Network Security Encryption L3
Network Security Encryption
Learning objective
Lesduur is: 50 minOnderdelen in deze les
Network Security Encryption
Learning objective
Do now: In your own words, what is social engineering and what is 1 example
Do now answers
Social engineering is a set of methods used by cybercriminals to deceive individuals into handing over information that they can use for fraudulent purposes.
Examples:
Shouldering
Phishing
Blagging
Name generator attack
The following email doesn’t contain a hyperlink to click on, but it does include suspicious information.
Think/pair/share:
Try to find a minimum of three things that make this email suspicious.
Blagging
‹#›
Activity 2
Suspicious punctuation in email (‘Dear <name?>’)
Blagging
‹#›
Activity 2
Spelling mistakes (‘deer friend’)
Unusual use of English (‘a excitable business opportunity’)
Blagging
‹#›
Activity 2
Blagging doesn’t only happen via email.
Encryption
Strengthening - Define the term encryption and explain why its used.
Excelling - Solve encryption based puzzles to find a killer
Keyword: Encryption
Encryption is the changing of data so that it can no longer be easily understood
What kind of data do you think we need to encrypt?
Why do we encrypt data?
We encrypt data to protect it from people that might intercept and steal the data, even when they steal it they cant read it.
Banking details
Passwords
Text messages – or any app messages like whatsapp
Browsing habits
Emails
Records about yourself – medical/student
What is encryption?
A way to Save files
A type of computer virus
A way of hiding information
A type of computer
Which of these pieces of personal data would we most likely to encrypt.
Name
Age
Social media post
Password
Who created the first method of encryption?
Julius Caesar
Genghis Khan
Alexander the Great
Napoleon Bonaparte
What was the purpose of Caesar's encryption?
To write poetry
To confuse the enemy
To entertain his soldiers
To protect military orders
What could happen to Caesar's messages?
They could be intercepted
They were ignored
They were never sent
They were always understood
Who Killed Mr Burns????
Mr Burns has been murdered!!!!!!!!!!
The murderer has left some encrypted clues mocking your ability to solve the crime.
Use the riddle to help you get started with clue 1.
Start with the number of hours in a day
Add the number of days in a week
Subtract the number of sides on a cube
Multiply by the number of hands on a standard clock.
Divide by the number of toes on a typical human foot
Cross off your suspects with the result of each clue
Who was the killer???
Phishing or blagging?
‹#›
Watch this video
Questions
What is the difference between phishing and blagging?
Was what happens on this video phishing or blagging?
What about the email made it suspicious?
Activity 2
