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The Role of Hardware and Software in Networked Digital Systems (Securing…
The Role of Hardware and Software in Networked Digital Systems
Movement of Data
Transferring Cables
Drive
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SSD
HDD
Floppy Drive
Flash Drive
Optical Drive
Web Transfers
Emailing
FTP
P2P
Cloud Storage
Other
Faxing
Management of Data
Data Design
Binary Format
Text Format
Data Storage
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Hard Drive
Flash Memory
BIOS Settings
Digital Cameras
Handphones
Optical Media
CD/DVD
USB
Hard Drives
RAM
Data Security
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Securing of Data
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Control of Data
Restricting access
User authentication
Ownership
- user has
Security token
Software token:
Google Authenticator (Time-based OTP)
Hardware token:
ID Card
Knowledge
- user knows
Passwords
PINs
Challenge response:
CAPTCHAs
Security questions
Biometric/inherence
- user is/does
Fingerprint:
Touch ID
Voice:
ANZ Voice ID
Face:
Face ID (iPhone X)
Eyes:
Samsung Iris Recognition
Multiple-factor authentication
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Using more than one-factor of authentication (not just a password)
Storing data securely
Backing up files
Internal
Restore points
External
Local
Windows File History / Backup and Restore
macOS Time Machine
Cloud-based
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Google Drive Backup & Sync
OneDrive
Dropbox
Encrypting files
Offline
Data is encrypted using a key
Key:
Often the same as the Password or PIN to access the device
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Online
HTTPS
(Hypertext Transfer Protocol Secure)
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Key:
Either both parties have same key to encrypt & decrypt or encryption key is public for anyone to use (but decryption key isn't)
Protecting data from viruses, worms, Trojans & bots
Antivirus software
User-awareness
Stay Smart Online
Physical protection
Keeping data storage area secure
Control access to computer areas
Keeping backups in a safe place
Free of weather issues, water, etc.
Online Data Security
Example:
Websites use HTTPS to secure data in transit between the user's computer and its own computer/server. This means data sent between the two is encrypted and cannot be intercepted and deciphered. The data can only be decrypted into readable data by using a key.
Access to Data
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Sequential Access (SAM)
Tape drive
Random Access (RAM)
Computing devices
SMS OTPs:
Combine software and hardware methods
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