Language Selection

English French German Italian Portuguese Spanish

Spam, spam everywhere -- How can we control it?

Filed under
Security

Spammers get e-mail addresses from a variety of sources, Laplante says. "Robot" harvesters traverse the Web and collect e-mail addresses posted on Web sites. Spammers share email lists with each other and obtain legitimate lists under false pretenses. They can randomly generate e-mail addresses too -- all they need to know is the domain name (e.g. "anywhere.com") and they can create random combinations of user IDs until they hit real users.

"Anytime you give your e-mail address in exchange for free information posted to the Web it becomes fair game for the spammers," says Laplante. "Finally, even when you give your e-mail address to a legitimate correspondent or business partner, it might inadvertently end up in the hands of a spammer."

Even though spammers know that most recipients delete the e-mail without reading it, and that spam filters and bad addresses keep many of their e-mails from reaching their intended targets, spamming can still be very profitable. Sending spam isn't free -- there are costs involved in obtaining the addresses, preparing the lists, sending the e-mails, supporting the spam site, etc. -- but the cost of doing so is quite low, probably around 1/100 of a cent per e-mail sent. If only one e-mail in 100,000 yields a successful business transaction, depending on the product, the profit can be significant.

So, how do you stop getting so much spam? Well, there is no way to prevent spam completely, says Laplante. This is an "arms race" and the spammers develop counter-measures for every new technique developed to stop them. But you can reduce spam by taking a number of precautions.

First, use and aggressively maintain whatever spam-blocking feature your mail client provides. Microsoft Outlook has a pretty good spam filter if you maintain the rules database faithfully. There are commercial spam-blocking products, too, and some freebies, but this is not the place for an analysis of these. Also, stop giving away your e-mail address so freely. If you don't have to give your e-mail address in exchange for "product updates," don't do it.

Be careful how you post your e-mail address to your Web site. If it is posted in text format, a harvester will eventually grab it. You can embed your e-mail address in an image -- this makes it nearly impossible for a harvester to find it.

Finally don't ever buy a product introduced to you via spam. If the economics didn't work out for the spammer, they would stop doing it. Unfortunately, there are always suckers out there who can't resist a "bargain."

Source: Penn State

My Source.

Spam good!

Well it cant be all bad, I mean I gotta bigger unit from those pills I ordered , refinanced my home which I should be able to pay off when I get that money from the guy who had those millions of dollars hidden in a secret account and needs to transfer it the US!

re: Spam good!

lolol. Has that unit helped with all the lonely housewives and nymphomaniacs that wanted to meet you? Of course, I blame nazi Germany! Big Grin

----
You talk the talk, but do you waddle the waddle?

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.

More in Tux Machines

GNOME Recipes and Outreachy

  • Recipes for you and me
    Since I’ve last written about recipes, we’ve started to figure out what we can achieve in time for GNOME 3.24, with an eye towards delivering a useful application. The result is this plan, which should be doable.
  • Outreachy (GNOME)-W5&W6
    My plan was altered in this two-week, because the strings of GNOME 3.24 have not frozen yet and the maintainers of Chinese localization group told me the Extra GNOME Applications are more necessary to be translated than documents, so I began to translate the Extra GNOME Applications (stable) during this period.
  • [Older] Outreachy (GNOME)-W3&W4
    During this period, I finished the UI translation of GNOME 3.22, I’m waiting to reviewed and committed now, and I met some troubles and resolved them these days.

Home Recording with Ubuntu Studio Part One: Gearing Up

Twenty years ago, the cost of building a studio for the creation of electronic music was pricey, to say the least. The cost of a computer that was suitable for multimedia production could cost the average musician between $1,000 and $2,000. Add in the cost of recording software, additional instruments and equipment, and one could easily spend between $5,000 and $10,000 just to get started. But nowadays, you do not have to break the bank to start making music at home. The price of personal computers has dropped substantially over the past two decades. At the time of this writing, it is possible to get a notebook PC that’s suitable for audio production for around $500. Other pieces of equipment have also dropped in price, making it possible to build a functional recording studio for around $1,000. (Read the rest)

Leftovers: Gaming

Red Hat and Fedora