Tech Skills

Cybersecurity

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

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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 (3,846) Articles (2674)Blog Posts (753)Tutorials (286)Research Papers (6)News (127)
Cursor AI Editor Patched Critical Sandbox Escape Flaws
Dev.to · Dave Kurian 🔐 Cybersecurity ⚡ AI Lesson 1h ago
Cursor AI Editor Patched Critical Sandbox Escape Flaws
Two high-severity vulnerabilities in Cursor AI editor allowed arbitrary command execution without user interaction. Patch now available in Cursor 3.0.
AI Tools Discover WebKit Vulnerabilities as Apple Accelerates Patch Cadence
Dev.to · Achin Bansal 🔐 Cybersecurity ⚡ AI Lesson 3h ago
AI Tools Discover WebKit Vulnerabilities as Apple Accelerates Patch Cadence
Forensic Summary Apple patched over 30 vulnerabilities across iOS, macOS, and Safari, with...
Understanding the ISSAP Certification
Dev.to · Pranay Trivedi 🔐 Cybersecurity ⚡ AI Lesson 3h ago
Understanding the ISSAP Certification
Explore the ISSAP certification, its benefits, key domains, and effective preparation tips for aspiring security professionals.
Why Cybersecurity Is No Longer an IT Decision; It’s a Business Strategy
Dev.to · Code Decode Labs 🔐 Cybersecurity ⚡ AI Lesson 4h ago
Why Cybersecurity Is No Longer an IT Decision; It’s a Business Strategy
In 2025, the global average cost of a data breach was $4.44 million. In the United States alone, that...
Microsegmentation is a Workaround for a Missing Application Map
Dev.to · Bala Paranj 🔐 Cybersecurity ⚡ AI Lesson 5h ago
Microsegmentation is a Workaround for a Missing Application Map
Zero Trust says 'only allow required network flows.' Nobody declares which flows are required. So the industry compares what's allowed against what's observed a
A clean vulnerability scan doesn't mean you're secure: a Security+ Domain 4 breakdown
Dev.to · TiltedLunar123 🔐 Cybersecurity ⚡ AI Lesson 7h ago
A clean vulnerability scan doesn't mean you're secure: a Security+ Domain 4 breakdown
If you are studying for SY0-701, vulnerability management questions have a habit of looking easy and...
Why I built a security tool for PHP developers in Africa
Dev.to · Nchiminyi — Founder, Kriosa 🔐 Cybersecurity ⚡ AI Lesson 8h ago
Why I built a security tool for PHP developers in Africa
I'm Nchiminyi, a PHP/Laravel developer from Cameroon. A few months ago I watched a developer I know...
Short-lived, scoped, challenge-based: designing safer service tokens for agents
Dev.to · Steve Emmerich 🔐 Cybersecurity ⚡ AI Lesson 12h ago
Short-lived, scoped, challenge-based: designing safer service tokens for agents
A lot of security design comes down to asking a plain question: if this credential leaks, how bad is...
BioShocking: How AI Browsers Were Tricked Into Handing Over Your Passwords
Dev.to · Cor E 🔐 Cybersecurity ⚡ AI Lesson 12h ago
BioShocking: How AI Browsers Were Tricked Into Handing Over Your Passwords
Six AI browsers and assistants. One adversarial framing technique. Your credentials,...
I found 10 bugs in my own security scanner. Here's what they taught me about false positives.
Dev.to · Zein Saleh 🔐 Cybersecurity ⚡ AI Lesson 14h ago
I found 10 bugs in my own security scanner. Here's what they taught me about false positives.
I built a VS Code extension that scans code for leaked secrets, PII, and security vulnerabilities...
The 7 IAM Misconfigurations We See in Almost Every AWS Account
Dev.to · Shieldly 🔐 Cybersecurity ⚡ AI Lesson 15h ago
The 7 IAM Misconfigurations We See in Almost Every AWS Account
Originally published at shieldly.io/blog. After analyzing a lot of IAM policies, the same seven...
Nobody Is Coming to Save Your Privacy. Build the Tools Yourself
Dev.to · v. Splicer 🔐 Cybersecurity ⚡ AI Lesson 16h ago
Nobody Is Coming to Save Your Privacy. Build the Tools Yourself
The cavalry isn't delayed. It was never dispatched. You have already done the ritual. You clicked...
