Managing Data

Data Security Methods

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Christian Bien

Learning Objectives

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Asymmetric Encryption - Simply Explained

This video goes through how public-key cryptography works, private and public keys and other forms of encryption.

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What are the Data Security Methods?
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Under the syllabus, the following data security methods are under focus:

  • Passwords

  • Firewalls

  • Biometrics

  • Anti‐virus software

  • Digital signatures and digital certificates

  • Encryption


Passwords

A combination of characters, linked to an username (often an email), used to unlock access to certain computer resources. 


Google says a strong password contains the following:

  • Unique passwords

  • Long in length (at least 12 characters) and memorable

  • Avoids personal info or words

See more about creating a great password here (Google). 

Firewall

A hardware, software or router, that checks the incoming and outgoing data packets of a network and rejects any unauthorised data packets entering or leaving the network.

Biometrics

Unique human characteristics, used to verify the user to unlock access to certain computer resources. Biometrics can include:

  • Fingerprints

  • Eye ball

  • Voice

  • Facial recognition

Anti-Virus Software

Software installed on a device with the purpose of monitoring and removing malware. Malware is checked against a list of regularly updated virus definitions.

Digital Signatures

An electronic code, embedded in a document via public key infrastructure, with the purpose of verifying the contents of the document and the sender's identity.

Digital Certificates

An electronic passport, that uses public key infrastructure, to secure transmit data between a website and a user's device.

Encryption

Encryption is the process of encoding data, through algorithms, so it can only be read by the sender and its intended recipient. Encryption uses public key infrastructure, which consists of two keys, a public key that anyone can obtain off the web, and a private key known only by the sender and the intended recipient.

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Security Techniques for Managing Data
Types of Backup Techniques
Online Data Storage Methods
Purpose of Data Mining
Data Security Methods
User Generated Content
Hypertext Markup Language (HTML)
Concept of Web 2.0 and 3.0
Content Management Systems
World Wide Web Consortium (W3C)
Validation Techniques for Online Forms
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