+400 pacotes AUR foram comprometidos: Atomic Arch
Dia 11 de junho de 2026 (ontem), um atacante assumiu o controle de mais de 400 pacotes do Arch User...
CRTA Exam Writeup — Passed | CyberWarFare Labs
Dev.to · Shikhali Jamalzade 🔐 Cybersecurity ⚡ AI Lesson 3w ago
CRTA Exam Writeup — Passed | CyberWarFare Labs
Introduction The CRTA exam by CyberWarFare Labs is a fully hands-on, black-box red team assessment....
Debuggix vs Snyk vs Semgrep vs GitHub Advanced Security: A 100-Repo Technical Comparison
Dev.to · Lucky 🔐 Cybersecurity ⚡ AI Lesson 3w ago
Debuggix vs Snyk vs Semgrep vs GitHub Advanced Security: A 100-Repo Technical Comparison
We ran four security platforms on the same 100 repositories. Here is the raw data on detection rates,...
I built a 9-layer autonomous cyber defense system with post-quantum signatures
Dev.to · conchaestradamiguelangel-droid 🔐 Cybersecurity ⚡ AI Lesson 3w ago
I built a 9-layer autonomous cyber defense system with post-quantum signatures
TL;DR AEGIS is a 9-layer autonomous cyber defense system.
Stop letting PBQs eat the first 15 minutes of your Security+ exam
Dev.to · TiltedLunar123 🔐 Cybersecurity ⚡ AI Lesson 3w ago
Stop letting PBQs eat the first 15 minutes of your Security+ exam
If you ask people what scared them most going into the Security+ exam, you hear the same answer over...
Agentjacking: AI Coding Agents Tricked Into Running Malicious Code via Sentry Injection
Dev.to · Etairos.ai 🔐 Cybersecurity ⚡ AI Lesson 3w ago
Agentjacking: AI Coding Agents Tricked Into Running Malicious Code via Sentry Injection
TL;DR what: Attackers inject crafted markdown into Sentry error events that AI coding...
Um resumo sobre o padrão de segurança HMAC
Dev.to · Determinado 96 🔐 Cybersecurity ⚡ AI Lesson 3w ago
Um resumo sobre o padrão de segurança HMAC
Definição O HMAC (Hash-based Message Authentication Code) é um mecanismo de segurança que...
163 Brands Hijacked Through Abandoned DNS Delegations: Inside the Borrowed Trust Campaign
Dev.to · Kishore Bhavnanie 🔐 Cybersecurity ⚡ AI Lesson 3w ago
163 Brands Hijacked Through Abandoned DNS Delegations: Inside the Borrowed Trust Campaign
163 organizations across more than 30 countries had gambling content served under their own trusted...
Cybersecurity Weekly Series: Email Security Beyond Spam Filters (2026)
Dev.to · Cyber Safety Zone 🔐 Cybersecurity ⚡ AI Lesson 3w ago
Cybersecurity Weekly Series: Email Security Beyond Spam Filters (2026)
Email remains the #1 entry point for cyberattacks targeting small businesses. Most teams believe a...
Signal vs Telegram: The Privacy Illusion You Need to Understand
Dev.to · Sam Chen 🔐 Cybersecurity ⚡ AI Lesson 3w ago
Signal vs Telegram: The Privacy Illusion You Need to Understand
Episode “64”: The Glitch in the System – What Telegram’s Leak Means for Your Privacy In...
Your Smart TV Is Watching You: How to Shut It Down
Dev.to · Sam Chen 🔐 Cybersecurity ⚡ AI Lesson 3w ago
Your Smart TV Is Watching You: How to Shut It Down
Episode 84: When the TV Listens – A Family‑First Guide to Protecting Your Home’s...
DNS Cache Poisoning Explained (and How DNSSEC Stops It)
Dev.to · Kishore Bhavnanie 🔐 Cybersecurity ⚡ AI Lesson 3w ago
DNS Cache Poisoning Explained (and How DNSSEC Stops It)
Imagine asking a trusted librarian for directions to a specific address, and an imposter slips in to...
