Gcse ocr computer science network threats.

What are different types of malware

Trojan - software performing tasks that you want it to do but could be installing malicious data in the background like a virus.

Ransomeware- Software that encrypts data meaning that it cant be accessed.

spyware- Spying on users like their emails and their search history in order Gain sensitive info.

virus- Data attached inside of files which can be spread causing harm in the computer.

worm- Can form on their own and spread themselves across a computer system to infect it.

What is Phishing and how can it be prevented

using social media like emails to people where they can click on a link where they will take details and have access to your login.

Phishing emails aren’t to hard to spot so this can be prevented by training staff to be able to notice them and not to click on them.

What is usb memory stick and how can it be prevented

Using a usb memory stick to bring a file into a system which can Bring malicious data into a system which can lead to data loss.

this can be prevented by disabling usb ports so that you actually cant run them.

What is shoulder surfing and hoe can it be prevented

Somebody looking over you and spying on your details.

This can be prevented by covering with your hand when entering a password or being clear of your surroundings when entering a password.

Not updating software

Updating software gives security patches to fix any known weakness if you don’t do it it is easier for you to be exploited. making you more vulnerable.

To stop this you must have policies to always update software when given the option.

What is physical access and how can it be prevented

Physical access is having easy access to an area with sensitive data so it is easily in vulnerability. in order to stop this areas of sensitive data should be locked and required of passes.

What is a brute force attack and how can it be prevented

Trying every single combination of passwords to get into a network. uses automated software for combinations

This can slightly be prevented by entering a strong password and keeping software updated.

System protection - Firewall

The fire wall will check data and if it detects a packet with a problem it will drop it to protect network from unknown data. (ports are shut down)

System protection - anti-malware

removes viruses from infecting the system by putting it into quaretine.

System protection- Strong password

Hard to decrypt meaning less vulnerable.