Tech Skills

Cybersecurity

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

17,983
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 (11,074) Articles (5491)Blog Posts (4301)Tutorials (407)Research Papers (34)News (841)
Dev.to AI 🔐 Cybersecurity ⚡ AI Lesson 1w ago
The implementation of secure
The implementation of secure, off-site data replication protocols guarantees that your historical profile data remains safe against unexpected localized power f
Reddit r/cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
NIST’s NVD still down.
3 days ago, I posted about ongoing issues with the NIST NVD API. At the time, several people reported experiencing the same problem. Unfortunately, the situatio
Five features that turn an OS into a trust platform: Panic, Dead Man’s Switch, E2E messenger, Vault UI, and Secure Boot attestation in IONA OS
Dev.to · Eric-Octavian 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Five features that turn an OS into a trust platform: Panic, Dead Man’s Switch, E2E messenger, Vault UI, and Secure Boot attestation in IONA OS
An operating system should not just execute programs. It should protect the person using it. Most...
15 Best Free Security Tools in 2026
Dev.to · byteguard 🔐 Cybersecurity ⚡ AI Lesson 1w ago
15 Best Free Security Tools in 2026
The best free security tools in 2026 for network scanning, web testing, password auditing, and monitoring. All open source and battle-tested.
How We Made Our Application Quantum-Safe in 3 Weeks (And You Can Too) using IBM Quantum Safe…
Medium · DevOps 🔐 Cybersecurity ⚡ AI Lesson 1w ago
How We Made Our Application Quantum-Safe in 3 Weeks (And You Can Too) using IBM Quantum Safe…
A practical guide to quantum-safe migration using IBM Quantum Safe Explorer and AI-powered remediation Continue reading on Medium »
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Breaking the Filter: How I Unlocked Hidden Application Data via SQL Injection
When building or working with enterprise applications, we often rely on database logic to enforce business rules. For example, ensuring… Continue reading on Med
OverTheWire Bandit Walkthrough — Level 22 → 23 | 30-Day Cybersecurity Learning Journey (Day 22)
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
OverTheWire Bandit Walkthrough — Level 22 → 23 | 30-Day Cybersecurity Learning Journey (Day 22)
Reading a cron script that uses dynamic MD5-hashed filenames and why understanding scripting logic rather than just following instructions… Continue reading on
Your Business Firewall is Probably Lying to You (Here’s Why Charlotte Companies are Switching to…
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Your Business Firewall is Probably Lying to You (Here’s Why Charlotte Companies are Switching to…
Most business owners treat their network firewall like a smoke detector. You buy it, you stick it on the ceiling (or in the server closet)… Continue reading on
One Pixel Off: My Second Clickjacking Lab on PortSwigger
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
One Pixel Off: My Second Clickjacking Lab on PortSwigger
After getting through the first clickjacking lab, I moved to a slightly more advanced variant: this one prefills a form value straight… Continue reading on Medi
Hiding in Plain Sight: My First Clickjacking Lab on PortSwigger
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Hiding in Plain Sight: My First Clickjacking Lab on PortSwigger
After finishing all nine labs in the XSS track, I moved on to a completely different category: Clickjacking. This first lab pairs a delete… Continue reading on
The Letters You Send Today Could Be Read in 2035. Someone Is Already Saving Them.
Medium · Data Science 🔐 Cybersecurity ⚡ AI Lesson 1w ago
The Letters You Send Today Could Be Read in 2035. Someone Is Already Saving Them.
Somewhere right now, a government is collecting your encrypted data without breaking it. Continue reading on Medium »
LastPass says hackers stole customer data through a supply chain breach at Klue
The Next Web AI 🔐 Cybersecurity ⚡ AI Lesson 1w ago
LastPass says hackers stole customer data through a supply chain breach at Klue
LastPass is notifying customers that their personal information and customer support case data were stolen after hackers breached Klue, a competitive intelligen
ZDNet 🔐 Cybersecurity ⚡ AI Lesson 1w ago
The 10-step phone security tune-up you should run every year - and why
Don't let the most essential device in your life become a liability. Our one-hour wellness check will keep your phone secure for another year.
