MongoDB Tutorial 0/120 lessons ~6 min read Lesson 76

    MongoDB Security Basics

    Security in MongoDB starts with three defaults: enable auth, restrict network, use TLS.

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    Concept-first lesson
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    Introduction

    Security in MongoDB starts with three defaults: enable auth, restrict network, use TLS. Everything else builds on those. Atlas turns all three on for you by default; self-hosted clusters must do it explicitly.

    Understanding the topic

    • Always enable --auth in production.
    • Restrict network with IP allowlists / PrivateLink / VPC peering.
    • Force TLS on the wire.
    • Use the principle of least privilege for app users.
    • Audit + rotate credentials regularly.
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