Flashcards in Denial Of Service Deck (5):
What is a DOS attack?
-When a website or a network is targeted with the intention of making it unavailable to user
- Designed to hold an organisation to ransom, put a competitor out of business or he politically motivated.
What happens in a DOS attack?
- The attacker monopolises the bandwidth available to the server
- This results in the server ‘crashing’ in majority of cases as it can’t cope with the number of requests
How do you know if there has been a DOS attack?
- a network under attack may show a slowing in performance or a total loss of access
- users can’t access the server/ websites (tickets for major events going on sale)
What are the costs associated with a DOS attack?
- Revenue :
• Loss of sales due to system being down
- Repair :
• Hardware may need to be replaced e.g. - memory, hardcore, processor
- Labour :
• Takes time to rebuild system
• Detecting attack