Network Security Threats.

Network Security Threats.

1. Brute Force Attack

   • When all possible password combinations systemically tried, with the hope of getting it right.

2. Trojan Horse

   • Gains access to a computer by pretending to be a legitimate software. The Trojan allows unauthorised back door access to a computer without the user being aware.

3. Phishing

   • Normally an email or text message scam where victims are conned into believing that they are being contacted by an authentic organisation (like their bank) and can give sensitive personal details such as bank account passwords.

4. Spy Ware

   • Records the activity on your computer such as your keystrokes, thereby logging your passwords for instance and then sending data back over the network to attack the instigator.Spyware can be used to control your webcam and microphone.

5. Computer Viruses

   • They insert themselves in normal programs. Viruses can replicate themselves and transfer from one computer to another. They are activated by a user often as email attachments and attachments to other files and programs.

6. Worm

   • They spread like viruses but do not require human intervention. They attach themselves to network tools to spread all around a network very quickly.

7. Distributed Denial of service Attack (DDos)

   • When requests come from many sources so you cannot just block a single IP address.

8. Adware

   • Includes banners and pop ups that are automatically installed onto a computer. Whilst this does not cause any damage, Adware is undesirable and can slow down the performance of a computer.

9. Malware

   • Is a software that has been purposely developed to damage, disrupt or take control of computer systems.

10. Denial of service attack( DOS)

    • When a network resource becomes deliberately overloaded with unnecessary requests, preventing it from responding normally

11. Pharming

    • Users are redirected to a fraudulent website that they believe to be genuine because it looks like the real site. For instance you could be directed to a site that pretends to be an online shop which asks you for your credit card information.