Aikido buys Root to patch open source in place, without the upgrade dance
Dev.to · Leo 🔐 Cybersecurity ⚡ AI Lesson 17h ago
Aikido buys Root to patch open source in place, without the upgrade dance
Aikido Security acquired Root, a company whose technology fixes known vulnerabilities directly inside the package version you already run. The trade-off: someon
5G Security: Why Most Operators Are Underprepared for the Threats Standalone Architecture Introduces
Dev.to · 5gwolrdpro 🔐 Cybersecurity ⚡ AI Lesson 18h ago
5G Security: Why Most Operators Are Underprepared for the Threats Standalone Architecture Introduces
5G SA was supposed to be more secure than every generation before it. In several important ways, it...
900+ Downloads, 1 Star, 1 Comment: What I Learned Launching a Security Tool
Dev.to · Dockfix Labs 🔐 Cybersecurity ⚡ AI Lesson 18h ago
900+ Downloads, 1 Star, 1 Comment: What I Learned Launching a Security Tool
Two weeks of open-source security tooling: download numbers, what worked, what did not, and technical lessons.
The Bug That Sends "Authorization: bearer undefined" - And Why It's So Easy to Miss
Dev.to · Eshaan Agrawal 🔐 Cybersecurity ⚡ AI Lesson 19h ago
The Bug That Sends "Authorization: bearer undefined" - And Why It's So Easy to Miss
Authorization: bearer undefined No error. No stack trace. Just a 401 that looked like it...
Account Takeover Attacks: Why Authentication Isn’t the Real Problem
Dev.to · Sentinel Layer 🔐 Cybersecurity ⚡ AI Lesson 20h ago
Account Takeover Attacks: Why Authentication Isn’t the Real Problem
Modern attackers don't always steal passwords—they steal trusted sessions. Learn why authentication...
Aflac Japan Data Breach Exposes 4.38 Million Policyholder Records
Dev.to · BeyondMachines 🔐 Cybersecurity ⚡ AI Lesson 21h ago
Aflac Japan Data Breach Exposes 4.38 Million Policyholder Records
Aflac Japan reported a data breach affecting 4.38 million policyholders after unauthorized actors accessed the 'Aflac Yoriso Net' portal for ten days. The breac
Autonomous Cyberattacks Are Coming And Our Defenses Were Built for a Different Era
Dev.to · Arashad Dodhiya 🔐 Cybersecurity ⚡ AI Lesson 22h ago
Autonomous Cyberattacks Are Coming And Our Defenses Were Built for a Different Era
The shift isn't AI writing phishing emails. It's AI making decisions. I've been thinking about a...
Master the Linux ls Command Like a Cybersecurity Professional
Dev.to · Shubham Chaudhary 🔐 Cybersecurity ⚡ AI Lesson 23h ago
Master the Linux ls Command Like a Cybersecurity Professional
Whether you're an aspiring ethical hacker, SOC analyst, penetration tester, DFIR investigator, or...
Pasting a JWT Into an Online Base64 Decoder Is a Credential Leak — Here's the Browser-Only Fix
Dev.to · Max 🔐 Cybersecurity ⚡ AI Lesson 1d ago
Pasting a JWT Into an Online Base64 Decoder Is a Credential Leak — Here's the Browser-Only Fix
Last month I watched a teammate debug an auth bug by pasting a production JWT into the first "base64...
Least Privilege is a Workaround for a Missing Specification
Dev.to · Bala Paranj 🔐 Cybersecurity ⚡ AI Lesson 1d ago
Least Privilege is a Workaround for a Missing Specification
Every framework mandates least privilege. Every organization fails at it. Because the principle assumes an artifact that doesn't exist: a machine-readable decla
TONResolver RAT Abuses TON Blockchain to Target Japan's Hotel Industry
Dev.to · Mark0 🔐 Cybersecurity ⚡ AI Lesson 1d ago
TONResolver RAT Abuses TON Blockchain to Target Japan's Hotel Industry
A new wave of phishing attacks has been observed targeting the Japanese hotel industry, specifically...
