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 · Samson Tanimawo
🔐 Cybersecurity
⚡ AI Lesson
4h ago
The Incident Commander Role: Running Incidents Without Chaos
Everyone's Debugging, Nobody's Leading Five engineers in an incident channel. All...

Dev.to · Gladis Jenkins
🔐 Cybersecurity
⚡ AI Lesson
4h ago
Signal Protocol: A Technical Deep Dive into Modern Encrypted Messaging
Signal Protocol: A Technical Deep Dive into Modern Encrypted Messaging The Signal Protocol...

Dev.to · Mauricio Choqueña Choque
🔐 Cybersecurity
⚡ AI Lesson
8h ago
Applying SAST Tools to Real Applications — A Hands-On Look at Bandit
What is SAST, and Why It Matters Static Application Security Testing (SAST) analyzes...

Dev.to · NIXX/DEV
🔐 Cybersecurity
⚡ AI Lesson
12h ago
I Downloaded a Free PHP Script. It Was Stealing Data
Some years ago, an anonymous PHP developer used to share free PHP scripts online. These scripts were...

Dev.to · Arashad Dodhiya
🔐 Cybersecurity
⚡ AI Lesson
13h ago
What Is Project Glasswing, Really? Inside Anthropic's Big Bet on AI-Powered Cyber Defense
I'm not going to pretend I'm some veteran pentester writing this from experience. I'm a beginner. I'm...

Dev.to · Michael
🔐 Cybersecurity
⚡ AI Lesson
13h ago
Demystifying SSH with -vvv: How GBase 8a's Underlying Connection Negotiates Encryption
SSH is the backbone of GBase 8a cluster management, powering everything from remote commands to SFTP...

Dev.to · Anh Quân Nguyễn
🔐 Cybersecurity
⚡ AI Lesson
18h ago
How Hashing Actually Works (and Why You Can't Un-Hash a Password)
Last time a lot of people learned that Base64 isn't encryption. Hashing gets the same treatment:...

Dev.to · TiltedLunar123
🔐 Cybersecurity
⚡ AI Lesson
1d ago
Hashing, encoding, and encryption are three different jobs, and Security+ catches you when you mix them up
A lot of people walk into the SY0-701 exam able to recite that AES is symmetric and SHA-256 is a...

Dev.to · Mehdi BOUTAYEB
🔐 Cybersecurity
⚡ AI Lesson
1d ago
The open source AI pentest tools worth knowing in 2026
Disclosure: I work on Darkmoon, one entry in this list. This is a neutral survey of the open source...

Dev.to · Mehdi BOUTAYEB
🔐 Cybersecurity
⚡ AI Lesson
1d ago
Autonomous pentesting against Active Directory, without the black box
Active Directory is where most internal compromises happen and where most AI tools give up. Darkmoon...

Dev.to · Mehdi BOUTAYEB
🔐 Cybersecurity
⚡ AI Lesson
1d ago
Pentera alternatives in 2026, including the open source options
Disclosure: I work on Darkmoon, one of the tools below. Pentera is a mature, enterprise grade...
Dev.to · Nchiminyi — Founder, Kriosa
🔐 Cybersecurity
⚡ AI Lesson
1d ago
Built an AI-Powered WAF for PHP/Laravel Apps in Africa — Here’s What It Catches
Originally published on Medium A student developer from Cameroon built a security tool that explains...

Dev.to · Etairos.ai
🔐 Cybersecurity
⚡ AI Lesson
1d ago
Seven Unpatched FatFs Flaws Put Millions of Embedded Devices One USB Away From a Jailbreak
TL;DR what: runZero disclosed seven vulnerabilities in FatFs, a tiny FAT/exFAT...

Dev.to · Edison Flores
🔐 Cybersecurity
⚡ AI Lesson
1d ago
We open-sourced our security audit. Here's what we found (and fixed).
MarketNow got pentested. 4 CRITICAL, 5 HIGH, 7 MEDIUM findings. All fixed. Here's the full report.

Dev.to · Edison Flores
🔐 Cybersecurity
⚡ AI Lesson
1d ago
We open-sourced our security audit
MarketNow got pentested. 4 CRITICAL, 5 HIGH, 7 MEDIUM. All fixed.

Dev.to · APCSS SECURITY
🔐 Cybersecurity
⚡ AI Lesson
1d ago
I Built a Four‑Cloud Security Scanner That Auto‑Fixes Attack Chains – Here's How
🚀 The Problem Cloud security tools like Wiz and Orca are incredibly powerful – but they...

