Their studies so far have been to check that the technique is safe.

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But then I thought maybe he should check his eyes, go back to square one and look at his technique.

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Far more common--but still damaging--are the high-volume crime spikes, spam e-mail distribution and "phishing, " a pernicious technique for stealing credit-card information. (For more on online scams, check out "Where The Scammers Are".) The carnage is hard to pin down in dollar terms, but Marcus Ranum, chief security officer of Tenable Security, says it's "billions upon billions"--far more than all "major" hacking incidents combined.

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