System Security

System Security

1. Types of Malware

   • Virus - Program that is hidden within another program or file, designed to cause damage
   • Worm - Malicious program that acts independently and can replicate itself and spread throughout a system
   • Trojan - Portrayed as a legit software, but it will cause damage or provide info to the creator.
   • Spyware - Secretly passes info to a criminal without the users knowledge, and if often with free software.
   • Adware - Shows targeted ads and redirects search requests without permission.
   • Ransomware - Denies access to the user's system until they pay money to unlock it.
   • Pharming - Redirects the user to a fraudulent website by modifying the DNS request.

2. Network Threats

   • Phishing - Sending emails, claiming to be legit, and asking for them to sign into their bank or account so the criminal can gain their account details.
     • Usually a sense of panic, careless language, impersonal, false links and include suspicious attachments
   • Brute Force Attacks - A trial and error method to gain access to an account. It will usually be an automated system that will try millions of passwords.
     • Success is by luck rather than by algorithms or knowledge, this is why its called brute force.
   • Denial of Service Attack - Designed to bring a network or website to a halt by bombarding it with useless network traffic
   • Data Interception -
   • SQL Injection -

3. Encryption

4. Prevention from malware and threats