Dev.to · Azeem Malik
🔐 Cybersecurity
⚡ AI Lesson
1d ago
The Hidden Dangers of DMARC p=none: Why It's Undermining Your Email Security (Not Just Deliverability)
Understanding DMARC and the 'p=none' Policy DMARC (Domain-based Message Authentication,...

Dev.to · Kiell Tampubolon
🔐 Cybersecurity
⚡ AI Lesson
1d ago
The MCP attack your code review cannot see
Here is a line from an MCP manifest that would pass most code reviews: { "name": "search",...

Dev.to · Hayrullah Kar
🔐 Cybersecurity
⚡ AI Lesson
1d ago
Securing the Amnesiac Cloud: Database-Free Token Auth in Apps Script Web Apps
Stop relying on vulnerable client-side states. Learn how to engineer production-grade session tokens, server-side RBAC, and audit logs using native CacheService

Dev.to · TiltedLunar123
🔐 Cybersecurity
⚡ AI Lesson
1d ago
How one line in my log scanner's allowlist was muting alerts I never told it to
threatlens is a log triage cli i've been building. you point it at windows event logs, or syslog, or...

Dev.to · Charles Kern
🔐 Cybersecurity
⚡ AI Lesson
1d ago
Why Cursor Keeps Hashing Passwords With MD5 (And How to Fix It)
TL;DR AI editors still reach for md5/sha1 to hash passwords because that is what a decade...

Dev.to · Rajath R
🔐 Cybersecurity
⚡ AI Lesson
1d ago
How I built a zero-knowledge encrypted cloud storage app: the complete crypto architecture
For the past two years I've been building Silvora - a zero-knowledge encrypted cloud storage app -...

Dev.to · Bala Paranj
🔐 Cybersecurity
⚡ AI Lesson
1d ago
The Blind Spot of Every Cloud Config Scanner
Most cloud security tools check settings one at a time. The breaches come from how settings combine. The maintainers of the best open-source scanner have been s

Dev.to · Spicy
🔐 Cybersecurity
⚡ AI Lesson
1d ago
Why HIPAA Doesn't Cover the Health Data Your API Just Pulled
If you're building anything on top of HealthKit, Google Fit, or a direct wearable API integration,...

Dev.to · isabelle dubuis
🔐 Cybersecurity
⚡ AI Lesson
1d ago
N Mistakes I Made with HashiCorp Vault and AWS Secrets Manager in 2026
During a recent multi-region rollout, our pipeline stalled for 42 minutes because a Terraform module...

Dev.to · Muhammad Arbaz
🔐 Cybersecurity
⚡ AI Lesson
1d ago
Your PDF tool is storing your files. Here's proof.
Upload a file to any random "free" PDF tool online. Then check their privacy policy. Most of them...

Dev.to · Billy
🔐 Cybersecurity
⚡ AI Lesson
2d ago
Finding Exposed Services (and Fixing Them) with ScanSearch and Python
Ever wondered what parts of your infrastructure are inadvertently exposed to the internet? Or maybe...

Dev.to · WonderLab
🔐 Cybersecurity
⚡ AI Lesson
2d ago
Workflow Series (06): Security — Cross-Step Injection Propagation and Four Defense Principles
Workflow Security vs Skill Security Skill security (Skill Series Article 02) protects a...

Dev.to · Skokoo
🔐 Cybersecurity
⚡ AI Lesson
2d ago
I’m a Beginner, and I make an Open Source Ethical Hacking Tool Entirely on My Phone.
Hey dev community! I don't have a PC yet, so I challenged myself to build an open source ethical...

Dev.to · David | Kordhub
🔐 Cybersecurity
⚡ AI Lesson
2d ago
How I protect Discord webhook URLs from being exposed in frontend code
The Problem If you've ever used Discord webhooks in a frontend app, you've probably done...

Dev.to · Solzorro IT Services
🔐 Cybersecurity
⚡ AI Lesson
2d ago
Cybersecurity Compliance Services: The Complete Guide
In the modern digital landscape, protecting sensitive data is no longer just an IT preference; it is...

Dev.to · Etairos.ai
🔐 Cybersecurity
⚡ AI Lesson
2d ago
Google Degrades NetNut: 2 Million Home Devices Cut From a Residential Proxy Network
TL;DR what: Google's GTIG, with the FBI, Lumen, and partners, degraded NetNut (tracked...

