levo
Log inStart

Data Security, Cryptography and Attack

Attacks, defence and penetration testing

  • 3 things to know
  • A2 Unit 4

Overview

Spear phishing, SQL injection and brute force login attack.

What you need to know

Answer each one before you reveal it.

Your recallNot started
Key term

What makes a distributed denial of service attack harder to stop?

Key term

What is SQL injection?

Key term

How is SQL injection prevented?

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    What is phishing?

    Model answer

    Deceiving a user into revealing credentials or data by impersonating a trusted organisation, usually by email or message.

  2. 2

    What is spear phishing?

    Model answer

    Phishing tailored to one individual using details about them, which makes it far harder to recognise.

  3. 3

    Why is social engineering often combined with a technical attack?

    Model answer

    Persuading one person to open a file or hand over a credential supplies the access that the technical attack then exploits, which is cheaper than defeating the controls directly.

  4. 4

    Why is social engineering effective against a well-defended system?

    Model answer

    It bypasses the technical controls entirely by persuading someone authorised to act on the attacker's behalf.

  5. 5

    What does a denial of service attack achieve, given that it steals nothing?

    Model answer

    It makes a service unavailable, which costs the owner revenue and reputation and can be used as extortion or as cover for another attack.

  6. 6

    What makes a distributed denial of service attack harder to stop?

    Model answer

    The traffic comes from many compromised machines at once, so it cannot be blocked by refusing one source.

See the rest and revise

Other ways to work this

The same content, four other ways.

What is inside Levo

Six ways to work the same material.

1Closed book
2Open book
3Closed book

The 3-step method, run for you

Answer cold, learn it, then prove it stuck. Levo tracks the jump between your first attempt and your last.

Hardware: Architecture, Memory and Storage
Networks and Data Transmission
Logic Gates and Boolean Algebra
Data Representation and Data Types

Cram a whole paper in one sitting

Sort every topic into what you know and what you do not, then drill only the weak ones.

Fetch, , execute.
decodecompilestore

Blank Blitz makes facts automatic

Rapid timed gap-fills on the terms and numbers you need to recall without thinking.

AEncryption is reversible.
BThe stored form could be decrypted.
CA hash cannot be reversed.

Build It gets the exam shape right

Assemble a full-mark answer from its marking points, in the order an examiner wants them.

A bit is a single binary digit.
TrueFalse

Test It catches misconceptions

Spot the fault in a statement. The traps are the mistakes students actually make.

721941163128510

Brain Breaks between sessions

Short focus games to reset attention, so the next set lands better than the last.

Every question in Data Security, Cryptography and Attack, on a schedule.

Attempt a question from memory, write the correct version, then attempt it again. Levo records the jump between your first attempt and your last, and brings each question back on the day you are due to forget it.

Start revising, £5 a monthSee how the method works

Or £46 a year, about £3.83 a month. Cancel anytime.