Web Security: OWASP Top 10 — Practical Defense Guide (2026)
Dev.to · Alex Chen 🔐 Cybersecurity ⚡ AI Lesson 3w ago
Web Security: OWASP Top 10 — Practical Defense Guide (2026)
Web Security: OWASP Top 10 — Practical Defense Guide (2026) Security vulnerabilities...
How I Hacked My Own GPG Key: A Developer's Forensic War Story
Dev.to · freerave 🔐 Cybersecurity ⚡ AI Lesson 3w ago
How I Hacked My Own GPG Key: A Developer's Forensic War Story
I forgot my GPG passphrase mid-release. Instead of generating a new key, I treated it as a...
Bitwarden Vs 1Password Security Audit 2025
Dev.to · Sam Chen 🔐 Cybersecurity ⚡ AI Lesson 3w ago
Bitwarden Vs 1Password Security Audit 2025
Bitwarden vs 1Password: A 2025 Security Audit Deep‑Dive Welcome back, fellow glitch hunters....
How To Detect Stalkerware On Phone
Dev.to · Sam Chen 🔐 Cybersecurity ⚡ AI Lesson 3w ago
How To Detect Stalkerware On Phone
How To Detect Stalkerware On Your Phone – A Glitch Investigator’s Field Guide Welcome back...
Audit Trails Make Systems Easier to Trust
Dev.to · WebmasterID 🔐 Cybersecurity ⚡ AI Lesson 3w ago
Audit Trails Make Systems Easier to Trust
Audit Trails Make Systems Easier to Trust is a practical operating principle, not a slogan. The...
The Dependency Security Workflow Your Node.js Project Is Missing
Dev.to · Raju Dandigam 🔐 Cybersecurity ⚡ AI Lesson 3w ago
The Dependency Security Workflow Your Node.js Project Is Missing
Why local, lockfile-aware scanning gives JavaScript teams a more practical path from discovery to...
The 2026 Wireless Threat Nobody Prepared For: UWB Hacking, Relay Attacks, and Proximity Crimes
Dev.to · v. Splicer 🔐 Cybersecurity ⚡ AI Lesson 3w ago
The 2026 Wireless Threat Nobody Prepared For: UWB Hacking, Relay Attacks, and Proximity Crimes
Look. I’ve been breaking things since before it was normal for kids to have phones. I watched the...
Cybersecurity with Python, what beginners should actually build
Dev.to · I Want To Learn Programming 🔐 Cybersecurity ⚡ AI Lesson 3w ago
Cybersecurity with Python, what beginners should actually build
Forget memorizing tools. The way to learn security is to build the primitives yourself, encoding, hashing, HMAC, a log parser, and a tamper check, so you unders
We Audited the Viral 213k-Star "Everything Claude Code" Repo — and Found a Malware Clone in the Wild
Dev.to · Jörg Michno 🔐 Cybersecurity ⚡ AI Lesson 3w ago
We Audited the Viral 213k-Star "Everything Claude Code" Repo — and Found a Malware Clone in the Wild
affaan-m/ECC — better known as Everything Claude Code — has over 213,000 GitHub stars, making it one...
Think Like an Attacker: How I Use @security-auditor Before Every Production Deploy
Dev.to · Abhishek Pandit 🔐 Cybersecurity ⚡ AI Lesson 3w ago
Think Like an Attacker: How I Use @security-auditor Before Every Production Deploy
Security isn't a checklist you run at the end. I use a Copilot agent that starts from trust boundaries, runs STRIDE threat modeling, maps findings to OWASP Top
What DBSC Does and Doesn't Protect You From
Dev.to · Suliman Abdulrazzaq 🔐 Cybersecurity ⚡ AI Lesson 3w ago
What DBSC Does and Doesn't Protect You From
Device Bound Session Credentials kill remote cookie theft. They don't stop in-browser malware, they don't cover PRTs or Kerberos tickets, and the polyfill tier
Implementing Device Bound Session Credentials (DBSC) on Express
Dev.to · Suliman Abdulrazzaq 🔐 Cybersecurity ⚡ AI Lesson 3w ago
Implementing Device Bound Session Credentials (DBSC) on Express
Chrome 146 shipped DBSC to stable. Here's how to bind your session cookies to the user's hardware key on an Express server — and the wire-format details that si