Spam
Spam is the use of electronic messaging systems to send unsolicited bulk messages indiscriminately. While the most widely recognized form of spam is e-mail spam , the term is appliedto similar abuses in other media: instant messaging spam , Usenet newsgroup spam , Web search engine spam , spam in blogs , wiki spam , online classified ads spam, mobile phone messaging spam , Internet forum spam , junk fax transmissions , social networking spam , television advertising and file sharing network spam. It is named for Spam , a luncheon meat, by way of a Monty Python sketch in which Spam is included in almost every dish.
Spamming remains economically viable because advertisers have no operating costs beyond the management of their mailing lists,and it is difficult to hold senders accountable for their mass mailings. Because the barrier to entry is so low, spammers are numerous, and the volume of unsolicited mail has become very high. In the year 2011, the estimated figure for spam messages is around seven trillion. The costs, such as lost productivity and fraud, are borne by the public and by Internet service providers , which have been forced to add extra capacity to cope with the deluge. Spamming has been the subject of legislation in many jurisdictions.
1. It is always a good idea to use digitally signed emails to encrypt all outgoing emails.such a strategy will that an attacker will not able to sniff the email contents wits the help me sniffer.
2.corporation should diable the mail relaying option on the mail server to reduce he not completely prevent any misuse by attacker for email forging purposes 3.one should be careful while opening attachments to any virus infections worm.
3.one should avoid using their email address to register for online contets sweepstakes and groups instead it is advisable to create separate email account that is only used for such purposes.this strategy can reduce the number me unsoilcited spam emails one can receives on dialy basis.
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