Network Security Threats

Network Security Threats

1. Brute Force Attack

   • when all possible password combinations are systematically tried, with the hope of getting it right
   • Using much more stronger , password at least 8 characters , Also using numbers , Capital letters

2. Worm

   • spread like viruses but do not require human intervention. They attach themselves to network tools to spread automatically around a network very quickly.

3. Phishing

   • Phishing Normally an email or text messaging scam where victims are conned into believing that they are being contacted by an authentic organisation (e.g. by their bank) and can give sensitive personal details (such as bank account passwords).

4. Social engineering

   • Social engineering is the term used for a broad range of malicious activities accomplished through human interactions. It uses psychological manipulation to trick users into making security mistakes or giving away sensitive information.
   • The core of social engineering is human trust and confidence. Ample time and resources are spent by attackers to research about the victim.

5. Denial-of-Service Attack (DoS) and Distributed Denial-of-Service Attack (DDoS)

   • A way to prevent it is to use , a firewall to control which programs can send and receive data packets, so that only authorised users & trusted programs can access the network.

6. Malware

   • Running anti-malware software regularly
     • Using automatic software updates: up-to-date software will include patches for known vulnerabilities and up-to-date anti-malware uses the most current database of threats
     • NOT downloading software from unknown sources NOT clicking on unknown links

7. Passive attacks

   • can be detected and prevented by:
     • Using encryption
       • Using network forensics