Computer Security-Improved

Computer Security-Improved

1. Firewall

   • A firewall prevents harmful data from entering your computer.
   • Also it protects a computer network from intruders.This means that if data packets with dangerous software try to access your computer, they will not be aloud to enter your computer.
   • A firewall controls which programs can send or receive data packets.
   • Used when a program is trying to connect to another network.
   • The firewall will block sites before they are allowed to enter your computer so that no malicious sites are going to harm the software.Therefore if the user doesn't allow the site in it cannot be accessed.

2. Encryption

   • We use encryption to send secret data packets using a cipher to send the data packets. This means that the cipher is needed to make the secret data packet.
   • You can encrypt other peoples files with the right codes. Although first you have to decrypt the computer.
   • We make our encrypition using a cipher and make it secure so that it cannot be broken by someone.
   • Also when decrypting a data packet you need a key so that you can unerstand what it means.Therefore you can decrypt the message and figure out what the message or data is.

3. Anti-Virus

   • Anti-Virus quarantines any programs or files which are harmful.
   • Also it protects against any malicious software.
   • Scans your computer periodically.This make sure that there are no new viruses .
   • Needs updating regularly to make sure that it knows the latest threats.
   • Should be used on email attachments and downloads.
   • Anti-Virus needs to be up to to date so that if there are any new malicious websites they cannot access your computer.If the software is not updated it can mean that the viruses can access your computer easily.

4. Computer Security

   • Buying Products Online can be dangerous as you do not know what could happen to your bank details.Also some providers can be untrustworthy with certain details that you provide them with.
   • Opening emails and clicking on the links inside of them.Some of these links are scams that could ask you for some personal details. The system for this phising . You shouldn't really give them out if you don't think you can trust it.
   • If you download software that a website says is free it could be a scam.This is because they could put a virus onto your computer or hack into your personal files.
   • Downloading attachments can be good and bad.This is because the attachments can be sent via emails or on websites.Depending on the website or sender it could tell you if it is a scam or not.
   • When logging in or signing up to websites you can tell if they are trustworthy.This is because at the start of a website it should say https. This https means that it is a trustworthy website
   • When writing a secure password you should:1.Use symbols.2.upper and lower case letters.3.No family names.4.No personal information.5.Use of numbers.6. minimum amount of characters is 8.
   • Phishing is a problem because on some websites they will try to obtain your personal information. They can steal you bank details and even you passwords and identity. So they can find out your password to your personal details then steal some of it. They can send you links via email so that they can take the information the want.

5. Malware

   • Malware is a malicious software that is stopped by Anti-Virus.
   • Trojan Horse
     • A Trojan Horse disguises itself as a safe software.This is fake as you are tricked into downloading this.Once downloaded hackers can spy on you and steal all of your personal files/documents.
   • Zombie
     • A zombie is designed as a computer connected to the internet.This has been designed by a hacker.So that they can perform malicious tasks under remote direction.
   • Worm
     • A worm is a computer program that can stand alone.It replicates itself so that,it can access other computers.Using the computer network to spread around.It can only do this if there are security failures through the network.
   • Spyware
     • This is installed on the computer without the owner knowing.Then it can collect the owners private information.