Which term describes information that relates to an identified or identifiable individual, such as a full name, home address or bank details?
Personal data
Which term describes scrambling a message so that anyone who intercepts it cannot understand it?
Encryption
What is a Caesar cipher?
A cipher where each letter is shifted a fixed number of places along the alphabet
What is the name for the number of places that a Caesar cipher alphabet has been shifted?
Key
What is meant by decryption?
Turning an encrypted message back into a readable message using the key
Where is data most likely to be intercepted?
While it is being sent over WiFi or the internet
What is meant by data interception?
Reading data while it travels between the sender and the receiver
Which of these is an example of personal data?
A person's date of birth and bank card details
Why is data interception difficult to detect?
The data is not changed and still reaches the receiver
A student sends a password over free cafe WiFi. Why could this password be intercepted?
The cafe's network traffic can be redirected through an attacker's device
A message is intercepted, but it was encrypted before it was sent. What does encryption achieve?
The attacker cannot understand the message they intercepted
A Caesar cipher shifts each letter 3 places forward. What does the word CAT become?
FDW
A message is encrypted by shifting each letter 5 places forward. What is the plain text of YMNX?
THIS
Why is a Caesar cipher easy for an attacker to break?
There are only 25 possible shifts to try
Which of these is a reason that criminals want to collect personal data?
To steal an identity or blackmail someone
A student encrypts a message with a Caesar cipher using a shift of 7 places. The receiver tries to decrypt it using a shift of 4 places. What will the receiver see?
A message that does not make sense
A Caesar cipher shifts each letter 5 places forward. What does the word ZAP become?