System Threats

System Threats

1. Malware

   • Malwear is where a fake email,link etc is put in place it works because when you get the email,link etc you are more likely to click on it. Once you have clicked on it this enables them to hake your computer and either crash your computer or find out all of your personal details.
   • It effects your computer by either hacking it or crashing it.
   • To prevent get a decent software such as AVG so that you can often search your computer for any virus that may be found on it

2. Phishing

   • It effects your computer through sending an email about your bank account.
   • 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.
   • Staff training: awareness of spotting fake websites & emails. • Staff training: never disclose personal or financial information. • Staff training: disable pop-ups.

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 (DES) keys, through exhaustive effort rather than employing intellectual strategies.
   • Theft of data. Access to corporate and private computer systems.
   • Network lockout policy: locks out after a number of tries.

4. Data Interciption

   • This attack usually involves sniffing network traffic.Wi Sniffing or eavesdropping is the act of monitoring traffic on the network for data such as plain text passwords or configuration information.

5. Denial of service attack

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