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QR Phishing Defense Guide

detecting-qr-code-phishing-with-email-security

mukul975/Anthropic-Cybersecurity-Skills

Guides analysts through detecting and preventing QR code phishing in emails by combining image/OCR analysis, URL reputation, mobile policies, and user training to stop quishing attacks.

Gateway Spearphishing Detection

detecting-spearphishing-with-email-gateway

mukul975/Anthropic-Cybersecurity-Skills

Configure email security gateways like Microsoft Defender, Proofpoint, Mimecast, and Barracuda to detect and block personalized spearphishing attempts through impersonation protection, URL detonation, sandboxing, and custom rules for SOC investigations.

Continuous Security Validation

implementing-continuous-security-validation-with-bas

mukul975/Anthropic-Cybersecurity-Skills

Deploy Breach and Attack Simulation (BAS) platforms to continuously exercise MITRE ATT&CK techniques across production defenses, revealing control gaps in endpoints, networks, email, SIEM, and response workflows before real adversaries arrive.

DMARC DKIM SPF Setup

implementing-dmarc-dkim-spf-email-security

mukul975/Anthropic-Cybersecurity-Skills

Step-by-step guide to implement SPF, DKIM, and DMARC so administrators can authenticate outbound mail, block spoofing, and monitor compliance through DNS records and reporting scripts.

Email Authentication Audit

implementing-email-security-with-dmarc-dkim-spf

mukul975/Anthropic-Cybersecurity-Skills

Audits a domain’s email authentication by querying SPF, DKIM, and DMARC DNS records using dnspython, validating syntax/counts, flagging common spoofing risks, and producing remediation guidance.

Google Workspace Admin Security

implementing-google-workspace-admin-security

mukul975/Anthropic-Cybersecurity-Skills

Implements comprehensive Google Workspace admin hardening with FIDO2-backed MFA policies, phishing-resistant access controls, email authentication (SPF/DKIM/DMARC), DLP rules, OAuth app oversight, and external sharing restrictions for enterprise-grade cloud office defense.

Advanced Google Workspace Phishing Defense

implementing-google-workspace-phishing-protection

mukul975/Anthropic-Cybersecurity-Skills

Guide for configuring Google Workspace phishing and malware protection in the Admin Console, covering spoofing detection, pre-delivery scanning, attachment defenses, enhanced Safe Browsing, Advanced Protection Program enrollment, and email authentication to harden enterprise email security.

Proofpoint Email Security Gateway

implementing-proofpoint-email-security-gateway

mukul975/Anthropic-Cybersecurity-Skills

Guide for deploying Proofpoint Email Protection as a secure email gateway that inspects inbound and outbound mail using ML, URL rewriting, sandboxing, and automated remediation so organizations can block phishing, malware, spoofing, and spam before delivery.

Automated SOAR Phishing Playbook

implementing-soar-playbook-for-phishing

mukul975/Anthropic-Cybersecurity-Skills

Automates phishing incident handling by parsing reported emails, creating Splunk SOAR containers and artifacts, and triggering REST-based playbooks to investigate indicators and produce verdict summaries for security teams.

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