Identify one possible effect of a DOS - You can't access the network / site and the website is slow, What is a Denial of Service attack - When the server is flooded with requests that make it crash, What is phishing - An email sent to a people purporting to come from a genuine organisation asking them to click on a link, What are two clues that will help you recognise that you are being phished - It may contain SpaG andnot be addressed to you personally, What is the purpose of phishing - Ro obtain personal / financial information and install spyware, Explain how SQL injections work - Malicious code enterd into a website form to modify the SQL statement when executed resulting in access to the data., Explain how SQL injections can be prevented - Validation on user input- Checks that is does not contain SQL statements, Explain what is meant by a brute force attack - Using trial and error to crack a password, Identify 2 steps that can be taken to protect against a brute force attack - Limit amount of attempts tried on a password and use strong passwords, What external hazard does a firewall software protect a computer from - Hackers, What is encryption - Scrambling plain text so that it can not be read or understood without the key, What is social engineering - People being tricked into breaking security protocols, What is a trojan horse - Malicious software disguised as something useful, What is spyware - Piece of software that records actions and sends this data to a third party, How do you prevent a trojan horse - Running anti-malware software and not clicking on unknown sources, How do you prevent spyware - Running anti-spyware or installing a firewall, What is interception/ passive attack - When data is intercepted by a third party, How do you prevent interception - Encryption, What is hacking and how do you prevent it - Unauthorised access to a system. Firewall, strong passwords and biometrics can help prevent it, How can you prevent social engineering - Strong passwords, access rights and checking the validity of the source., What is pharming - A piece of code that directs you to fake website, How do you prevent pharming  - Anti-malware and firewall,

Network Security

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