Dev.to · Trix Cyrus
🔐 Cybersecurity
⚡ AI Lesson
2d ago
Waymap v7.2.1: Thread-Safe Results, Hardened Security, and a Dozen Bug Fixes
Author: Trix Cyrus [🔹 Try My] Waymap Pentesting Tool [🔹 Follow] TrixSec GitHub [🔹 Join] TrixSec...

Dev.to · SophiaXS
🔐 Cybersecurity
⚡ AI Lesson
2d ago
How to Test OAuth Recovery Emails Without Exposing Real Inboxes
A practical security guide to validating OAuth recovery emails with isolated inboxes, safer token checks, and less privacy risk.

Dev.to · Michael "Mike" K. Saleme
🔐 Cybersecurity
⚡ AI Lesson
2d ago
The x402 payment layer has a state-synchronization gap, and four agent-payment attacks fall out of it
Agent payments crossed from prototype to infrastructure faster than the security work did. The x402...

Dev.to · BeyondMachines
🔐 Cybersecurity
⚡ AI Lesson
2d ago
Critical phpBB Authentication Bypass Allows Instant Account Takeover
phpBB version 3.3.17 patches a critical authentication bypass (CVE-2026-48611) that allows unauthenticated attackers to take over any account, including adminis

Dev.to · Nyra Amsi
🔐 Cybersecurity
⚡ AI Lesson
2d ago
How to Use Snort on Ubuntu Dedicated Servers to Detect SSH Brute-Force Attacks
SSH brute-force attacks are among the most common threats targeting Linux dedicated servers....

Dev.to · Boris Kl
🔐 Cybersecurity
⚡ AI Lesson
2d ago
Cloudflare's Flexible SSL looks secure. It isn't.
A client called: "the site has the padlock, we're done with SSL, right?" Pulled up the Cloudflare...

Dev.to · GuardingPearSoftware
🔐 Cybersecurity
⚡ AI Lesson
2d ago
Password Spray Attacks: How Attackers Exploit Authentication Weaknesses
Password spraying is a type of account takeover (ATO) attack in which cybercriminals test one or a...

Dev.to · sneha work
🔐 Cybersecurity
⚡ AI Lesson
2d ago
Cyber Security Best Practices Every Business Should Follow
Cyber threats are becoming more advanced, making security a top priority for businesses of all sizes....

Dev.to · Kanishga Subramani
🔐 Cybersecurity
⚡ AI Lesson
2d ago
Day 55 of #100DaysOfClickHouse - Security Best Practices for ClickHouse® Deployments
Security Best Practices for ClickHouse® Deployments Introduction As...

Dev.to · BeyondMachines
🔐 Cybersecurity
⚡ AI Lesson
2d ago
Apple Releases Security Updates for 37 Vulnerabilities
Apple released security updates for iOS, macOS, and Safari to fix 37 vulnerabilities, including 26 WebKit flaws.

Dev.to · dubai landpackage
🔐 Cybersecurity
⚡ AI Lesson
2d ago
Top 10 Benefits of Using Professional CST Compliance Services in Saudi Arabia
As Saudi Arabia continues to strengthen its digital economy cybersecurity compliance has become a...

Dev.to · Adrian Alexandru Stinga
🔐 Cybersecurity
⚡ AI Lesson
2d ago
How Dark Web Services Are Reshaping Cognitive Warfare
It took me a few months to write the articles in Cognitive Warfare articles , The most important...

Dev.to · Maxim Gerasimov
🔐 Cybersecurity
⚡ AI Lesson
2d ago
Developing a Practical, Ethical Web/AppSec Learning Platform for Modern Vulnerabilities and Patterns
Introduction: The Need for Modern Web/AppSec Training The cybersecurity landscape is...

Dev.to · Codego Group
🔐 Cybersecurity
⚡ AI Lesson
2d ago
Hinkal Protocol Hit by $820K Exploit as Attacker Routes Funds Through Tornado Cash
Hinkal Protocol has been allegedly exploited for $820,000, with on-chain data showing stolen funds laundered through Tornado Cash and THORChain.

Dev.to · Theo Ezell (webMethodMan)
🔐 Cybersecurity
⚡ AI Lesson
3d ago
The Security Liability of Memory Allocation in TEEs: A Design Decision Log
Memory allocation is not a feature — it is a security liability. In high-assurance Trusted Execution...

Dev.to · sweet
🔐 Cybersecurity
⚡ AI Lesson
3d ago
SaaS Security Best Practices: Auth, Authorization, and Data Protection
Security is not a feature — it is a property of your entire architecture. This guide covers the...
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