system threats

system threats

1. malware

   • software written to infect software and commit crimes such as fraud and identity theft
   • the computer may crash or reboot or slow down spontaneously
   • to prevent this businesses could train there staff to know the signs of malware
     • or enable OS updates
     • or back up files regally
     • or strong security software

2. phishing

   • Phishing is an online fraud technique used by criminals to entice you to disclose personal information such as usernames, passwords and credit card details by disguising as a trustworthy entity in an electronic communication.
   • • the effects of phishing are .Accessing a victim’s account and withdraw money or purchase merchandise or services. •or maybe Open new bank or credit-card accounts in a victim’s names, and use the new account to cash illegitimate checks or purchase merchandise.
   • to prevent fishing you could Accessing a victim’s account and withdraw money or purchase merchandise or services.
     • • or Staff training: never disclose personal or financial information.
     • • or Staff training: disable pop-ups.
     • •or Staff training: awareness of spotting fake websites & emails.

3. brute force attack

   • A brute force attack is a trial and error method used by programs to decode encrypted data such as passwords or Data Encryption Standard keys, through exhaustive effort rather than employing intellectual strategies.
   • • the affects are Theft of data or Access to corporate and private computer systems.
   • to prevent this you could • Network lockout policy: locks out after a number of tries
     • or • Challenge response tests e.g. reCAPTCHA – user has to look at a picture and answer a question.
     • or • Staff training: using effective passwords that contain symbols and numbers.

4. Deniel of service attack

   • Flooding a server with useless traffic causes servers to become overloaded preventing them responding to legitimate client-server requests from users
   • • this could Revenue losses: downtime affects profits. Based on industry surveys, the average cost of downtime is over £4000/minute
   • to prevent this you could • Strong security software (firewall).
     • or • Packet filters on routers.
     • or • • Configuration of the webserver.
     • or • Good network policy: audits, logs, monitoring.