Daily Cyber Security Briefing Generator - n8n Workflow

Cybersecurity professionals and executives who need a timely, consolidated daily briefing.
Technical content editors looking to automate news aggregation and summarization.
Users seeking advanced examples of combining multiple data sources and AI within an n8n workflow.
Anyone interested in building robust, scheduled reporting using n8n templates.

Keeping up with the deluge of cyber security news from sources like CISA, BleepingComputer, and Ars Technica is challenging. This sophisticated n8n workflow solves this by automating the entire process. It acts as your personal AI-powered editor, consolidating feeds, removing duplicate stories, filtering for the past 24 hours, and utilizing the OpenAI n8n node (GPT-4o-mini) to generate a concise, professionally written daily brief categorized by topic (Vulnerabilities, Breaches, Policy, etc.). This ensures you receive a high-value, actionable report directly in your inbox every morning. This specific n8n workflow demonstrates complex flow control and integration of large language models for data transformation.

This automation begins with the Schedule Trigger n8n node, which acts as the primary n8n trigger, set to run daily (defaulting to 10 AM).

1. Data Collection: The trigger simultaneously initiates six separate RSS Feed Read n8n node instances, fetching news from key security sources like Bleeping Computer, CISA GOV, and Techcrunch.


2. Aggregation & Cleaning: All items are combined by the Merge n8n node. Subsequently, the Remove Duplicates n8n node filters items based on the link field to ensure only unique stories proceed.


3. Filtering & Limiting: An If n8n node filters items to include only those published within the last 24 hours. A subsequent Limit n8n node ensures that the AI processing step only handles the top 25 most recent stories, optimizing cost and speed.


4. AI Preparation: The first Code n8n node (Code1) standardizes the data structure, preparing a clean JSON array of stories for the language model.


5. AI Summarization: The Message a model n8n node, using OpenAI GPT-4o-mini, receives the raw story data. It follows a detailed system prompt to summarize, categorize, extract technical details (like CVEs), and format the output as a strict JSON object (including subject, html, and text).


6. Post-Processing & Delivery: The second Code n8n node (Code2) parses the AI-generated JSON, stripping any unnecessary markdown fences. Finally, the Gmail n8n node sends the fully formatted HTML daily brief to the designated recipient address. A fallback path ensures a notification is sent if no new items meet the 24-hour criteria.

To deploy this powerful n8n workflow, follow these steps:

1. Import the n8n Templates: Copy the provided JSON code and import it directly into your n8n instance via the 'Workflows' > 'New' > 'Import from JSON' option.


2. Set Up Credentials:

1. Customize the n8n Workflow:

1. Activation: Once configurations and credentials are set, activate the n8n workflow to enable the daily n8n trigger.

Schedule Trigger (n8n trigger): Sets the automation to run daily, initiating the entire n8n workflow.
RSS Feed Read (n8n node): Six instances collect data from various security news sources (e.g., CISA, Bleeping Computer). Users can easily modify these feeds.
Merge (n8n node): Consolidates the six separate streams of RSS items into a single data flow.
Remove Duplicates (n8n node): Ensures efficiency by comparing item links and dropping duplicate stories before processing.
If (n8n node): A crucial flow control step that filters data, allowing only news published within the last 24 hours to proceed, keeping the brief current.
Code1 (n8n node - Data Prep): Standardizes RSS fields (source, title, link, snippet) and encapsulates them into a single list item for the AI model's input.
Message a model (OpenAI n8n node): Uses GPT-4o-mini with a detailed system prompt to analyze the aggregated stories and output a structured JSON brief (subject/html/text).
Code2 (n8n node - Parsing): Safely parses the JSON output from the OpenAI n8n node, handling potential markdown fences and providing a robust fallback mechanism.

• Send a message (Gmail n8n node): The final action, utilizing the HTML and subject generated by the AI to deliver the daily brief to the recipient.