Daily Tech & Cyber Security Brief with RSS, OpenAI GPT-4o, and Gmail

Description

What this workflow does
Pulls free security/tech headlines from multiple RSS feeds (e.g., CISA, BleepingComputer, Krebs, SecurityWeek, Ars Technica, TechCrunch, Hacker News).

De-duplicates stories, keeps only the last 24 hours, and limits to a manageable number.

Uses OpenAI to write a concise brief with sections and "Why it matters."

Sends a clean HTML email via Gmail.

Category: Security / News\
Time to set up: ~10--15 minutes\
Difficulty: Beginner--Intermediate\
Cost: Mostly free (OpenAI tokens + Gmail)

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What you'll need
n8n (recent version)
OpenAI credentials
Gmail (or SMTP) credentials
A few free RSS feed URLs (swap in/out as you like)

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Set up steps
Trigger -- Add a Cron to run daily (pick your time and timezone).
Fetch -- Add one RSS Read node per source and connect all to a Merge (append).
De-duplicate (this run) -- Add Remove Duplicates and compare on a stable key (prefer the article URL).
Freshness -- Add an IF to pass only items published in the last 24 hours.
Limit -- Add Limit to cap the total items (e.g., 25).
Summarize -- Add OpenAI → Message a model to produce a JSON brief with subject + HTML body.
Email -- Add Gmail → Send to deliver the brief to your inbox.

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Tips & troubleshooting
If everything gets discarded at de-dup e while testing, switch to "within current input" or reset the node's stored values.
If no items pass the IF, widen the date window temporarily (some feeds publish late).
If the email arrives blank, ensure Gmail email type is set to HTML and the subject/body fields map to the model's output.

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Sources you can start with (swap freely)
CISA, BleepingComputer, KrebsOnSecurity, SecurityWeek, Ars Technica (Security), TechCrunch (Security), Hacker News (front page).