---
id: 4621
title: "Should I Domain Join Backup Servers?"
source_domain: projectblack.io
source_url: "https://projectblack.io/blog/should-i-domain-join-backup-servers/"
published_at: "2026-07-19 08:06"
tags: ["active-directory", "backup-security", "ransomware", "windows", "backup", "hardening", "security-architecture", "blast-radius"]
phying_url: "https://phying.com/item/4621"
lang: en
---

# Should I Domain Join Backup Servers?

## Summary

Should backup servers be domain-joined? Project Black says no: exposed backup files yield password hashes, and attackers with domain admin target backups first — isolate them from production AD.

## Intelligence Metadata

- **Sources:** projectblack.io
- **Published:** 2026-07-19 08:06
- **Original:** https://projectblack.io/blog/should-i-domain-join-backup-servers/
- **Phying News:** https://phying.com/item/4621