161 security guides
Practical, source-backed guides on securing real deployments: pre-launch checklists, exposed secrets, security headers, and platform-specific misconfigurations.
Without a CSP header, browsers allow any script to run, letting attackers execute malicious JavaScript via XSS or compromised libraries.
Learn step - by - step how to add a CSP header, choose directives, use nonces or hashes, and test with report - only mode to protect your site from XSS and related attacks.
CORS stands for Cross - Origin Resource Sharing, a browser security feature that controls how web resources are shared across different origins.
Same - origin policy blocks cross - origin reads by default, while CORS lets a server opt - in to share resources with selected origins via HTTP headers.
CORS lets a server tell browsers which origins may read its resources, enabling secure cross - origin requests while preserving the same - origin policy.
The "blocked by CORS policy" message appears when a browser stops a cross - origin request because the server did not send the required CORS headers.
Access-Control-Allow-Origin (ACAO) tells browsers which origins can read a cross - origin response. Learn the header values, credential rules, and caching tips to avoid CORS errors.
CORS cannot be removed; you must configure server headers, use a same - origin proxy, or apply temporary developer work - arounds.
The Access-Control-Allow-Origin header controls which origins can read a response. Use a single explicit origin, avoid wildcards with credentials, and add Vary: Origin for caching.
Learn what Windsurf AI code editor IDE is, how it improves developer productivity, and the security measures built into the platform.
Bubble.io offers a no - code PaaS with SOC 2, GDPR and ISO 27001 compliance, but misconfigurations like an open Data API can still expose data. Learn concrete steps to harden your Bubble app.
Cursor offers four tiers - Hobby (free), Individual ($20/mo), Teams ($40 per user/mo), and Enterprise (custom). This guide breaks down the pricing and security - related features of each plan.
Learn the difference between ISO compliance and certification, practical steps for small teams, and how Decloak’s scan reports simplify compliance mapping.
Supabase’s leaked - password protection blocks passwords found in breach databases using the HaveIBeenPwned API; enable it in the Auth settings, understand its limits, and combine it with other hardening measures.
Auth0 is an identity - as - a - service platform that meets major security certifications and offers built - in protections such as MFA and real - time attack monitoring, making it a technically sound choice for most enterprises.
Learn step - by - step how to set up Supabase Auth, protect your data with Row - Level Security, and avoid common secret - exposure pitfalls.
Supabase is an open - source backend - as - a - service built on PostgreSQL that bundles authentication, storage, realtime listeners, auto - generated APIs and edge functions, letting developers launch full backends in minutes.
Firebase Auth offers quick setup and many social providers, while Supabase Auth gives full SQL - based control and open - source transparency. Choose based on operational constraints and security requirements.
A quick guide to the leading social - login, SSO, and other third - party authentication services developers use today.
Vercel is a cloud platform that lets you build, preview, and ship modern front - ends, offering edge hosting, serverless functions, and seamless Git integration.
Supabase encrypts all stored customer data with AES - 256, covering the PostgreSQL database, Auth service, and Storage objects across all regions.
An AI pentest uses artificial - intelligence agents to automate reconnaissance, vulnerability discovery, exploitation and reporting, giving faster, repeatable assessments while still needing human review.
AI speeds up discovery but still needs human expertise; Decloak’s AI Pentesting bridges the gap by confirming exploits safely.
Penetration testing follows a five - stage lifecycle - reconnaissance, scanning, vulnerability assessment, exploitation, and reporting - to systematically uncover and document security weaknesses.
Decloak’s AI - Pentesting layer provides the most reliable, automated validation of vulnerabilities for web apps and APIs, making it the top choice for teams that need proven exploit confirmation without manual effort.
Both CompTIA CySA+ and PenTest+ sit at the same intermediate - to - advanced level and are generally considered equally difficult, with each exam focusing on different skill sets.
Pentesting is legal only when you have explicit written permission from the system owner; without consent it is treated as unauthorized access and can be prosecuted.
A pentest, short for penetration test, is a controlled simulated cyber - attack that reveals security weaknesses so they can be fixed before real attackers exploit them.
v0 is a Vercel - owned AI development platform, and you can quickly check its security posture with a free Decloak scan that highlights common web - app risks.
The v0 app is free to use, but you should still secure it; Decloak’s free scan can quickly reveal common web security issues without any account.
Free security scan
Decloak's free scan runs in about 15 seconds, no account required, and covers: