DEV Community

Security

Hopefully not just an afterthought!

Posts

đź‘‹ Sign in for the ability to sort posts by relevant, latest, or top.
Fixing the 550 SPF Check Failed Error: A Technical Step-by-Step Troubleshooting Guide

Fixing the 550 SPF Check Failed Error: A Technical Step-by-Step Troubleshooting Guide

Comments
4 min read
Security news weekly round-up - 7th August 2026

Security news weekly round-up - 7th August 2026

1
Comments
4 min read
Why DMARC p=reject Isn't Your Ultimate Deliverability Shield (And What You're Missing)

Why DMARC p=reject Isn't Your Ultimate Deliverability Shield (And What You're Missing)

Comments
4 min read
How to Protect Your REST API with a Free WAF

How to Protect Your REST API with a Free WAF

5
Comments 6
2 min read
I Built an AI Agent Security Scanner. Semgrep and CodeQL Detect 0 Percent of These Attacks

I Built an AI Agent Security Scanner. Semgrep and CodeQL Detect 0 Percent of These Attacks

Comments
1 min read
AgentGuard vs Semgrep vs CodeQL: 100 Percent vs 0 Percent on AI Agent Security

AgentGuard vs Semgrep vs CodeQL: 100 Percent vs 0 Percent on AI Agent Security

Comments
1 min read
Your Supabase service_role key is probably in your browser bundle

Your Supabase service_role key is probably in your browser bundle

Comments
5 min read
How to Build a Tamper-Evident Audit Trail for AI Agent Actions

How to Build a Tamper-Evident Audit Trail for AI Agent Actions

25
Comments 1
22 min read
Adding WebAuthn to a multi-tenant NestJS + Next.js app: what nobody tells you

Adding WebAuthn to a multi-tenant NestJS + Next.js app: what nobody tells you

Comments
11 min read
Replay-Safe Magic Link Reviews

Replay-Safe Magic Link Reviews

1
Comments
4 min read
Cloud-Native Security Practices for Developers: Containers, Kubernetes, and CI/CD (2026)

Cloud-Native Security Practices for Developers: Containers, Kubernetes, and CI/CD (2026)

Comments
21 min read
Durable approval is not the same as valid approval

Durable approval is not the same as valid approval

6
Comments
3 min read
Your Agent Received a Message. Should It Trust the Sender? The IETF Just Published a Protocol for That.

Your Agent Received a Message. Should It Trust the Sender? The IETF Just Published a Protocol for That.

Comments
5 min read
Network service based on ZeroTier

Network service based on ZeroTier

Comments
1 min read
Why your email goes to spam, and how to actually fix it

Why your email goes to spam, and how to actually fix it

Comments
6 min read
đź‘‹ Sign in for the ability to sort posts by relevant, latest, or top.