CYBER LIBRARY
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BUILD YOUR FOUNDATION

Your first steps in cybersecurity

Start with the ideas that make everything else click. Follow the sequence or open any note that catches your interest.

8 connected notes25 min reading
01
MILESTONE 1 OF 3

The big picture

0/2 read
  1. 01
    Security essentials · 3 min

    What is cybersecurity?

    Explore what cybersecurity protects, how prevention and recovery fit together, and where beginners can start learning.

  2. 02
    Security essentials · 3 min

    The CIA triad

    Use confidentiality, integrity, and availability to explain security failures, set practical requirements, and understand tradeoffs.

02
MILESTONE 2 OF 3

People & permissions

0/3 read
  1. 03
    Security essentials · 3 min

    Threat, vulnerability, and risk

    Separate the possible source of harm, the weakness, and the potential consequence.

  2. 04
    Security essentials · 4 min

    Phishing

    Recognize deceptive requests, verify them through trusted channels, and understand what to report after interacting with a message.

  3. 05
    Security essentials · 3 min

    Authentication

    Understand how authentication verifies an account, how login sessions work, and why recovery and multifactor methods matter.

03
MILESTONE 3 OF 3

Systems & defenders

0/3 read
  1. 06
    Security essentials · 3 min

    Least privilege

    Design access around necessary actions, resources, and duration, with examples of service permissions and temporary administration.

  2. 07
    Connected systems · 3 min

    Computer networking

    Follow a browser request to understand network paths, switches, routers, and the difference between connectivity and permission.

  3. 08
    Detection & response · 3 min

    Security operations centers

    A team and operating model for finding and responding to security problems.

Keep connecting the dots.

Follow another path or take your next question into the library.

Find your next direction
Start with a concept. Follow its connections.
Detection & responseAbuse Elevation Control MechanismElevation-control abuse bypasses or misuses mechanisms governing privileged execution.Making change happenAcceptance criteriaDefine observable conditions for a deliverable to be accepted.Security essentialsAccess controlUnderstand subjects, resources, permissions, and enforcement through a shared-drive example, including how access changes over time.Detection & responseAccess Token ManipulationAccess token manipulation changes or adopts operating-system security contexts.Risk & resilienceAccount Access RemovalAccount access removal disrupts legitimate users by changing, deleting, or restricting their identities.Evidence & investigationAccount DiscoveryAccount discovery enumerates identities available in a system or environment.Detection & responseAccount ManipulationAccount manipulation changes identity settings to preserve or expand access.Adversarial thinkingAcquire InfrastructureInfrastructure acquisition obtains domains, servers, or other resources used to support operations.Adversarial thinkingActive ScanningActive scanning probes target infrastructure to learn reachable services or weaknesses.Security essentialsAdversary in the middleAn intermediary may observe or alter a communication path.Security essentialsAESA symmetric block cipher whose safe use depends on its mode and implementation.Making change happenAgile deliveryUse short feedback cycles to adapt toward a useful outcome.
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