Antispoofing E-mail Technology Deployed

By verifying senders' claimed identities new tricks stop spoofers in their tracks

4 min read

31 January 2005--Most savvy computer users now rely on a variety of filters to screen e-mail for phrases such as "Lower your insurance rates now!" and "Hot XXX Action!" and instantly relegate the spam to the trash can and the sender to an e-mail blacklist. But what happens when spammers go undercover?

Junk senders are adopting the strategy called spoofing, which works like germs that mutate to elude the immune system. Spoofed e-mail bamboozles people into opening it by claiming to be from some legitimate sender, such as citibank.com or whitehouse.gov. The bogus domain names often project such authority that recipients comply with the spammers' requests for confidential information like credit card numbers and secure passwords. "If I had a nickel for every time I said, "I wish I could trust the sender," I'd be rich," says Miles Libbey, Yahoo! Inc.'s antispam product manager.

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Why Functional Programming Should Be the Future of Software Development

It’s hard to learn, but your code will produce fewer nasty surprises

11 min read
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A plate of spaghetti made from code
Shira Inbar
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You’d expectthe longest and most costly phase in the lifecycle of a software product to be the initial development of the system, when all those great features are first imagined and then created. In fact, the hardest part comes later, during the maintenance phase. That’s when programmers pay the price for the shortcuts they took during development.

So why did they take shortcuts? Maybe they didn’t realize that they were cutting any corners. Only when their code was deployed and exercised by a lot of users did its hidden flaws come to light. And maybe the developers were rushed. Time-to-market pressures would almost guarantee that their software will contain more bugs than it would otherwise.

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