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 · Ofri Peretz
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
Math.random() Is Not Random Enough. I Found It Building API Keys in a 57K-Star Repo.
Math.random() is a PRNG, not a CSPRNG. An attacker who observes a few samples can predict every future output. I found this exact pattern generating production

Dev.to · Regő Botond Ronyecz
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
ISO 27001 Annex A and Email Security: A Simple Gap Analysis Guide
Your ISMS is certified. Your Statement of Applicability covers the controls. Your auditor arrives and...

Dev.to · Regő Botond Ronyecz
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
NIS2 Compliance for Small Businesses: The Ultimate 2026 Checklist
NIS2 enforcement started in October 2024. There is no grace period. There is no "we're working on it"...

Dev.to · jordanricky1604-ship-it
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
I open-sourced a Malware Families Catalog built on EMBER 2018
What it is I just released an open-source dataset that maps EMBER 2018 malware family...

Dev.to · Habdul Hazeez
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
Security news weekly round-up - 29th May 2026
Learn about the top cybersecurity news between May 22, 2026, and May 29, 2026. Read now and increase your cybersecurity knowledge.

Dev.to · Security Cyber
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
The Zero-Day Lie
The word zero day gets thrown around in cybersecurity like confetti. Every other week there is a new...

Dev.to · Security Cyber
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
Chrome 148 Update Patches 151 Vulnerabilities: What Security Teams Need to Know
Chrome 148 Update Patches 151 Vulnerabilities Here is what security teams need to know...

Dev.to · Oleksii Antoniuk
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
Through the Looking Glass of Logs: Karachi Police, DuckDuckGo, and IPv6 Magic
Remember when I said reality turned out to be harsher? When you open the logs of a custom-built...

Dev.to · BeyondMachines
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
Brisbane Accounting Firm Kennedy McLaughlin Confirms Cyber Incident Following Qilin Ransomware Claim
Kennedy McLaughlin & Associates, an Australian accounting firm, confirmed a data breach after the Qilin ransomware group published stolen client financial recor

Dev.to · Security Cyber
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
Gogs Zero-Day Exposes Servers to Remote Code Execution: What Security Teams Need to Know
Gogs Zero-Day Exposes Servers to Remote Code Execution This is worth understanding,...

Dev.to · engr anees
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
Your JWT decoder might be leaking your tokens. Here's how to check.
Most developers paste production JWTs into online decoders without thinking. Here's a 10-second...

Dev.to · Mustafa Salih Berk
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
ShadowLab: Building a Python C2 Prototype for Security Labs (V1.3)
I built ShadowLab: A modular, Python-based C2 framework designed for security research and offensive...

Dev.to · Security Cyber
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
Patch Tuesday, May 2026 Edition: What Security Teams Need to Know
Patch Tuesday, May 2026 Edition Artificial intelligence platforms may be just as...

Dev.to · Security Cyber
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
Lawmakers Demand Answers as CISA Tries to Contain Data Leak: What Security Teams Need to Know
Lawmakers Demand Answers as CISA Tries to Contain Data Leak Lawmakers in both houses of...

Dev.to · Cyber Safety Zone
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
Cybersecurity Weekly Series #12: Are You Liable If a Client Gets Hacked?
Many freelancers believe cybersecurity is only the client’s responsibility. That’s a dangerous...

Dev.to · Security Cyber
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
ThreatsDay Bulletin: Claude Security Plugin, Azure Priv-Esc, Kali365 MFA Bypass, FIFA Scams +15 More: What Security Teams Need to Know
ThreatsDay Bulletin: Claude Security Plugin, Azure Priv-Esc, Kali365 MFA Bypass, FIFA Scams...

Dev.to · Aamir Sahil
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
Why Traditional Website Malware Scanners Miss SEO Spam
Most website owners believe their site is clean because their hosting provider, WordPress security...

Dev.to · Sulaiman Olubiyi
🔐 Cybersecurity
1mo ago
Stop Overpaying for Cloud Networking: Build a Single Egress IP over Site-to-Site VPN
Cloud-native doesn’t always mean cloud-managed. Managed gateways promise a “set-and-forget”...

Dev.to · Security Cyber
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
Threat Actors Exploit Critical FortiClient EMS Flaw to Deploy Credential Stealer: What Security Teams Need to Know
Threat Actors Exploit Critical FortiClient EMS Flaw to Deploy Credential Stealer Threat...

Dev.to · Security Cyber
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
Critical Gogs RCE Vulnerability Lets Any Authenticated User Execute Arbitrary Code: What Security Teams Need to Know
Critical Gogs RCE Vulnerability Lets Any Authenticated User Execute Arbitrary Code A...

Dev.to · Matt Keib, Tech Ed
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
Secure Remote Access in 2026: VPNs, ZTNA, Bastion Hosts, Privileged Access Gateways, and the Identity-Based Alternative
Count the systems controlling who can access your production infrastructure. In most environments,...

Dev.to · Cor E
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
Malicious npm Package Targeted Claude's /mnt/user-data Directory — Here's What Agentic Pipelines Are Missing
A malicious npm package named mouse5212-super-formatter showed up on the npm registry last month with...

Dev.to · Muhammad Ikhwan Fathulloh
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
Secure Your Microservices: Meet Halimun, the High-Performance Encrypted Proxy
Meet Halimun Proxy a high-performance, ultra-low latency proxy tunnel system built from the ground...

