How Do Spammers Get My Email Address?
Spammers seem to have supernatural powers of divination that enable them to guess email addresses accurately and quickly. But in reality, spammers harvest email addresses by pretty mundane means. You may even be contributing to the problem without realizing it. Here's the scoop on how spammers get email addresses, and steps you can take to protect your inbox...
Is Your Email Address Vulnerable to Spammers?
It can be maddening when your email inbox gets a fresh load of spam dumped into it. Equally frustrating is when spammers spoof your address as the sender, and your friends all start asking why you're sending them unwanted sales pitches for dubious products. Understanding how spammers get ahold of your email address can help to prevent both of these problems.
Using web-crawling "spider" programs (not unlike the ones Google uses to index Web pages) spammers hunt down email addresses by looking for the telltale "@" symbol. Working swiftly and ceaselessly, spiders can harvest millions of email addresses automatically. To avoid being bitten by a spider, avoid putting your email address on the Web. If you must make your email address visible in public, you can obscure your address by avoiding the "@" symbol, i.e., use "joe at blow dot com" instead, or create an image with the address instead.
"Dictionary attacks" are another standard way to collect email addresses. Spammers generate emails to made-up addresses, accepting millions of bounce-backs in exchange for a handful of replies from valid addresses. That's why the first rule of dealing with spam is "don't reply to it." Doing so just tells the spammer that you are a "live one" and worth hitting with more spam.
You can make it harder for a dictionary attacker to guess your address by NOT choosing any combination of dictionary words, common first or last names, and a string of numbers. If your email address is email@example.com or firstname.lastname@example.org I can guarantee that you'll get loads of spam, no matter how careful you are. Those addresses are just easy targets, because they're so easy to guess.
With apologies to Jimmy Buffett, some people claim that there's a hacker to blame, but you know, it's your own damn fault sometimes. Many people simply hand over their email addresses, no questions asked, just to get access to a contest, some free program, a ringtone, or other supposed "valuable prize." It's a good idea to have a "throwaway" email address that you can enter into Web forms, rather than using your everyday address.
And if you have an email password that's easily guessable, spammers may hack into the email account and steal all of the contacts stored there. If your computer is not adequately protected from viruses, spyware and phishing attacks, all of the people in your email address book are vulnerable to spam attacks as well. See my article Is Your Password Hacker Proof? for help picking a secure password.
Some people believe that email forwards play into the hands of spammers, because they accumulate a large number of addresses as the message spreads from one person to another. I'm not so sure this actually works, because there's no mechanism for the bloated messages to return to the spammer. But I will certainly agree that blindly forwarding every silly story doesn't contribute anything positive to the Internet. Cambodian midgets fighting lions? Nigerian prince wants your help transferring money? Really?? If you're tempted to forward something that seems dubious, check it out on Snopes.com before hitting the Send button.
Hacking into a major company's databases can yield millions of high-quality email addresses at once, not to mention even more valuable data such as credit card numbers, Social Security Numbers, etc. Not long ago, the online shoe store Zappos was hacked, and 24 million email addresses were exposed. And in April of 2011, Epsilon, which provides email marketing services to over 2000 large companies, was hacked. This resulted in about 100 million email addresses being published on underground websites. There's not much you can do to prevent this, except hope that the companies you do business with have good security protocols in place.
Spammers also trade in lists of email addresses. A list of a million addresses goes for as little as $100. Some online crooks don't even mail spam, but make their living harvesting and trading email addresses.
It's almost impossible to hide your email address from spammers completely. At the least, you'll probably get a blind dictionary attack spam, eventually. But think before you give your email address to any website. The fewer entities that have your email address, the less spam you will receive. Keeping your own computer secured, and encouraging your friends and family to do likewise will also help.
Got any additional tips for keeping your email address safe? Post your comment or question below...
This article was posted by Bob Rankin on 8 Feb 2012
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Article information: AskBobRankin -- How Do Spammers Get My Email Address? (Posted: 8 Feb 2012)
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