Grade 11 ITC · Term 4 · Digital Security Textbook
Unit 1 · Security Concepts & Threats · Chapter 6

Spot-the-Phish Poster and Antivirus Demo

Week 2 · Day 3 · Benchmark 11.4.2.1 Explain core security concepts and identify common threats
Essential question

How can we help others in our community spot phishing?

Learning objectives
  • Design a poster teaching six phishing warning signs
  • Demonstrate an antivirus scan on a sample file
  • Interpret basic scan results

Overview

Awareness is the cheapest security control. A single well-designed poster in a lab or staffroom can prevent dozens of clicks. In this lesson you use everything from Week 2 to build a Spot-the-Phish poster and then watch an antivirus scan in action so you understand what the tool is really doing.

Poster Design Principles

A good awareness poster has one big headline, a short list of six signs, one clear action ('Do not click. Report to IT.'), and a memorable image. Keep text under 40 words.

How Antivirus Works

Antivirus tools compare files against a database of known malware signatures and use behavioural rules to catch new threats. A full scan checks every file; a quick scan checks common infection points.

Reading Scan Results

Green tick = clean. Warning = potentially unwanted (e.g. adware). Threat = confirmed malware, usually quarantined automatically. Never delete quarantined items without checking with IT first.

Activity

Spot-the-Phish Poster

  1. In pairs, design an A3 poster with a bold headline and six warning signs.
  2. Include one clear action step and a QR code or link for more info.
  3. Display posters around the school computer lab.
Review questions
  1. What is a malware signature?
    Reveal answer

    A unique pattern that identifies a known piece of malware.

  2. Why do we need heuristics in addition to signatures?
    Reveal answer

    Signatures only catch known malware; heuristics catch new variants by watching behaviour.

  3. What does 'quarantine' mean?
    Reveal answer

    Isolating a suspicious file so it cannot run or spread.

Take it home

Photograph your finished poster and write a 3-sentence caption explaining who it is aimed at.