Dev.to · Gal Shalom
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
Why Employee Offboarding Is Your Biggest Security Risk
Most SMBs discover offboarding gaps only after something goes wrong. Here's why ex-employee access is your biggest security blind spot — and how to fix it.

Dev.to · Stanley A.
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
Two Retailers, One Attack: What Really Decides Who Survives a Breach
In April 2025, two of Britain's most recognized retailers were hit by the same adversary, using the...

Dev.to · Qimin Zhao
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
How to investigate suspicious SSH logins without giving AI a shell
A lot of Linux incident response starts with a login question, not a malware sample. Someone sees a...

Dev.to · Iurii Rogulia
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
What “Inconclusive” Really Means: A Guide to Understanding HTPBE? Detection Results
Getting an “inconclusive” result from HTPBE? isn’t a failure — it’s actionable intelligence. This guide explains all three verdicts and how to turn every…

Dev.to · BeyondMachines
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
Critical Unpatched RCE Vulnerability Discovered in Gogs Git Service
Gogs is reported to have a critical unpatched authenticated RCE vulnerability (CVSS 9.4) that allows users to execute arbitrary code via malicious branch names

Dev.to · Andrei Corpo
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
How I Built an AWS Cloud Security Project as a University Student
When most CS students are building simple CRUD apps for their thesis, I decided to go a different...

Dev.to · GoldenGlobalHawks
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
Event security permit compliance in Toronto: what operators and security platform builders need to know
Ontario PSISA compliance for Toronto events — operator licensing, SMP requirements, timelines, and the documentation gaps that kill permit applications.

Dev.to · will.indie
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
Stop Uploading Your Private Files: The Case for Local-First File to JPG Conversion
We need to talk about your data handling habits. Seriously, stop sending your sensitive...

Dev.to · Suraj Pun Magar
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
My First Cybersecurity Writeup – VAPT Experience
Overview This is my first real-world cybersecurity VAPT experience inside an enterprise...

Dev.to · Mahima Thacker
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
They Lost Millions by Clicking ‘Sign’ - Here’s How to Never Make That Mistake
Picture this: You're the treasurer of a major crypto exchange. Your phone buzzes with a notification...

Dev.to · david ayala
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
MSF-Assistant: herramienta web de pentesting con Metasploit, nmap y msfvenom en Kali Linux
El problema que quería resolver Aprender pentesting con Metasploit tiene una curva de...

Dev.to · Stefan Iancu
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
A self-hosted Google reCAPTCHA alternative (we ship it)
You know the one. You're trying to subscribe to a newsletter, and Google asks you to identify all the...

Dev.to · GoldenGlobalHawks
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
Armed robbery at an NSW restaurant exposes the dispatch gap that security operators should be solving
A stabbing at a Long Jetty restaurant shows what happens with zero response infrastructure. Here's the systems breakdown security operators need to audit.

Dev.to · GoldenGlobalHawks
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
89 drones hit the water simultaneously: the RF failure mode every event tech operator should model for
89 drones dropped into Sydney Harbour mid-show due to RF interference. Here's the failure chain, the failsafe logic, and what ground-ops teams need to pre-plan.

Dev.to · GoldenGlobalHawks
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
The four-minute gap: what the Nando's machete incident reveals about incident response systems (not just training)
A machete incident at Nando's Adelaide exposes the gap between policy docs and real incident-response systems. What operators building security workflows need t

Dev.to · Sulthon Zainul Habib
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
I Scanned 200 Public GitHub Repos for Leaked .env Files — Then Built a CLI to Stop It
How I found exposed AWS keys, GitHub tokens, and private keys in .env files — and built envguard to catch them before they ship.

Dev.to · N Suresh
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
SSL vs TLS Explained: Complete HTTPS Security Guide for Modern Website Security
You’ve probably seen HTTPS in your browser and heard people mention SSL certificates when discussing...

Dev.to · InboxOro
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
How Developers Reduce Spam While Testing Authentication Systems
Authentication systems are a core part of modern web applications. From signup verification and OTP...

Dev.to · ton-whale
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
How I Actually Verified TON Poker's RNG (And You Can Too)
TL;DR: TON Poker uses blockchain-based RNG that's more transparent than traditional poker rooms, but...

Dev.to · Lavadera Ruttinger
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
Building a Safe Telegram Bot for Crypto Poker: A Developer's Field Guide
TL;DR: Most Telegram crypto poker groups are running on insecure bot architectures that make scams...

Dev.to · Dennis Vorobyov
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
Supply-Chain Attacks Cost $4.91M per Breach
IBM 2025: supply-chain breaches cost $4.91M and take 267 days to contain. Only 24% of teams trust their dependencies.

Dev.to · Ram Chandra Samal
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
Stop pasting tokens into random websites: meet SmartDevUtils
If you've done any of these in the last week — Googled "decode jwt online", clicked the first...

Dev.to · AndrewDangerously
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
Linux Security Administration in Enterprise Environments
Authentication, Firewalls, OS Hardening, Account Security, Cryptography, and...

Dev.to · Victor Ayoola
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
How My Team from Risevest Academy and I Built an End-to-End Encrypted Messaging App in 3 Weeks
An account of the decisions, the mistakes, and everything I learned from building Culver.

Dev.to · soy
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
GHES Key Rotation, Bug Bounty Program Refocus, AI Agent Permission Fatigue
GHES Key Rotation, Bug Bounty Program Refocus, AI Agent Permission Fatigue ...
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