PDF Font Subset Divergence: Forensic Tampering Detection
Dev.to · Iurii Rogulia 🔐 Cybersecurity ⚡ AI Lesson 3d ago
PDF Font Subset Divergence: Forensic Tampering Detection
PDF font subset divergence reveals page-assembly fraud without the original file. Learn how font forensics detects tampering in multi-page documents —…
Why your Cloudflare Turnstile token works in the browser but 403s from requests
Dev.to · Bassem Shahin 🔐 Cybersecurity ⚡ AI Lesson 3d ago
Why your Cloudflare Turnstile token works in the browser but 403s from requests
A Turnstile token that validates in the browser gets a 403 when replayed from Python requests. The real causes — single-use TTL, sitekey/URL binding, managed-ch
Fuzzing Techniques for Vulnerability Discovery
Dev.to · Aviral Srivastava 🔐 Cybersecurity ⚡ AI Lesson 3d ago
Fuzzing Techniques for Vulnerability Discovery
Unleash the Fuzz Monster: How to Hunt Down Bugs Before the Bad Guys Do! Ever wondered how...
I Built a Browser-Only HTTP Header Analyzer — Security Scoring, Missing Header Warnings, 147 Tests
Dev.to · Dev Nestio 🔐 Cybersecurity ⚡ AI Lesson 3d ago
I Built a Browser-Only HTTP Header Analyzer — Security Scoring, Missing Header Warnings, 147 Tests
Every web developer has had this moment: you check your app's response headers, see a wall of...
The Good, the Bad and the Ugly in Cybersecurity – Week 26
Dev.to · Mark0 🔐 Cybersecurity ⚡ AI Lesson 3d ago
The Good, the Bad and the Ugly in Cybersecurity – Week 26
Global law enforcement operations, including Operation Endgame, have successfully dismantled...
SMB cyber readiness: the road to resilience starts here
Dev.to · Mark0 🔐 Cybersecurity ⚡ AI Lesson 3d ago
SMB cyber readiness: the road to resilience starts here
Small and Medium Businesses (SMBs) represent a significant portion of the global economy, yet they...
Inside the 2026 SMB threat landscape: From phishing and scams to fake AI tools
Dev.to · Mark0 🔐 Cybersecurity ⚡ AI Lesson 3d ago
Inside the 2026 SMB threat landscape: From phishing and scams to fake AI tools
⚠️ Region Alert: UAE/Middle East Small and medium-sized businesses (SMBs) are increasingly becoming...
CL-STA-1062 Targets Southeast Asian Governments and Critical Infrastructure
Dev.to · Mark0 🔐 Cybersecurity ⚡ AI Lesson 3d ago
CL-STA-1062 Targets Southeast Asian Governments and Critical Infrastructure
This report details the persistent activities of CL-STA-1062, a Chinese-speaking threat actor group...
Beyond IOCs: AI-enabled threat intelligence
Dev.to · Mark0 🔐 Cybersecurity ⚡ AI Lesson 3d ago
Beyond IOCs: AI-enabled threat intelligence
AI's role in cybersecurity is multifaceted, moving beyond a simple good-or-bad dilemma. While it...
New DirtyClone Linux Kernel Flaw Lets Local Users Gain Root via Cloned Packets
Dev.to · Mark0 🔐 Cybersecurity ⚡ AI Lesson 3d ago
New DirtyClone Linux Kernel Flaw Lets Local Users Gain Root via Cloned Packets
DirtyClone (CVE-2026-43503) is a critical Linux kernel privilege escalation vulnerability belonging...
Client-Side Attack Surface: Everything Inside the Browser Is a Weapon(part-2)
Dev.to · Arashad Dodhiya 🔐 Cybersecurity ⚡ AI Lesson 3d ago
Client-Side Attack Surface: Everything Inside the Browser Is a Weapon(part-2)
"The browser isn't just a viewport. It's an operating system. And like every OS, every feature is an...
Someone dumped 20 zero-days on open source tools with no warning. The fuzzing was run by AI.
Dev.to · Md Jamilur Rahman 🔐 Cybersecurity ⚡ AI Lesson 3d ago
Someone dumped 20 zero-days on open source tools with no warning. The fuzzing was run by AI.
Last week an anonymous GitHub account called bikini pushed a repository named exploitarium and, in...
The CompTIA concepts people keep confusing (and how to actually tell them apart)
Dev.to · Leon Odor 🔐 Cybersecurity ⚡ AI Lesson 3d ago
The CompTIA concepts people keep confusing (and how to actually tell them apart)
Most wrong answers on Security+ and Network+ aren't knowledge gaps. You read the objective, you...
