Threats to data security
- Created by: ellaburwod
- Created on: 24-02-16 14:26
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- Threats to data security
- What is a computer Virus?
- A programme that replicates and spreads
- Infecting files that are accessible by another computer
- Attempting to make a system unreliable
- Trojan
- They either: copy themselves, Steal information, harm hosts computer.
- Appears to be wanted by the user
- Gives full control of your PC to another PC
- Worm
- Programme that replicates to spread to other computers.
- Cause harm by consuming bandwith
- Physical Threat
- Loss of threat of memory sticks or portable PC devices
- Phising
- Pretending to be a reliable source eg. bank
- Usually email, instant message, fake website
- Spyware
- Change computer settings, Slow down internet speeds.
- Hidden from user- difficult to detect.
- Install software or redirect web browser to other website
- D.O.S
- Stop users using the website.
- What can Online Criminals do?
- Hack into network
- Use email to chat and bully
- Create fake websites
- Infect computer system with spyware
- Used spam to scam
- Data Encryption
- Changing phrase into symbols
- What is a Firewall?
- It controls what can and cant pass through software or hardware/
- Anti virus and Anti Spam software
- Detect a virus and stops it before it does harm to the computer.
- Automatic updates
- Constantly changed and updated to keep PC safe
- When PC connected to internet it is checking for updates
- Good as the user doesn't have to remember
- Constantly changed and updated to keep PC safe
- Manual Updates
- Owner has to search for updates
- Means computer could be left with no updates
- What is a computer Virus?
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