building-phishing-reporting-button-workflow skill
Implement a phishing report button (Microsoft 365 built-in Report button
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Install the building-phishing-reporting-button-workflow skill
A skill is a folder. Copy it into your agent's skills folder and the agent loads it when the task matches its description.
git clone --depth 1 https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git /tmp/Anthropic-Cybersecurity-Skills mkdir -p ~/.claude/skills cp -r /tmp/Anthropic-Cybersecurity-Skills/skills/building-phishing-reporting-button-workflow ~/.claude/skills/building-phishing-reporting-button-workflow
In the Claude apps, zip the folder and upload it from the Skills settings. The folder on GitHub
The instructions your agent would load
SKILL.md as published, without the frontmatter. Read it on GitHub
Building Phishing Reporting Button Workflow
Overview
A phishing reporting button empowers users to flag suspicious emails directly from their email client, creating a critical feedback loop between end users and the security operations center. Microsoft's built-in Report button is now the recommended approach, replacing the deprecated Report Message and Report Phishing add-ins. When combined with automated triage using SOAR platforms, reported emails can be classified, IOCs extracted, and remediation actions taken within minutes. Organizations with effective phishing reporting programs see 70%+ report rates in phishing simulations.
When to Use
- When deploying or configuring building phishing reporting button workflow capabilities in your environment
- When establishing security controls aligned to compliance requirements
- When building or improving security architecture for this domain
- When conducting security assessments that require this implementation
Prerequisites
- Microsoft 365 or Google Workspace with administrative access
- SOAR platform or automation capability (Microsoft Sentinel, Splunk SOAR, Cortex XSOAR)
- Dedicated reporting mailbox for phishing submissions
- Email security gateway with message retraction capability
- Security awareness training platform for feedback loop
Workflow
Step 1: Deploy Phishing Report Button
- Enable Microsoft built-in Report button via Security & Compliance Center
- Configure user reported settings: route to reporting mailbox and Microsoft
- For third-party: deploy KnowBe4 Phish Alert Button or Cofense Reporter
- Verify button appears in Outlook desktop, web, and mobile clients
- Configure report options: Report Phishing, Report Junk, Report Not Junk
Step 2: Build Automated Triage Pipeline
- Configure reporting mailbox monitored by SOAR platform
- Auto-extract IOCs from reported emails: URLs, attachments, sender info, headers
- Submit URLs to VirusTotal, URLScan.io for reputation check
- Submit attachments to sandbox for dynamic analysis
- Check sender against known threat intelligence feeds
- Auto-classify: confirmed phishing, spam, simulation, legitimate
Step 3: Implement Response Actions
- Confirmed phishing: auto-retract from all inboxes, block sender domain
- Confirmed spam: move to junk for all recipients
- Simulation email: mark as correctly reported, credit user
- Legitimate email: return to inbox, notify reporter
- Generate IOC report for threat intelligence team
Step 4: Create Feedback Loop
- Send automated thank-you response to reporter within 5 minutes
- Include classification result when analysis completes
- Track reporter accuracy and engagement metrics
- Recognize top reporters in monthly security newsletter
- Feed reporting metrics into security awareness training program
Step 5: Measure and Optimize
- Track mean time to triage (target: under 10 minutes automated)
- Monitor report volume trends and false positive rates
- Measure user reporting rate in phishing simulations
- Report on confirmed threats caught by user reports vs. gateway
- Optimize automation rules based on classification accuracy
Tools & Resources
- Microsoft Report Button: Built-in Outlook phishing reporting
- Cofense Reporter + Triage: Enterprise phishing reporting and automated analysis
- KnowBe4 Phish Alert Button: Integrated reporting with simulation platform
- Microsoft Sentinel: SOAR automation for triage workflow
- Proofpoint CLEAR: Closed-loop email analysis and response
Validation
- Report button visible and functional across all Outlook platforms
- Reported email arrives in dedicated mailbox within 60 seconds
- Automated triage classifies test phishing email correctly
- Auto-retraction removes confirmed phishing from all inboxes
- Reporter receives feedback notification with classification
- Metrics dashboard shows report volume and accuracy trends
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