Netiquette IQ Blog of The Day - Have I Been Pnwed?

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For those of you not familiar with the term "pwned", it comes from a computer game and if it is referring to personal information, it means compromised. There are increasing numbers of identity theft with no end in sight. Theft can be an email address, vital statistic, history or account mubers and passwords. Here is a list of recent ones. If you do business with any of these companies, it is prudent to change your password immediately.
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From.www.haveibeenpwned.com

30 pwned websites

163,653,98 pwned accounts

152,445,165 Adobe accounts
4,609,615 Snapchat accounts
1,247,574 Gawker accounts
1,057,819 Forbes accounts
859,777 Stratfor accounts
855,249 Manga Traders accounts
530,270 Battlefield Heroes accounts
453,427 Yahoo accounts
227,746 Cannabis.com accounts
202,683 Win7Vista Forum accounts
191,540 hackforums.net accounts
158,093 Boxee accounts
148,366 WPT Amateur Poker League accounts
116,465 Pokemon Creed accounts
104,097 Insanelyi accounts

56,021 Vodafone accounts
55,622 Spirol accounts
45,018 Lounge Board accounts
38,108 Pixel Federation accounts
37,784 Muslim Directory accounts
37,103 Sony accounts
36,789 BigMoneyJobs accounts
35,368 Fridae accounts
28,641 hemmelig.com accounts
26,596 Business Acumen Magazine accounts
20,902 Bell accounts
16,919 Verified accounts
5,788 Astropid accounts
3,200 UN Internet Governance Forum accounts
2,239 Tesco accounts

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Multicasting from techterms.com

Multicasting is similar to broadcasting, but only transmits information to specific users. It is used to efficiently transmit streaming media and other types of data to multiple users at one time.

The simple way to send data to multiple users simultaneously is to transmit individual copies of the data to each user. However, this is highly inefficient, since multiple copies of the same data are sent from the source through one or more networks. Multicasting enables a single transmission to be split up among multiple users, significantly reducing the required bandwidth.

Multicasts that take place over the Internet are known as IP multicasts, since they use the Internet protocol (IP) to transmit data. IP multicasts create "multicast trees," which allow a single transmission to branch out to individual users. These branches are created at Internet routers wherever necessary. For example, if five users from five different countries requested access to the same stream, branches would be created close the original source. If five users from the same city requested access to the same stream, the branches would be created close to users.

IP multicasting works by combining two other protocols with the Internet protocol. One is the Internet Group Management Protocol (IGMP), which allows users or client systems use to request access to a stream. The other is Protocol Independent Multicast (PIM), which is used by network routers to create multicast trees. When a router receives a request to join a stream via IGMP, it uses PIM to route the data stream to the appropriate system.

Multicasting has several different applications. It is commonly used for streaming media over the Internet, such as live TV and Internet radio. It also supports video conferencing and webcasts. Multicasting can also be used to send other types of data over the Internet, such as news, stock quotes, and even digital copies of software. Whatever the application, multicasting helps reduce Internet bandwidth usage by providing an efficient way of sending data to multiple users.