Chapter 8

• Health risks


  Risks to health when using the internet
• Health risks


  • Back and neck pain
  • Repetitive strain injury (RSI)
  • Eye strain
  • Headaches
  • Ozone irritation
• Preventing back and neck pain

  1. Using adjustable chairs

  2. Using adjustable screens
• Preventing repetitive strain injury (RSI)

  1. Taking regular breaks

  2. Using special keyboards and mouses

  3. Using voice activated software
• Preventing eye strain


  1. Using a less flickering screen

  2. Using an anti-glare screen
• Preventing headaches


  1. Keeping distance between eyes and screen

  2. Fixing lighting

  3. Using a filter monitor or glasses
• Preventing ozone irritation


  1. Using proper ventilation

  2. Using an inkjet printer

  3. Housing the laser printer in a separate room
• Safety risks


  Risks to safety when using the internet
• Safety risks


  • Electrocution
  • Trailing wires
  • Heavy equipment falling
  • Electrical over-surge
• Preventing electrocution


  1. Using a residual current breaker (RCB)

  2. Avoiding drinks near the computer

  3. Checking wire insulation
• Preventing trailing wires


  1. Using wireless connections

  2. Organizing and tucking wires
• Preventing heavy equipment falling


  1. Using strong desks

  2. Placing equipment in the middle
• Preventing electrical over-surge


  1. Using low voltage devices

  2. Not overloading sockets
• 1. safety


  Safety when using the internet
• Personal data


  Any data concerning a person which can be used to identify them
• Types of personal data

  • Sensitive data (ethnic group, political view, religion, criminal activity)
• Hacking


  Gaining unauthorized access to a computer system
• Preventing hacking


  1. Using firewalls

  2. Using strong passwords

  3. Using intrusion detecting software
• Phishing


  Sending a legitimate looking email with an attachment or link to redirect to a bogus website
• Smishing


  SMS phishing
• Vishing


  Voicemail phishing
• Farming


  Installing malicious code on a user's computer or web server to redirect them to a fake website
• Preventing farming


  1. Using anti-spyware software

  2. Being alert
• Spyware and keylogging software


  Software that gathers data by monitoring keyboard inputs
• Preventing spyware and keylogging


  1. Using anti-spyware software

  2. Using touchscreen technology
• Malware types


  • Viruses
  • Spam
  • Cookies
• Viruses


  Program code that can replicate itself to delete or corrupt files
• Preventing viruses


  1. Installing anti-virus software

  2. Being cautious when opening unknown sources

  3. Avoiding unknown senders
• Spam


  Unwanted emails sent in bulk
• Preventing spam


  1. Using a spam email filter

  2. Avoiding signing up for mailing lists

  3. Unsubscribing from unknown mailing lists
• Cookies


  Small files or codes stored on a user's computer to form an anonymous user profile
• Firewall


  Software or hardware that checks incoming and outgoing traffic and warns of potential threats
• SSL (Secure Socket Layer)


  Allows data to be sent and received securely over the internet
• TLS (Transport Layer Security)


  Similar to SSL, provides encryption, authenticity and data integrity
• Encryption


  Protecting data against hacking or illegal access by making it meaningless