Tech Skills
Cybersecurity
Ethical hacking, penetration testing, network security, CTFs and defensive security
Skills in this topic
8 skills — Sign in to track your progress
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

Dev.to · Vulert
🔐 Cybersecurity
⚡ AI Lesson
2w ago
How to Set Up Jira for Vulnerability Management: A Complete Workflow
Many teams know they have vulnerabilities. They scan repositories, receive security alerts, review...

Dev.to · TiltedLunar123
🔐 Cybersecurity
⚡ AI Lesson
3w ago
I built an offline threat-hunting CLI in python because spinning up a SIEM for one log file is overkill
so here's the situation i kept running into while studying for security+ and messing with sample log...

Dev.to · Kouadio mathias Kouame
🔐 Cybersecurity
⚡ AI Lesson
3w ago
Your HTTP Headers Are a Security Report Card — This Free Tool Grades Them Instantly
If you run a website, your HTTP response headers are the first thing a browser sees before it renders...

Dev.to · 우병수
🔐 Cybersecurity
⚡ AI Lesson
3w ago
AI Coding Tools Are Now a CVSS 10.0 CI/CD Supply Chain Vector — What to Patch and What to Audit
Explore how AI coding tools like Cursor and Gemini CLI pose new security risks as privileged CI agents. Learn what to patch and audit in your development enviro

Dev.to · benjamin
🔐 Cybersecurity
⚡ AI Lesson
3w ago
A zero-dep CLI that scans your GitHub Actions for the mistakes that actually get repos compromised
Your CI workflow is the softest target in your repo. It runs automatically, it has a GITHUB_TOKEN...

Dev.to · vshosting
🔐 Cybersecurity
⚡ AI Lesson
3w ago
What happens inside a data center during a large-scale power outage
A large-scale power outage is one of the most practical tests of data center resilience. It does not...

Dev.to · ricco020
🔐 Cybersecurity
⚡ AI Lesson
3w ago
Why Math.random() is unsafe for passwords — and how to use crypto.getRandomValues instead
Why Math.random() Is Unsafe for Passwords — and How to Use crypto.getRandomValues...

Dev.to · Adam
🔐 Cybersecurity
⚡ AI Lesson
3w ago
Backdoored npm, Stolen Tokens, and VoidZero Soars
Red Hat's npm channel got backdoored — yes, the official one — so if your dependency hygiene was...

Dev.to · Indra Gusti Prasetya
🔐 Cybersecurity
⚡ AI Lesson
3w ago
GreatXML BitLocker Bypass Means TPM-Only Is the Bug
An unpatched WinRE exploit, GreatXML, bypasses BitLocker on any Windows 11 machine that ran a Defender offline scan. The fix is TPM+PIN, not a patch.

Dev.to · Etairos.ai
🔐 Cybersecurity
⚡ AI Lesson
3w ago
ShinyHunters Exploits Oracle PeopleSoft Zero-Day (CVE-2026-35273) to Breach 100+ Universities
TL;DR what: ShinyHunters exploited CVE-2026-35273, an unauthenticated remote code...

Dev.to · Shrestha Pandey
🔐 Cybersecurity
⚡ AI Lesson
3w ago
AI Created Its First Real Cyber Attack And It Bypassed 2FA
For the first time, AI has been used to exploit a software vulnerability. Google discovered it in May...

Dev.to · Tonal Mathew
🔐 Cybersecurity
⚡ AI Lesson
3w ago
Strict CSP Meets Prerendered HTML: A Next.js App Router Deep Dive
What started as a simple security hardening task on a Next.js 16 marketing site turned into a lesson...

Dev.to · BeyondMachines
🔐 Cybersecurity
⚡ AI Lesson
3w ago
Oracle Issues Emergency Patch for Critical PeopleSoft Code Injection Flaw
Oracle issued an emergency patch for a critical code injection vulnerability (CVE-2026-35273, CVSS 9.8) in PeopleSoft Enterprise PeopleTools that allows unauthe

Dev.to · Toni Antunovic
🔐 Cybersecurity
⚡ AI Lesson
3w ago
Miasma Worm: How Opening a Repo in Claude Code Became a Credential Theft Vector
The Miasma worm planted .claude/settings.json and .gemini/settings.json files in 73 Microsoft GitHub repositories to harvest cloud credentials the moment a deve

Dev.to · Max
🔐 Cybersecurity
⚡ AI Lesson
3w ago
Why Math.random() Is a Security Bug in Password Generators (and the Web Crypto Fix)
Math.random() passwords are crackable from 64-128 outputs. crypto.getRandomValues() fixes it - plus the modulo-bias and 64KB quota gotchas that bite DIY fixes.

