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---
name: implementing-zero-trust-email-security
description: >-
  Implement zero trust email security including advanced threat protection, DMARC enforcement, and email authentication.
domain: cybersecurity
subdomain: zero-trust
tags:
  - email-security
  - dmarc
  - advanced-threat-protection
  - email-authentication
  - anti-phishing
version: "1.0"
author: defconxt
license: AGPL-3.0
metadata:
  mitre-attack: ["T1566"]
  cwe: ["CWE-693"]
  tools: ["proofpoint", "mimecast", "microsoft-defender"]
---

# Implementing Zero Trust Email Security

## Overview

Implement zero trust email security including advanced threat protection, DMARC enforcement, and email authentication.

## Prerequisites

| Tool / Requirement | Details |
|---|---|
| `proofpoint` | Security tooling |
| `mimecast` | Security tooling |
| `microsoft-defender` | Security tooling |
| Isolated lab environment for testing | Environment requirement |
| Authorization and signed Rules of Engagement (RoE) | Environment requirement |
| Relevant target samples or systems acquired through authorized channels | Environment requirement |

## Quick Reference

```bash
# Initialize working environment
mkdir -p /tmp/implementing-zero-trust-email-security/{output,logs,artifacts}

# Execute primary analysis with proofpoint
echo "[*] Running Implementing Zero Trust Email Security with proofpoint..."

# Validate results with mimecast
echo "[*] Cross-validating with mimecast..."

# Generate summary report
cat /tmp/implementing-zero-trust-email-security/output/report.json
```

## Workflow

### Step 1: Preparation and Reconnaissance

```bash
# Identify target and gather initial intelligence
file ./target_sample
proofpoint --version 2>/dev/null || echo "Install proofpoint"

# Set up working directory
mkdir -p /tmp/implementing-zero-trust-email-security/{output,logs,artifacts}
```

### Step 2: Primary Analysis

```bash
# Execute primary analysis with proofpoint
# Refer to Quick Reference above for detailed commands
echo "[*] Running Implementing Zero Trust Email Security with proofpoint..."

# Log all operations
script -q /tmp/implementing-zero-trust-email-security/logs/session.log
```

### Step 3: Deep Investigation

```bash
# Apply mimecast for secondary analysis
echo "[*] Deep investigation with mimecast..."

# Cross-reference findings
diff /tmp/implementing-zero-trust-email-security/output/primary.json /tmp/implementing-zero-trust-email-security/output/secondary.json
```

### Step 4: Documentation and Reporting

```bash
# Generate structured findings report
cat <<'EOF' > /tmp/implementing-zero-trust-email-security/output/report.json
{
  "technique": "implementing-zero-trust-email-security",
  "domain": "zero-trust",
  "tools_used": ["proofpoint", "mimecast"],
  "findings": [],
  "recommendations": []
}
EOF
```

## Detection

```yaml
title: Zero Trust Email Security Detection
id: d184d579-cab2-48c0-80c1-6e8e5237e96f
status: experimental
description: Detects suspicious activity related to implementing zero trust email security techniques in zero trust context
logsource:
  category: authentication
  product: windows
detection:
  selection:
    EventType: authentication
    Status: failure
  condition: selection
level: medium
tags:
  - attack.t1566
  - attack.lateral_movement
falsepositives:
  - Zero trust policy engine evaluating routine access requests
```


**Detection Opportunities**

| Indicator | Source | Detection Logic |
|---|---|---|
| Zero Trust Email Security Detection | windows/authentication | Sigma rule (medium) |
| ATT&CK Coverage | MITRE ATT&CK | T1566 |

## Verification

- [ ] Environment and tools verified and operational
- [ ] Target samples acquired through authorized channels
- [ ] Primary analysis completed with findings documented
- [ ] Secondary validation performed with independent tooling
- [ ] All artifacts preserved in structured output directory
- [ ] Detection opportunities documented for blue team

## References

- [MITRE ATT&CK T1566](https://attack.mitre.org/techniques/T1566) — Related technique
- [proofpoint Documentation](https://proofpoint.org/) — Primary tooling
- [mimecast Reference](https://mimecast.org/) — Secondary tooling
