Cyber security Flashcards

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1
Q

What is cyber security?

A

-Preventing hackers from gaining unauthorised access to computers and protecting devices from malware.

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2
Q

What is penetration testing?

A

-The process of attempting to gain access to a computer’s resources without knowledge of usernames and passwords, etc.

  • White box = internal attempts with knowledge of system
  • Black box = external attempt to hack with no knowledge of system.
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3
Q

What is a virus?

A

-Malware that infects a computer, and then replicates itself to be passed onto another computer.

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4
Q

What is trojan?

A

-It appears to be a harmless piece of software that contains malicious code inside. When uploaded the malware infects the computer,

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5
Q

What is shouldering? How do we prevent it?

A
  • Looking for information physically

- Cover your hand when typing pin and be aware of your surroundings

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6
Q

How does biometrics prevent threats?

A

makes use of your physical characteristics which are unique to you.

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7
Q

How does CAPTCHA prevent threats?

A

challenges humans to provide they are human and not a robot

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8
Q

What is removable media and why is it bad?

A
  • Storage devices that can be removed from a computer.
  • Eg: USBs, DVDs
  • If removable data contains malware it will attempt to move onto a computer and any other device when inserted.
  • This can lead to viruses reaching several devices on a network.
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9
Q

What is pharming? How do we prevent it?

A
  • Users are directed to fake websites and are asked to enter personal details
  • Check URL if it has a green padlock if it does it is a verified website
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10
Q

What is shouldering? How do we prevent it?

A
  • Looking for information physically

- Cover your hand when typing pin and be aware of your surroundings

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11
Q

What is malicious code and why is it bad?

A
  • Software written to harm or cause issues with a computer.
  • AKA Malware
  • Used to steal data
  • Examples: Viruses, Trojan, Spyware
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12
Q

How does biometrics prevent threats?

A

-Makes use of your physical characteristics which are unique to you.

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13
Q

How does CAPTCHA prevent threats?

A

-Challenges humans to provide they are human and not a robot.

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14
Q

How does software updates prevent threats?

A

-It helps fix patches in the program so there are no weaknesses for anyone to invade into the system.

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15
Q

Name all the prevention techniques

A
  • Passwords
  • CAPTCHA
  • Email confirmation
  • Biometrics
  • Software updates
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16
Q

What are misconfigured access rights and why is it a risk?

A
  • Access rights set up what can/can’t be seen when someone logs into a system.
  • If access rights are misconfigured people may have permission to see and read data, like emails, that they shouldn’t be able to.

-This has ethical issues as it may lead people to break the law

17
Q

What is removable media and why is a risk?

A
  • Storage devices that can be removed from a computer.
  • Eg: USBs, DVDs
  • If removable data contains malware it will attempt to move onto a computer and any other device when inserted.
  • This can lead to viruses reaching several other devices connected on a network