Dev.to · Spicy
🔐 Cybersecurity
⚡ AI Lesson
3w ago
What a VPN Actually Does (And Why Most Devs Use It Wrong)
Every developer I know has a VPN. Most of them have it running while they're logged into Google,...

Dev.to · Yogeshwar Peela
🔐 Cybersecurity
⚡ AI Lesson
3w ago
HackTheBox - Abducted Writeup
Difficulty: Medium OS: Linux Reconnaissance Nmap nmap -sC -sV -A...

Dev.to · josepraveen
🔐 Cybersecurity
⚡ AI Lesson
3w ago
Hands-On AWS Security Lab: Detecting and Remediating Vulnerabilities with Amazon Inspector, Security Hub, and Systems Manager
Security is a shared responsibility in AWS, and one of the most important skills for cloud engineers...

Dev.to · arcker
🔐 Cybersecurity
⚡ AI Lesson
3w ago
TLS 1.3 without a library — a real browser does the handshake against Verbose machine code
A real browser opens an HTTPS page served by a binary whose every cryptographic transform — key exchange, signature, encryption, hash — is machine code emitted

Dev.to · ricco020
🔐 Cybersecurity
⚡ AI Lesson
3w ago
Detecting WebRTC IP leaks in the browser: how it works and how to test it
WebRTC is a powerful browser API for real-time audio, video, and data communication. But there's a...

Dev.to · Spicy
🔐 Cybersecurity
⚡ AI Lesson
3w ago
Passkeys Under the Hood: What's Actually Happening When You Use Face ID to Log In
Passwords fail because they get transmitted and stored. Passkeys don't. Here's the WebAuthn flow, the crypto behind it, and how to implement it — with real code

Dev.to · Joel Amos
🔐 Cybersecurity
⚡ AI Lesson
3w ago
Fraud-as-a-Service: How Financial Crime Evolved into a Digital Industry
Fraud-as-a-Service (FaaS) should ideally not exist. Yet it does. This is the story of money...

Dev.to · Aviral Srivastava
🔐 Cybersecurity
⚡ AI Lesson
3w ago
PASETO: Safer Tokens
PASETO: Say Goodbye to JWT Nightmares, Hello to Safer Tokens! Ever found yourself staring...

Dev.to · Nevik Schmidt
🔐 Cybersecurity
⚡ AI Lesson
3w ago
GDPR compliance for web devs: A practical technical guide (2026 edition with code examples)
Originally written for r/webdev on Reddit — sharing here for the dev.to community. I'm a developer...

Dev.to · Nevik Schmidt
🔐 Cybersecurity
⚡ AI Lesson
3w ago
Launched a free DSGVO compliance scanner — scanned 200+ sites, 73% had violations
Originally written for r/SideProject on Reddit — sharing here for the dev.to community. TL;DR:...

Dev.to · Guatu
🔐 Cybersecurity
⚡ AI Lesson
3w ago
Network Policies with Calico: Default Deny and Namespace Isolation
Rolling out default-deny NetworkPolicies and namespace isolation with Calico without breaking DNS, ingress, or admission webhooks.

Dev.to · Ayi NEDJIMI
🔐 Cybersecurity
⚡ AI Lesson
3w ago
Vault vs AWS Secrets Manager vs Doppler: Secrets Management Compared
Hardcoded credentials in source code remain one of the leading causes of cloud breaches. The fix...

Dev.to · BeyondMachines
🔐 Cybersecurity
⚡ AI Lesson
3w ago
Arm Discloses Critical Privilege Escalation Vulnerability Affecting Neoverse and Cortex CPUs
Arm reports a critical privilege escalation vulnerability (CVE-2025-10263) affecting multiple CPU cores, including Neoverse and Cortex models, due to a timing f

Dev.to · Anakin
🔐 Cybersecurity
⚡ AI Lesson
3w ago
A safer pattern for authenticated automation: vault-backed sessions
How to run authenticated browser automation without storing user passwords, using a vault, short-lived reads, sessions, and audit logs.

Dev.to · TiltedLunar123
🔐 Cybersecurity
⚡ AI Lesson
3w ago
Practice exams are a diagnostic, not a scoreboard: how to study for Security+ (SY0-701)
Most people studying for Security+ use practice questions the wrong way. They take a 90 question set,...

Dev.to · Lucky
🔐 Cybersecurity
⚡ AI Lesson
3w ago
The 2026 State of GitHub Security: What 100 Repos Taught Me About Dependency CVEs and AI Code
Introduction Three months ago, I started an experiment. I took 100 GitHub repositories some huge,...

