Tech Skills

Cybersecurity

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

17,902
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 (10,996) Articles (5449)Blog Posts (4283)Tutorials (390)Research Papers (34)News (840)
I Ran One Command and Found 847 Subdomains in 3 Minutes. Here is How Subfinder Actually Works.
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
I Ran One Command and Found 847 Subdomains in 3 Minutes. Here is How Subfinder Actually Works.
The Story That Changed How I Do Recon Continue reading on OSINT Team »
Reddit r/cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Conditional access bypass
https://dirkjanm.io/bypassing-conditional-access-with-resource-exclusion/ submitted by /u/cydex_cx [link] <a href="https://www.reddit.com/r/cybersecurity/commen
Open-Source Cybersecurity Interview Resource Seeks Community Contributions for Blue Team Content Expansion
Dev.to · Ksenia Rudneva 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Open-Source Cybersecurity Interview Resource Seeks Community Contributions for Blue Team Content Expansion
Introduction Preparing for a cybersecurity interview often entails navigating a fragmented...
OverTheWire Bandit Walkthrough — Level 23 → 24 | 30-Day Cybersecurity Learning Journey (Day 23)
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
OverTheWire Bandit Walkthrough — Level 23 → 24 | 30-Day Cybersecurity Learning Journey (Day 23)
Writing your first exploit shell script and deploying it through a cron-watched directory and why this level represents the most… Continue reading on Medium »
Medium · DevOps 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Web Sitenizin Security Header’larını Kim Kontrol Ediyor?
Altı temel security header’ı, eksik olduklarında neye sebep oldukları ve düzeltmenin aslında ne kadar kolay olduğunu anlatmaya çalışacağım. Continue reading on
pt.2 OSINT Tools Every Investigator Should Know
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
pt.2 OSINT Tools Every Investigator Should Know
Geospatial Intelligence (GEOINT) Continue reading on OSINT Team »
Reddit r/cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Loosening Controls
I shouldn't feel this way. I'm all about tuning security controls to corporate risk appetite. But I feel defeated having roll back restrictions on personal mobi
How I built an end-to-end encrypted pastebin (and why the server can’t read your text)
Dev.to · slavas-dev 🔐 Cybersecurity ⚡ AI Lesson 1w ago
How I built an end-to-end encrypted pastebin (and why the server can’t read your text)
got annoyed that pastebin and similar sites log everything and keep your text forever, so i built one...
The Evasive Adversary: How Cyber Threats Are Redefining Cybersecurity
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
The Evasive Adversary: How Cyber Threats Are Redefining Cybersecurity
"Explore how identity attacks, Living-off-the-Land techniques, AI-assisted operations, and modern SOC detection strategies are reshaping… Continue reading on Me
55,000 fake signups in one night: a bot-detection post-mortem
Dev.to · Jaime trejo 🔐 Cybersecurity ⚡ AI Lesson 1w ago
55,000 fake signups in one night: a bot-detection post-mortem
We sell bot detection. Last night I opened our database and found 555 pages of fake signups. This is...
Unbaked Pie (THM) Tryhackme Medium Challenge
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Unbaked Pie (THM) Tryhackme Medium Challenge
Description : Don’t over-baked your pie! Continue reading on Medium »
From an Informational Finding to a Valuable Lesson: My IDOR Discovery on Bugcrowd
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
From an Informational Finding to a Valuable Lesson: My IDOR Discovery on Bugcrowd
Introduction Continue reading on MeetCyber »
We Built a Self-Hosted WAF You Can Deploy in 10 Minutes
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
We Built a Self-Hosted WAF You Can Deploy in 10 Minutes
Stop Paying Per-Request for a WAF: Self-Host Caddy + Coraza + OWASP CRS in 10 Minutes Continue reading on Medium »
CVE-2025–65640: Escalating a Stored XSS to Account Takeover in Globe Document Intelligence
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
CVE-2025–65640: Escalating a Stored XSS to Account Takeover in Globe Document Intelligence
During a recent penetration testing engagement for a client at CryptoNet Labs, I discovered a Stored Cross-Site Scripting (XSS)… Continue reading on Medium »
The Future of Cyber Threat Intelligence: Why Traditional Security Operations Are No Longer Enough
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
The Future of Cyber Threat Intelligence: Why Traditional Security Operations Are No Longer Enough
https://www.youtube.com/watch?v=SAwHtlm-NV4 Continue reading on Medium »
Free CTF Event This Saturday — Come Learn With Us
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Free CTF Event This Saturday — Come Learn With Us
If you’ve ever been curious about cybersecurity but didn’t know where to start, this one’s for you. Continue reading on Medium »
🚩 Free CTF Event This Saturday — Come Learn With Us
Dev.to · Dallen Sadru 🔐 Cybersecurity ⚡ AI Lesson 1w ago
🚩 Free CTF Event This Saturday — Come Learn With Us
If you've ever been curious about cybersecurity but didn't know where to start, this one's for...
