Computer Security

Computer Security

1. Encryption- Converting text to code.

   • Encryption helps you to send secret data packets using cipher. First you need to decrypt a computer by finding a key.

2. Firewall - Protects the computer from unwanted data packets.

   • Prevents harmfull data entering your coputer.
     • So that if the computer might break if a virus access computer system
   • Used to help protect a computer network from intruders.
     • People can see your computer.
   • Controls which programs can send and recevie data packets.
   • Needs updating regularly to make sure it knows the latest threads.
   • Used when program is trying to connect to another network.
   • You need to control which programmes can receive data packets as you might get a programme sent to your email. Which then could open the email up and it might be a virus.

3. Anti virus - Gets rid of virus's and protects the computer.

   • Quarantines any programs or files which are harmful.
   • Controls which programmes can send and receive data packets
   • Scans the computer periodically.
     • This is good because if you get a virus straight away your computer will detect it.
   • Protects against malicious software.
   • Should be used on emails attachments and downloads.
     • This is because people might be able to see our private documents and files.
   • it needs to be updated regularly this is because the computer might have a virus which hasn't yet been found.

4. Malware - Is a specific software which is designed to damage a computer system.

   • Zombie - A computer connected to the internet. It has been compromised by a hacker.
   • Worm - A standard malware computer programme that replicates itself in order to another computer.

5. Passwords

   • Make sure your password is something personal to you that people won't figure out easily also make sure is has a range of capital letters and numbers.

6. You need firewall\anti virus software at school, home or a business because if you don't your device might get attacked with spam or a virus causing you device to break. This is bad as you might loose all your work.

7. If you buy a product online make sure it is a ligit site. It will have https if it is secure.

   • Make sure when you open emails the website is spelt right. Even if you have to go on google and find the website on there.
     • If you're downloading a app check the reviews to make sure they are real.
       • When downloading attachments make sure the URL has https so it is secure. If the URL doesn't have https it means that it isn't genuine. When a website has https it means it has encrypted your data packets (details).
       • When signing up to a website read the terms and conditions and read the tick boxes 3 times before ticking it.

8. Phishing - Is a type of fraud. The attacker will try to learn the information such as a login. They will email you a link, some people try to trick you and they will make the link look the same but change the letters slightly or they don't use https.