Term 1 System Security Flashcards

1
Q

Where does the word malware come from?

A

It is made from the words MALicious and softWARE (malicious means intending to do harm)

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2
Q

What is phishing?

A

Sending bogus emails to get users to enter their personal data

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3
Q

What is a brute force attack?

A

A trial and error way to get information such as a password

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4
Q

What is an SQL injection

A

Putting code into a web-form to get access to the database

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5
Q

What is adware?

A

Software that shows you lots of adverts

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6
Q

What is a virus?

A

A piece of code which copies itself and often harms the system or destroys data

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7
Q

What is packet sniffing?

A

Intercepting data travelling across networks

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8
Q

What is a DOS attack?

A

A Denial of Service attack or DOS attack is where a server is flooded with traffic to prevent it working properly

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9
Q

How can you prevent a brute force attack?

A

Lockout policies - lock you out after 3 attempts, longer and stronger passwords, staff training and reCAPTCHA tools prevent brute force attacks

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10
Q

How can you prevent phishing attacks?

A

disabling pop-ups, staff training and strong security software can all help prevent phishing attacks

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11
Q

How can you prevent a Denial of Service (DOS) attack?

A

A good network policy and monitoring network traffic, a strong firewall and packet filtering on your router can all help prevent a DOS attack.

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12
Q

How can you prevent data interception and theft?

A

Staff training, encryption of data, staff training and network forensics can all help prevent data interception and theft.

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13
Q

What is a dictionary attack?

A

It is a form of brute force attack using all the words in a list.

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14
Q

What is a Trojan?

A

Named after the Trojan Horse it is a container designed to deliver software that allows unauthorised access to a network.

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15
Q

Which law made hacking illegal?

A

The 1990 Computer Misuse Act

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16
Q

What makes a password strong?

A

having lots of characters and including capital letters, lower-case letters, numbers and non-alphanumeric characters (such as £@#&%) make a password stronger

17
Q

What does ransomwear do?

A

Holds your data hostage or threatens to publish it

18
Q

what is a firewall?

A

Software to prevent unauthorised access

19
Q

What are common signs of phishing e-mails?

A

Poor spelling, poor grammar, threats, asking you to click a link, a bogus e-mail address for the sender are all signs of phishing