Dev.to · Hamza
🔐 Cybersecurity
⚡ AI Lesson
3w ago
50 days Left! - Submit a challenge for AppSec Village at DEF CON 34.
There are 50 days remaining to submit a challenge for the SecDim "Fix the Flag" competition at AppSec...

Dev.to · Battle Hardened
🔐 Cybersecurity
⚡ AI Lesson
3w ago
Why Compliance Security and Engineering Security Talk Past Each Other
There is a conversation that happens in security teams constantly, and it almost never goes anywhere...

Dev.to · Mark0
🔐 Cybersecurity
⚡ AI Lesson
3w ago
China-linked JDY botnet expands targeting of U.S. military networks
The JDY botnet, a scanning and reconnaissance network linked to Chinese threat actors such as Volt...

Dev.to · Jayesh Shinde
🔐 Cybersecurity
⚡ AI Lesson
3w ago
Stop Using IAM Access Keys: Secure Cross-Cloud Workloads with OIDC Federation
As developers and DevOps engineers, we’ve all been there. You have an external service—maybe an Azure...

Dev.to · Deva
🔐 Cybersecurity
⚡ AI Lesson
3w ago
Autonomous Mastodon Onboarding Hits the hCaptcha Wall
App OAuth bypasses the signup captcha but not the email confirmation interstitial. That one sentence...

Dev.to · Andrew
🔐 Cybersecurity
⚡ AI Lesson
3w ago
What is Data Encryption? A Complete 2026 Guide for Developers & Security Teams
Imagine you lose your work laptop on a commute. It holds 3 years of customer PII, internal product...

Dev.to · Akshat Tiwari
🔐 Cybersecurity
⚡ AI Lesson
3w ago
How I Hunted a Meterpreter C2 Session Using Sysmon
Introduction The attacker was already inside. A reverse shell was open, a flag file had...

Dev.to · Olga Larionova
🔐 Cybersecurity
⚡ AI Lesson
3w ago
Windows 0-Day Exploit Released by Nightmare-Eclipse on Self-Hosted Repository to Avoid Takedown
Introduction: Nightmare-Eclipse Exposes Critical Windows 0-Day Vulnerability The recent...
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Dev.to · Tom Denniston
🔐 Cybersecurity
⚡ AI Lesson
3w ago
[Boost]
Securing PostgreSQL, in the order an attacker would try things ...

Dev.to · Sanskriti Harmukh
🔐 Cybersecurity
⚡ AI Lesson
3w ago
Deploying Pi-hole DNS Sinkhole Service on Ubuntu 24.04
Pi-hole is a network-level ad and tracker blocking application that acts as a DNS sinkhole, returning...

Dev.to · Sanskriti Harmukh
🔐 Cybersecurity
⚡ AI Lesson
3w ago
Deploying AdGuard Home Network Traffic Filtering on Ubuntu 24.04
AdGuard Home is an open-source, network-wide ad and tracker blocking DNS server with a web dashboard,...

Dev.to · Sergey Boyarchuk
🔐 Cybersecurity
⚡ AI Lesson
3w ago
Rust Crate 'onering' Compromised: Malicious Code Exfiltration Risk Mitigated with Updated Version
Introduction and Background The Rust ecosystem, celebrated for its memory safety and...

Dev.to · beefed.ai
🔐 Cybersecurity
⚡ AI Lesson
3w ago
Zero-Trust Architecture Across Multiple Clouds
Implement a zero-trust model across clouds: federated identity (SAML/OIDC), microsegmentation, encryption-in-transit, and continuous policy enforcemen

Dev.to · Arjuna Nayak
🔐 Cybersecurity
⚡ AI Lesson
3w ago
Stop sharing .env files in Discord. I built a zero-setup, E2E encrypted CLI instead.
Sharing environment variables during a quick project hand-off shouldn't require setting up a heavy...

Dev.to · Pavel Espitia
🔐 Cybersecurity
⚡ AI Lesson
3w ago
Foundry Invariant Testing: Finding Bugs Fuzzing Can't
Your fuzz tests pass. Your unit tests pass. Coverage is green. Then the protocol goes live and...

Dev.to · Arashad Dodhiya
🔐 Cybersecurity
⚡ AI Lesson
3w ago
Why Developers Should Never Leave Backup Files on Production Servers
As I continue learning web application security, I keep discovering that many serious vulnerabilities...

Dev.to · SULIAT
🔐 Cybersecurity
⚡ AI Lesson
3w ago
How to Secure Azure Files and Blob Storage Using Managed Identities.
INTRODUCTION Keeping cloud storage safe means more than just setting a password. When...
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