Google Workspace Phishing Protection
FreeStrengthen your Gmail security against phishing threats.
Free · Opens the source repo
What Google Workspace Phishing Protection does
Implementing Google Workspace Phishing Protection equips administrators with the tools necessary to enhance email security within their organization. This skill focuses on configuring advanced settings in the Google Admin Console, specifically targeting phishing and malware threats that can compromise user accounts and sensitive information. By enabling features such as Enhanced Pre-Delivery Scanning and attachment protection, organizations can significantly reduce the risk of falling victim to phishing attacks.
The skill guides users through a structured workflow that begins with enabling essential phishing protection settings. Administrators can protect against domain spoofing and impersonation through specific configurations that quarantine or flag suspicious emails. Furthermore, the implementation of Enhanced Safe Browsing ensures that users are protected from malicious links in real-time, adding an extra layer of security. The skill also emphasizes the importance of enrolling high-risk users in Google's Advanced Protection Program for robust security measures.
With prerequisites including a Google Workspace Business Standard license and administrator privileges, this skill is tailored for IT professionals responsible for email security. It provides a comprehensive approach to building a secure email environment, aligning with compliance requirements and organizational security policies. By following the outlined workflows, administrators can effectively manage email security settings and respond to potential threats in a timely manner.
This skill is particularly valuable for organizations looking to bolster their email security posture, especially those that handle sensitive information or operate in regulated industries. It not only streamlines the configuration process but also enhances the overall security architecture, making it easier for teams to implement best practices in email security.
When to use it
Use this skill when setting up or enhancing email security measures in Google Workspace, particularly for organizations facing phishing threats.
When not to use it
This skill is not suitable for users without administrative access to Google Workspace or those on lower-tier licenses that do not support advanced features.
What you can build with it
Configuring Email Security Policies
Use this skill to set up advanced email security policies in Google Workspace, ensuring that your organization is protected against phishing and malware.
Enhancing Security for High-Risk Users
Enroll high-privilege users in the Advanced Protection Program to provide them with the strongest account security available.
Conducting Security Assessments
Leverage this skill during security assessments to ensure that your organization's email security measures are robust and compliant.
How to install Google Workspace Phishing Protection
View source1. Install with the skills CLI
npx skills add mukul975/anthropic-cybersecurity-skills/implementing-google-workspace-phishing-protection --agent claude-code2. Or install it manually
Download the skill folder and drop it into ~/.claude/skills/ for all projects, or .claude/skills/ to scope it to one repo. Restart Claude Code so it picks up the new skill.
Anthropic's agentic coding CLI, and the reference implementation of Agent Skills. Drop a skill folder into ~/.claude/skills and Claude Code loads it automatically whenever a task matches the skill's description. Claude Code docs
Inside SKILL.md
Written by mukul975Implementing Google Workspace Phishing Protection
Overview
Google Workspace provides advanced phishing and malware protection through the Admin Console under Apps > Google Workspace > Gmail > Safety. Key features include Enhanced Pre-Delivery Scanning that examines messages more thoroughly before they reach inboxes, attachment and link protection that scans for malware and checks against known malicious sites, and spoofing detection for domain and employee name impersonation. Google's Advanced Protection Program (APP) provides the strongest account security for high-privilege users.
When to Use
- When deploying or configuring implementing google workspace phishing protection 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
- Google Workspace Business Standard or higher license
- Gmail Settings administrator privilege
- Understanding of organizational email flow and third-party integrations
- Access to Google Admin Console (admin.google.com)
- DNS management access for SPF, DKIM, DMARC configuration
Workflow
Step 1: Configure Advanced Phishing Protection
- Navigate to Admin Console > Apps > Google Workspace > Gmail > Safety
- Enable "Protect against domain spoofing based on similar domain names"
- Enable "Protect against spoofing of employee names"
- Enable "Protect against inbound emails spoofing your domain"
- Set action for detected spoofing: quarantine or move to spam with warning banner
- Apply settings to all organizational units or specific high-risk groups
Step 2: Enable Enhanced Pre-Delivery Scanning
- In Safety settings, enable "Enhanced pre-delivery message scanning"
- This adds additional delay (seconds) to scan messages more thoroughly
- Configure to detect phishing attempts that evade initial filters
- Enable "Identify links behind shortened URLs"
- Enable "Scan linked images" for image-based phishing detection
Step 3: Configure Attachment Protection
- Enable "Protect against encrypted attachments from untrusted senders"
- Enable "Protect against attachments with scripts from untrusted senders"
- Enable "Protect against anomalous attachment types in emails"
- Configure action: warn users, move to spam, or quarantine
- Create exceptions for known legitimate encrypted file senders
Step 4: Enable Enhanced Safe Browsing
- Navigate to Admin Console > Security > Gmail Enhanced Safe Browsing
- Enable Enhanced Safe Browsing for the organization (off by default)
- This provides real-time protection against phishing URLs in emails
- Configure at organizational unit level for phased rollout
- Monitor user feedback for false positive impact
Step 5: Enroll High-Risk Users in Advanced Protection Program
- Identify high-privilege accounts: super admins, executives, finance leadership
- Enroll users in Google's Advanced Protection Program (APP)
- APP requires FIDO2 security keys for authentication
- APP blocks third-party app access unless explicitly approved
- APP provides enhanced scanning for Gmail and Drive downloads
Step 6: Configure Email Authentication
- Publish SPF record:
v=spf1 include:_spf.google.com ~all - Enable DKIM signing in Admin Console > Apps > Google Workspace > Gmail > Authenticate email
- Configure DMARC with monitoring:
v=DMARC1; p=none; rua=mailto:dmarc@company.com - Progress DMARC to enforcement per organizational readiness
Tools & Resources
- Google Admin Console: Central management for all security settings
- Google Workspace Security Investigation Tool: Threat analysis and response
- Google Security Center: Security health recommendations and dashboard
- Gmail Security Sandbox: Attachment detonation for enterprise licenses
- Google Advanced Protection Program: Strongest account security
Validation
- Spoofing protection blocks test email with lookalike domain
- Pre-delivery scanning catches test phishing with delayed weaponization
- Attachment protection warns on test encrypted attachment
- Enhanced Safe Browsing blocks known phishing URL clicked in email
- APP-enrolled accounts reject non-FIDO2 authentication attempts
- SPF, DKIM, DMARC all pass for outbound messages
Frequently asked questions about Google Workspace Phishing Protection
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