System Security-updated

System Security-updated

1. Types of attack

   • Malware
     • Spyware
       • Secretly moniters the uses actions eg. key presses
     • Trojans
       • Malware disguised as ligit software
     • Keyloggers
       • Were the keys are moniterd so they can get info like passwords etc
     • Virus'
       • They attach by coping themselves to files
       • They are then spread and opening infected files activate them
     • Ransom ware
       • these encrypt all the files and the user is then told to pay alot of money to get the key
       • Without paying the files are all lost so many do
     • Malware is a software that can harm devices
     • They can do this by: deleting/modifying files, scareware, virus', worms etc.
   • Denial of Servise
     • DoS- were the hackers do not want people to access a spceific webpage
     • They flood the network with so much traffic the network is very slow and then crashes
     • This can happen when a network get so much ligit traffic it crashes, eg when tickets are on sale
   • Brute Force
     • An attack that uses software to crack passwords etc
     • they do this by trying everything that it could be one by one
   • Social Engineering
     • This is a way or illegally accessing data by influwencings people and using them
     • People often are the weak link in computer security
   • Phishing
     • This is were people send emails to accounts claiming to be a ligit business, sometimes there's a virus in the email other times you spend money there but its not the real site or give private details
   • Pharming
     • A website set up to look like a ligit business' one to get private details. Internet users are directed to this bogus site unknowingly thinking its the real one

2. How to prevent an attack

   • Network Policy's
     • This is a set of rules and procedures set out by company's to protect there networks, has things such as, rules about which passwords are ok, To prevent vanrabilitys
   • Passwords
     • Making shore that the passwords are strong
     • Each person with access keeps there passwords safe, dosnt' tell anyone
     • A strong password has a mix of letters, symbles, and numbers
   • Firewalls and anti malware
     • These act as bounsers checking every thing that go's out and in the network
     • They identify and stop any malisus suff come on to the network
   • Encryption
     • This is were the data is translated into a code, this means that even if it is intersepted by a hacker, then they can not understand what the data is.
     • only someone (or computer) who the data is intended for, knows what the key is and therefore they are the only ones that can decrypt the data
   • Penetration testing
     • This is were companies hire people to simulate attacks to find flours before a black hat hacker