Communication over the network with advertisements (advertised address removed) Sometimes spam distribution network via the built-in Microsoft Windows SMB-service Messenger. These messages appear as pop-ups (unless a third-party software, manufacturing them in other ways). In this case, to turn off their admission may be, for example, to stop the Messenger service using net stop messenger . In versions of Windows NT, beginning with Windows XP SP2, this service has already stopped by default, so this method of distribution are less likely to occur. SMS-messages Spam can be spread not only through the Internet. Advertising messages sent to mobile phones via SMS-messages, especially the unpleasant fact that they are difficult to defend. Collect email addresses Spammers find out the email addresses of users in
different ways. Some of them are: Address mailbox user posted on the public site – mostly in the guest book, forum, personal card, etc., where it can find a special program (harvester), Scanning indexing sites such as search engine robots. If the address of the mailbox is not unique word, for example, common name, it may be chosen for the dictionary. Do spammers have special dictionaries that include common words, names of people, place names and some of the most popular combination of network slang. Combining this dictionary and a list of domain names (open public), a spammer gets a list of addresses for mailing.
If you are a person with whom the owner of this correspondence box was infected with a Trojan program, all the addresses from its address book can get to a spammer. The database of customers a company could be stolen or even sold by the company spammers. Harmful Mass mailing of spam is low cost to the sender for a message. However, a huge number of useless messages cause obvious harm to the recipients. The first refers to the time spent wasted on unnecessary screening mail and vyiskivanii among its individual letters to the right. Very often the Internet traffic is very expensive, and you have to pay for apparently unnecessary emails.
It is believed that the spam could be beneficial for providers, as well as lead to increased traffic. In fact, providers also have additional costs due to increasing the useless burden on the channels and equipment. It is the providers have to spend resources on redundant hardware and the system of protection against spam. According to publicly available statistics , at least 80% of chain letters is currently spam (according to some research on a web user now account for 70 spamovyh messages per day ). Most of its mail servers shall be shut off during the reception. But even the remaining small part is sufficient to aggravate the lives of users.
Providers bear additional costs because of the constant need to fight spammers (excess equipment, excess capacity channels, a special software for spam). Spam is also harms the reputation of adherents of this method of marketing. A simulation of the spam mailing can be used to discredit the good (which it is advertised) and / or carrier, with which it addresses (supposedly or really) done, that is, spam can be used in unfair competition and «black» PR