I Hardened Pod securityContext and Broke 9 Containers in Production
Dev.to · david 🔐 Cybersecurity ⚡ AI Lesson 1w ago
I Hardened Pod securityContext and Broke 9 Containers in Production
capabilities.drop: [ALL] and runAsNonRoot: true passed schema validation cleanly. Within minutes of merge, nine containers — including both Postgres instances b
Reddit r/cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Protection from Authorized Users
Looking for some advice..... I'm in the spot of having a Sr VP demand that we prevent data exfiltration from authorized users. The problem is that this isn't th
TechRepublic 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Healthcare Vendor Xsolis Reports Breach Affecting 1.4M People
Xsolis confirmed a healthcare data breach affecting nearly 1.4 million people after a phishing attack exposed health and identity data. The post Healthcare Vend
CVE-2026-48709: CVE-2026-48709: Missing Authorization in OliveTin ValidateArgumentType RPC Endpoint
Dev.to · CVE Reports 🔐 Cybersecurity ⚡ AI Lesson 1w ago
CVE-2026-48709: CVE-2026-48709: Missing Authorization in OliveTin ValidateArgumentType RPC Endpoint
CVE-2026-48709: Missing Authorization in OliveTin ValidateArgumentType RPC...
SQL INJECTION : Part 3.2 — Blind SQL injection vulnerabilities
Medium · Python 🔐 Cybersecurity ⚡ AI Lesson 1w ago
SQL INJECTION : Part 3.2 — Blind SQL injection vulnerabilities
Error-based SQL Injection Continue reading on Medium »
5 Terminal Tricks That Feel Like Cheating (But Aren’t)
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
5 Terminal Tricks That Feel Like Cheating (But Aren’t)
Every developer uses a terminal. Almost nobody uses it well. Continue reading on Medium »
Breaking into SOC: The Security part of IT.
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Breaking into SOC: The Security part of IT.
Six months ago, I landed in the UK with one suitcase, a laptop, and a vague plan to “get into cybersecurity” Continue reading on Medium »
Stop Telling Beginners to Start With CompTIA A+.
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Stop Telling Beginners to Start With CompTIA A+.
The Most Repeated Advice in Cybersecurity Is Wrong Continue reading on Medium »
Bitwarden C2
Reddit r/cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Bitwarden C2
Using Bitwarden Infrastructure to get stuff in and get stuff out (fixed) submitted by <a href="https://
Why Your Backups Won't Save You Without a Disaster Recovery Plan
Dev.to · Isabel Smith 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Why Your Backups Won't Save You Without a Disaster Recovery Plan
Most teams feel confident once they have backups in place. The database is backed up every night....
The Best Way I Found to Prepare For SC-200: Build a Home Lab
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
The Best Way I Found to Prepare For SC-200: Build a Home Lab
After weeks of learning Microsoft security concepts, I finally decided to build a hands-on lab. Here’s what I set up, what went wrong, and… Continue reading on
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Digital Stratigraphy: What Archaeology Teaches Cyber Threat Intelligence
Lessons from Paleoanthropology for the Retrospective Analysis of Historical Malware. Continue reading on Medium »
TechRepublic 🔐 Cybersecurity ⚡ AI Lesson 1w ago
LastPass Confirms Vendor Breach Exposed Customer Contact, Support Data
LastPass said customer contact and support data were exposed after attackers used stolen Klue OAuth tokens to access its Salesforce environment and CRM records.
YellowKey and GreenPlasma: How a Grudge Against Microsoft Broke BitLocker and Gave Attackers SYSTEM
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
YellowKey and GreenPlasma: How a Grudge Against Microsoft Broke BitLocker and Gave Attackers SYSTEM
Author: Shikhali Jamalzade GitHub: alisalive LinkedIn: camalzads Continue reading on Medium »
Microsoft uses AI to link two malware operations in racketeering suit
The Register 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Microsoft uses AI to link two malware operations in racketeering suit
200+ C2 servers linked to StealC and Amadey shut down
Writeup — Basic SSRF Against the Local Server
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Writeup — Basic SSRF Against the Local Server
This lab covers a Server-Side Request Forgery (SSRF) vulnerability. Continue reading on Medium »
Implementing Zero Trust Security in Microservices Architecture
Medium · DevOps 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Implementing Zero Trust Security in Microservices Architecture
Introduction: The New Security Challenge for Modern Apps Continue reading on Medium »
Implementing Zero Trust Security in Microservices Architecture
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Implementing Zero Trust Security in Microservices Architecture
Introduction: The New Security Challenge for Modern Apps Continue reading on Medium »
The ISO 27001 Statement of Applicability, explained for engineers
Dev.to · ComplianceDocs 🔐 Cybersecurity ⚡ AI Lesson 1w ago
The ISO 27001 Statement of Applicability, explained for engineers
If your startup is going for ISO 27001, the document the auditor opens first is the Statement of...