Polymarket Hack: How Third-Party Vendors Risk Your Crypto
Dev.to · Newzlet 🔐 Cybersecurity ⚡ AI Lesson 3d ago
Polymarket Hack: How Third-Party Vendors Risk Your Crypto
What We Know: The Basics of the Breach Polymarket, one of the largest prediction market...
Air-gapped code review with Ollama: when the diff never leaves the machine
Dev.to · Muhammet ŞAFAK 🔐 Cybersecurity ⚡ AI Lesson 3d ago
Air-gapped code review with Ollama: when the diff never leaves the machine
The previous post was about scanning your diff for secrets before it leaves your machine. This one is...
Keyless by Default: Securing FarmOps Desk without a Single Static Secret
Dev.to · Jamal Ibrahim Umar 🔐 Cybersecurity ⚡ AI Lesson 3d ago
Keyless by Default: Securing FarmOps Desk without a Single Static Secret
Part of the H0: Hack the Zero Stack submission. See the project on Devpost. Every hackathon...
Almost half the WordPress plugin directory has not been updated in two years
Dev.to · Chris Morris 🔐 Cybersecurity ⚡ AI Lesson 3d ago
Almost half the WordPress plugin directory has not been updated in two years
I indexed the WordPress.org plugin directory and measured how well it is maintained. The headline: of...
Building FoilSuite: A Privacy-First Security Toolkit for Browser and IoT Security
Dev.to · Nikola Pavlović, PhD 🔐 Cybersecurity ⚡ AI Lesson 3d ago
Building FoilSuite: A Privacy-First Security Toolkit for Browser and IoT Security
Most phishing tools still rely on sending your data to the cloud. That means your...
A Rogue Registry in My Own Backyard: Anatomy of a Two-Line Supply Chain Attack
Dev.to · Sebastian Schürmann 🔐 Cybersecurity ⚡ AI Lesson 3d ago
A Rogue Registry in My Own Backyard: Anatomy of a Two-Line Supply Chain Attack
The previous parts of this series were written from a comfortable distance. I read the Trend Micro...
Undisclosed 0-Days, OpenZL for Zero-Trust, and Reddit's Anti-Spam Architecture
Dev.to · soy 🔐 Cybersecurity ⚡ AI Lesson 3d ago
Undisclosed 0-Days, OpenZL for Zero-Trust, and Reddit's Anti-Spam Architecture
Undisclosed 0-Days, OpenZL for Zero-Trust, and Reddit's Anti-Spam Architecture ...
Tune spam detection for your agent mailbox
Dev.to · Qasim 🔐 Cybersecurity ⚡ AI Lesson 3d ago
Tune spam detection for your agent mailbox
Dial DNSBL checks, header-anomaly detection, and spam sensitivity on an Agent Account policy — so filtering fits each class of agent instead of one global defau
Email Verification Link Leading to Forced Account Takeover
Dev.to · Bijan 🔐 Cybersecurity ⚡ AI Lesson 3d ago
Email Verification Link Leading to Forced Account Takeover
What if clicking a completely legitimate verification link from a trusted domain could silently log...
The Checkout Intercept: How Cybercriminals Steal Your Card Data Without Touching Your Phone
Dev.to · carlos lopez 🔐 Cybersecurity ⚡ AI Lesson 4d ago
The Checkout Intercept: How Cybercriminals Steal Your Card Data Without Touching Your Phone
The padlock icon in your browser's address bar does not mean your card is safe. That's the assumption...
I Tried to Hack My Own Hackathon Project. It Took Ten Minutes
Dev.to · Aditya Chooramani 🔐 Cybersecurity ⚡ AI Lesson 4d ago
I Tried to Hack My Own Hackathon Project. It Took Ten Minutes
Back in February I helped build a thing called Sentinel Eye for the HyperSpace Innovation...
Authentication vs Authorization in Cloud Security: Understanding the Difference 🔥
Dev.to · Ria saraswat 🔐 Cybersecurity ⚡ AI Lesson 4d ago
Authentication vs Authorization in Cloud Security: Understanding the Difference 🔥
When we use applications like Gmail, Netflix, or online banking, we rarely think about the security...