ICDL IT Security study materials
ICDL IT Security study resources

ICDL IT Security study plan

ICDL IT Security · Give each week a clear focus.

8 weeks · About 6 hours per week

Week 1

Security concepts & Malware and threats

  • Define the CIA triad and classify five everyday scenarios under confidentiality, integrity, or availability

  • Distinguish between vulnerabilities, threats, and risks using three original examples

  • List the main malware categories (virus, worm, trojan, ransomware, spyware) and state one distinguishing behavior for each

  • Explain how social engineering differs from technical attack vectors

Your checkpoint

A one-page glossary of 15 security terms with a self-written example for each

Week 2

Malware and threats & Security concepts

  • Describe how ransomware encrypts files and outline the correct response steps for an infected machine

  • Identify phishing, smishing, and vishing attempts from written message samples

  • Explain the role of updates and patching in reducing malware exposure

  • Compare signature-based and behavior-based malware detection

Your checkpoint

A written incident-response checklist of at least 8 steps for a suspected malware infection

Week 3

Network and internet security & Security concepts

  • Explain what a firewall does and where it sits in a home or office network

  • Distinguish HTTP from HTTPS and describe what a TLS certificate proves

  • Identify the risks of public Wi-Fi and list three mitigations

  • Describe how a VPN protects traffic in transit

Your checkpoint

A labeled diagram of a small home network showing router, firewall, devices, and encrypted vs unencrypted traffic paths

Week 4

Network and internet security & Access control and data protection

  • Explain encryption at rest versus encryption in transit with one example each

  • Distinguish authentication from authorization

  • Describe multi-factor authentication and classify three factors as knowledge, possession, or inherence

  • Explain why password reuse across sites is dangerous and how a password manager reduces that risk

Your checkpoint

A 10-question self-quiz on network and access-control concepts, scored and reviewed for weak areas

Week 5

Access control and data protection & Malware and threats

  • Apply the principle of least privilege to a shared-folder permission scenario

  • Compare role-based and attribute-based access control at a high level

  • Explain how backups (full, incremental, differential) support recovery from ransomware

  • Describe the 3-2-1 backup rule and evaluate a given backup setup against it

Your checkpoint

A written access-control policy for a fictional 10-person team covering roles, permissions, and backup schedule

Week 6

Safe and responsible use of IT & Network and internet security

  • Evaluate the privacy and security implications of oversharing on social media

  • Explain what personal data is collected by browsers and apps and how to limit it

  • Describe safe practices for downloading software and verifying its source

  • Outline the risks of using unlicensed or pirated software

Your checkpoint

A personal digital-hygiene audit checklist with at least 10 items and a pass/fail rating for your own habits

Week 7

Safe and responsible use of IT & Access control and data protection

  • Explain legal and ethical responsibilities when handling other people's personal data

  • Describe how to recognize and report a data breach internally

  • Apply safe disposal practices for old devices and storage media

  • Explain the purpose of data-retention limits and consent

Your checkpoint

A short written procedure (1 page) for reporting a suspected data breach, including who to notify and what to record

Week 8

Security concepts & Malware and threats & Network and internet security & Access control and data protection & Safe and responsible use of IT

  • Review all five domains using missed-question logs from prior weeks

  • Re-explain the ten weakest concepts aloud without notes

  • Complete two timed mixed-domain practice sets and analyze errors

  • Consolidate a final one-page summary sheet of key definitions and rules

Your checkpoint

A final one-page summary sheet plus a scored 40-question mixed practice test with a written error analysis

Milestones

Week 2: Can explain the difference between a virus, worm, trojan, and ransomware and name the correct first response to ransomware without notes

Week 4: Scores at least 70% on the self-written network and access-control quiz and can explain MFA factors and encryption in transit vs at rest

Week 6: Can apply least privilege and the 3-2-1 backup rule to a new scenario and has completed the personal digital-hygiene audit

Week 8: Scores at least 80% on the 40-question mixed practice test with all missed items logged and re-explained