Common IT Issues That Signal Bigger System Problems
Forbes Innovation 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Common IT Issues That Signal Bigger System Problems
Seemingly isolated complaints can be the first visible signs of deeper problems involving networks, identity systems, integrations, security controls or infrast
Mapped 3,900+ C2 servers across 302 Eastern European hosting providers, one host ran half
Reddit r/cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Mapped 3,900+ C2 servers across 302 Eastern European hosting providers, one host ran half
<img src="https://external-preview.redd.it/MZQx-SNarXY47LY5TgLMND2-0dTwMHKys8MTFLdObrA.png?width=320&crop=smart&auto=webp&s=f3b461260bbe637623fa3654
Ransomware's New Math: Inside the £1.9 Billion Season That Redefined Critical-Infrastructure Risk
Hackernoon 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Ransomware's New Math: Inside the £1.9 Billion Season That Redefined Critical-Infrastructure Risk
The 2025 attacks on Jaguar Land Rover and Collins Aerospace revealed that ransomware has evolved from a company-level threat into a systemic economic risk. JLR'
Nessus Agent 11.1.3 corrige un fallo que daba SYSTEM en Windows
Dev.to · lu1tr0n 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Nessus Agent 11.1.3 corrige un fallo que daba SYSTEM en Windows
Tenable publicó Nessus Agent 11.1.3 para corregir CVE-2026-33694, una escalada de privilegios local que permitía ejecutar código como SYSTEM en Window
Stressed by Printer, Internet, and Computer Problems? Here is How to End the Tech Frustration
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Stressed by Printer, Internet, and Computer Problems? Here is How to End the Tech Frustration
We’ve all been there: you have a critical deadline, a meeting starting in five minutes, or a client waiting for an urgent report, and… Continue reading on Mediu
How a composer install Becomes Remote Code Execution: Inside CVE-2026–40261 and CVE-2026–40176
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
How a composer install Becomes Remote Code Execution: Inside CVE-2026–40261 and CVE-2026–40176
Two Composer CVEs from April 2026 that run attacker commands on any PHP developer’s machine, without Perforce installed Continue reading on Medium »
Cybersecurity Careers in Pakistan 2025 — Salary, Certifications, Skills & Complete Roadmap
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Cybersecurity Careers in Pakistan 2025 — Salary, Certifications, Skills & Complete Roadmap
Everything you need to know to land your first cybersecurity job in Pakistan — or go remote and earn in dollars. Continue reading on Medium »
We Scanned the Vibe Coding Security Scanners. Here's What We Found — Including What We Missed.
Dev.to · sehwan Moon 🔐 Cybersecurity ⚡ AI Lesson 1w ago
We Scanned the Vibe Coding Security Scanners. Here's What We Found — Including What We Missed.
There are now more than ten security scanners specifically targeting vibe-coded apps. That happened...
Nobody Told You Your Router Has a “Last Resort” Setting And It’s Probably Misconfigured
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Nobody Told You Your Router Has a “Last Resort” Setting And It’s Probably Misconfigured
Default route configuration sounds like IT homework. For Charlotte business owners, it’s actually the difference between a network that… Continue reading on Med
Letting an AI agent run shell commands is RCE on your machine. I fixed it with the kernel, not Docker.
Dev.to · Rani 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Letting an AI agent run shell commands is RCE on your machine. I fixed it with the kernel, not Docker.
A few weeks ago I gave my coding agent permission to run shell commands, watched it run cargo test,...
DVWA SQL Injection
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
DVWA SQL Injection
Difficulty Levels Covered: Low | Medium | High Vulnerability Class: CWE-89 — Improper Neutralization of Special Elements used in an SQL… Continue reading on Med
Tata Electronics Breach: Supply Chain RCE & Data Exfiltration TTPs
Dev.to · Satyam Rastogi 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Tata Electronics Breach: Supply Chain RCE & Data Exfiltration TTPs
Tata Electronics confirmed cyberattack targeting IT infrastructure with confirmed data exfiltration. Analysis of attack surface, lateral movement chai