1. Lesson 20

2. E-commerce Software Intershop Enfinity WebSphere Commerce Professional Edition Microsoft Commerce Server 2002

3. Back Doors And Trojan Horses

4. Virus Protection Install anti-virus software – McAfee, Norton, Dr. Solomon, Symantec Downloading of plug-ins from the internet be avoided Downloading of plug-ins should be done from the vendor’s official website Newly obtained disks, programs or files should be scanned for viruses before use Installation of a firewall may also reduce the risk of virus infiltration

5. Outside Attacks On A Network Eavesdropping/Sniffing/Snooping – ability to monitor network traffic using some kind of network-monitoring software Password Attacks – attacker is able to gain access to the network and gather information such as valid users, computer names, resources – can lead to modification, deletion or rerouting of network data IP Address Spoofing – attacker assumes a legal IP address and gain access to the network Man-in-the–middle attacks – attacker is able to monitor, capture and control data between sending and receiving devices

6. Firewalls A combination of hardware and software that sits between the internet and the internal network Protects a network from outside attack A firewall examines data leaving and entering the internal network and is able to filter the data according to the specified rules

7. Internet Organization network Fire wall

8. Types of Firewalls Packet Filter Firewall Circuit-Level Firewall Application-Gateway Firewall