Wazuh Ansible Series Part 9: Custom Malware Detection with YARA Scheduled Scanning
Medium · DevOps 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Wazuh Ansible Series Part 9: Custom Malware Detection with YARA Scheduled Scanning
How I built a YARA scanning pipeline that catches what ClamAV misses — droppers, secret-exfil helpers, encoded launchers, and… Continue reading on Medium »
Reddit r/cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Feeling stressed and overwhelmed
Iwant to tell you that i am on cybersecurity 101 path in tryhackme and the thing is whatever i studied until room "Blue", ik what i studied but i couldn't memor
Dev.to AI 🔐 Cybersecurity ⚡ AI Lesson 1w ago
MCP Server Security Audit 2026: 5 Real Community Server Reviews + Trap Patterns
Adding to my watchlist of AI dev tools. Quick rundown: MCP Server Security Audit 2026: 5 Real Community Server Reviews + Trap Patterns Audited 5 popular communi
npm Supply Chain RAT: PostCSS Impersonation & Dependency Confusion
Dev.to · Satyam Rastogi 🔐 Cybersecurity ⚡ AI Lesson 1w ago
npm Supply Chain RAT: PostCSS Impersonation & Dependency Confusion
Three malicious npm packages masquerading as PostCSS tools delivered Windows RAT payloads. Analysis of supply chain attack mechanics, payload delivery
O Perigo Silencioso das Portas Abertas: O que o mapeamento de rede revela sobre a sua superfície de…
Medium · Python 🔐 Cybersecurity ⚡ AI Lesson 1w ago
O Perigo Silencioso das Portas Abertas: O que o mapeamento de rede revela sobre a sua superfície de…
Por que desenvolver um Port Scanner do zero me ensinou mais sobre Risco e Governança do que rodar ferramentas prontas. Continue reading on Medium »
O Perigo Silencioso das Portas Abertas: O que o mapeamento de rede revela sobre a sua superfície de…
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
O Perigo Silencioso das Portas Abertas: O que o mapeamento de rede revela sobre a sua superfície de…
Por que desenvolver um Port Scanner do zero me ensinou mais sobre Risco e Governança do que rodar ferramentas prontas. Continue reading on Medium »
Reddit r/cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Valuation of Privilege Escalation Exploits through popular software on Windows
What's the valuation if I happen to find a Local Permission Escalation zero-day that allows a user to get admin/system Privilege using a popular software (Not c
Authentication Bypass & Information Disclosure in a Fortune 500 Consumer Goods Company’s External…
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Authentication Bypass & Information Disclosure in a Fortune 500 Consumer Goods Company’s External…
Author: Juliana Fragetti Rbeiro Lima Date: May 2026 Program: VDP (Vulnerability Disclosure Program) — Major Beverage Corporation… Continue reading on Medium »
Claude Code Security: What Every Developer Gets Wrong
Dev.to · MR SAJIB 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Claude Code Security: What Every Developer Gets Wrong
Last month, a developer cloned a GitHub repo and opened it in Claude Code. Before they even clicked...
Total System Dominance: Chaining RFID, Sub-GHz, and Infrared Exploits
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Total System Dominance: Chaining RFID, Sub-GHz, and Infrared Exploits
The amateur hits one vector. The professional chains them all and walks out before the alarm even thinks about ringing. Continue reading on Medium »
Kioptrix Level 1: My First Introduction to Pentesting
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Kioptrix Level 1: My First Introduction to Pentesting
How I pwned the Kioptrix Level 1 virtual machine! Continue reading on Medium »
The cybersecurity industry built a $200B business selling you problems. Nobody got paid to fix them.
The Next Web AI 🔐 Cybersecurity ⚡ AI Lesson 1w ago
The cybersecurity industry built a $200B business selling you problems. Nobody got paid to fix them.
Cybersecurity has never been better at finding risk. Organizations can identify vulnerable servers, dormant user accounts, excessive privileges, exposed cloud a
Chapter 5: The Honeypot Gambit
Dev.to · qanzhi111 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Chapter 5: The Honeypot Gambit
Alex races against a dead man's switch to drain Vector's honeypot contract. But the honeypot holds a secret — it's not a trap, it's a wiretap. And the evidence
Claude Code Security: Why the Real Risk Lies Beyond Code
Dev.to · Dwayne McDaniel 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Claude Code Security: Why the Real Risk Lies Beyond Code
Many cybersecurity professionals have been following Anthropic's announcement about the release of...
Here’s How I Make Windows a LOT More Private Out of the Box
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Here’s How I Make Windows a LOT More Private Out of the Box
A step-by-step guide to reducing what Windows 11 tracks Continue reading on Medium »
Securing React Native Apps: A Comprehensive DevSecOps Pipeline
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Securing React Native Apps: A Comprehensive DevSecOps Pipeline
Mobile app security is very different from web security. Continue reading on Medium »
How a Race Condition in a Loyalty Wallet Scored a $15,000 Critical Payout
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
How a Race Condition in a Loyalty Wallet Scored a $15,000 Critical Payout
We’ve all seen standard web vulnerabilities like cross-site scripting (XSS) or SQL injection. But some of the most lucrative bugs don’t… Continue reading on Med
CMMC Consultant vs. Compliance Software: How to Know What Your Organization Really Needs
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
CMMC Consultant vs. Compliance Software: How to Know What Your Organization Really Needs
Defense contractors are facing more pressure than ever to prove cybersecurity readiness without wasting time, overspending, or walking… Continue reading on Medi
Private Set Intersection: Finding What Two Parties Share Without Revealing the Rest
Dev.to · Haven Messenger 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Private Set Intersection: Finding What Two Parties Share Without Revealing the Rest
Private Set Intersection, usually shortened to PSI, is a protocol for two parties who each hold a set...
