| Identity Theft | Identity theft occurs when a criminal misappropriates someone's personal information (such as social security number, credit card number, passwords, etc) for their own use. The purpose is generally to commit fraud or theft.
It is a serious and growing problem; and is likely to get worse as always-on broadband spreads to home users. Home users are traditionally less security-conscious than businesses, and many home users store personal data on their PCs with little protection. |
| Internet Protocol (IP) | The Internet standard protocol that provides a common layer over dissimilar networks. It is used to move datagrams (discrete sets of bits) between host computers and through gateways if necessary. It does not provide the reliable delivery, flow control, sequencing, or other end-to-end services that TCP provides. |
| Intrusion Prevention System (IPS) | Intrusion Prevention Systems are one of the more recent developments in the security armoury. However, how they differ from IDS or even advanced firewalls is sometimes difficult to see. This has led many commentators to dismiss IPS as merely a marketing device.
The key difference is in the naming: IDS is fundamentally designed to detect an intrusion that has already happened; IPS is designed to prevent the intrusion from succeeding. So in one sense, IDS can be seen as belonging inside the firewall, while IPS belongs at or outside of the firewall. Which means that another way of looking at IPS is as an advanced form of or adjunct to the good old firewall itself. |
| IP Address | “A numerical address allocated to identify nodes on a TCP/IP network. These addresses can be statically or dynamically allocated. In the case of dynamically allocated addresses, provision often has to be made to keep firewalls aware of which system is using which IP address...
“IPV6 will allow for more effective dynamic allocation of IP addresses. This in turn, however, may cause further traceability issues, where hackers can use an IP address for a few seconds, before changing to another.”
from Content Technologies' Guide to Content Security, 2nd Ed
An IP version 4 [R0791] address comprises a series of four 8-bit numbers separated by periods. For example, the address of the host named "a_domain.com" could be 192.11.73.10.
An IP version 6 [R2373] address is written as x:x:x:x:x:x:x:x, where each "x" is the hexadecimal value of one of the eight 16-bit parts of the address. For example, 1081:0:2:0:8:900:200B:417C and FADC:BA98:7644:3220:FEBC:BC98:7854:3910. |
| IP Spoofing | IP spoofing involves imitating a trusted IP address in order to gain access to protected information resources. One method is by exploiting source routing in IPv4. This allows the originator of a datagram to specify certain, or even all intermediate routers that the datagram must pass through on its way to the destination address. Effectively, you make the destination host think that you are a known and trusted host rather than a schoolkid on his father's laptop. |
| IRC-Worm.Family.Variant | mIRC/PIRCH/IRC scripting virus (a script virus for mIRC/PIRCH or IRC) |
| IS.Family.Variant | InstallShield Script Virus (viruses for .INF files) |
| I-Worm.Family.Variant | Internet Worm (a program that spreads using the Internet) |
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