Security

Security

1. Loss of data

   • Hacking
     • unauthorized access or modification of data from inside or outside of the company
   • Viruses
     • malicious software that can steal, delete or encrypt data
   • Technical Breakdown
     • damaged server
   • Interception
     • digital communication can be intercepted and data can be stolen by competetors
   • Physical Theft
     • someone nabs a memory stick full of sensetive data
   • Discarded Components
     • old laptops can still contain valuable data on the hard drive

2. protection from data loss or unauthorised access

   • Access levels
     • give each user a different level of access. lower down wont be able to access classified data
   • password design
     • some systems require stronger passwords than others
   • encryption techniques
     • data can be encrypted so that only those who have the key can access
   • Backups
     • if data is lost or destroyed a back up is always a good thing to have so u dont feel the urge to jump off a bridge
   • Archiving
     • when data is no longer frequently used it can go to the archive

3. compression

   • loseless compression is what it sounds like
   • lossy compression is what it sounds like , you might lose quality in photos or videos
   • compression ratio, if a 10mb file is compressed to 2mb the file compression ratio is 5:1

4. Firewalls

   • used to prevent viruses from recieving / transmitting data

5. Antivirus

   • used to detect and remove viruses that spread through a network

6. 2FA

   • 2 stages of verification to access an account

7. malware

   • malicous software

8. worm

   • like a virus but spreads by replicating its self

9. key loggers

   • software put on a device to record all key strokes

10. DOS attack

    • multiple requests made on a server at once can make a server crash and fail

11. social engineering

    • find passwords from being a baller

12. phishing

    • an email is sent, supposedly from a bank