App Safety Red Flags: Warning Signs Users Shouldn’t Ignore
Forbes Innovation 🔐 Cybersecurity ⚡ AI Lesson 1w ago
App Safety Red Flags: Warning Signs Users Shouldn’t Ignore
A polished interface, strong rating or confident privacy claim can make an app look trustworthy, but those signals don’t always tell the full story.
IAM Fundamentals for GRC Professionals: Beyond 'Who Can Login
Dev.to · Massimiliano B. 🔐 Cybersecurity ⚡ AI Lesson 1w ago
IAM Fundamentals for GRC Professionals: Beyond 'Who Can Login
Introduction As someone transitioning from software development into GRC (Governance,...
IPVanish handed the FBI its user logs. The user had no idea.
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
IPVanish handed the FBI its user logs. The user had no idea.
In 2016, a VPN provider called IPVanish delivered detailed connection logs to federal investigators — timestamps, IP addresses, session… Continue reading on Med
My 14-Year-Old MacBook Still Works. Why Does Software Decide When Hardware Dies?
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
My 14-Year-Old MacBook Still Works. Why Does Software Decide When Hardware Dies?
A decade-old MacBook Pro reveals an uncomfortable truth: devices often become obsolete not because they stop working, but because software… Continue reading on
NIS2 vs DORA: Which EU Regulation Applies to Your SaaS Product in 2026?
Dev.to · Narendrasahoo 🔐 Cybersecurity ⚡ AI Lesson 1w ago
NIS2 vs DORA: Which EU Regulation Applies to Your SaaS Product in 2026?
If you build SaaS products and serve European customers, two major EU regulations are demanding your...
I'm Building a Code Security Analyzer. A Security Tool Found a Critical In It.
Dev.to · Stanislav Kremeň 🔐 Cybersecurity ⚡ AI Lesson 1w ago
I'm Building a Code Security Analyzer. A Security Tool Found a Critical In It.
I'm building a tool that's supposed to help check code. I call it vibeanalyzer for now. The idea is...
Reddit r/cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Mailing list for cves on random products I use?
Is there any way to basucally add a list of relatively obscure software (eg browser extensions) and be informed if a cve is exposed? I have a few browser extens
🚨 One Click, No Typing: How SearchLeak Weaponized Microsoft 365 Copilot
Dev.to · Alessandro Pignati 🔐 Cybersecurity ⚡ AI Lesson 1w ago
🚨 One Click, No Typing: How SearchLeak Weaponized Microsoft 365 Copilot
Imagine this: You receive a link to a document on a trusted microsoft.com domain. You click it, the...
Using Football Passwords Is A Huge Own Goal
Forbes Innovation 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Using Football Passwords Is A Huge Own Goal
Passwords containing football player or club names can be cracked in milliseconds, warn security researchers.
[Boost]
Dev.to · Patpum Hakaew 🔐 Cybersecurity ⚡ AI Lesson 1w ago
[Boost]
NAT Traversal: How It Works ...
Reddit r/cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
ShapedPlugin supply-chain attack backdoored Pro plugin updates, stealing credentials and 2FA secrets
Attackers backdoored ShapedPlugin Pro updates, deploying malware that steals credentials, 2FA secrets, and grants full site access. https://securityaffairs.com/
Reddit r/cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
BBC News: How 100 hospitals switched to pen and paper to defeat a national cyber-attack. New 10 min youtube doc about the massive hack that Romania coped with surprisingly well:
https://www.youtube.com/watch?v=WxY6aLRVgcI&t=204s submitted by /u/tides977 [link] <a href="https://www.reddit.com/r/cybersecurity/comments/1udc9ss/bbc_news
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Healthcare Data Security Under Pressure as Xsolis Breach Impacts 1.4 Million Individuals
The healthcare sector continues to face growing cybersecurity challenges as another large-scale data breach highlights the risks… Continue reading on Medium »
Intent Doesn’t Lie. How TIKOS® Stopped Every Prompt Injection
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Intent Doesn’t Lie. How TIKOS® Stopped Every Prompt Injection
How TIKOS® Stopped Every Prompt Injection In A Critical System Analysing LLM Internals. Continue reading on Tikos Tech »
Why Weak Passwords Still Win: Lessons from a Hydra Brute-Force Exercise
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
Why Weak Passwords Still Win: Lessons from a Hydra Brute-Force Exercise
Cybersecurity is one of those fields where reading about attacks and actually performing them in a controlled environment are two… Continue reading on Medium »
The Hackers Hiding Their Commands in the Internet’s Phone Book
Medium · Cybersecurity 🔐 Cybersecurity ⚡ AI Lesson 1w ago
The Hackers Hiding Their Commands in the Internet’s Phone Book
A new backdoor called Dohdoor doesn’t connect to a suspicious server. Continue reading on Medium »