He suggests that SMBs immediately delete spam, and unsubscribe from e-mail subscrptions you're no longer interested in. He also reminds SMBs to "be selective" about where you register your e-mail address online, and don't publish your e-mail address on the Web, suggesting using an alternate address -- perhaps even a disposable address -- for mailing lists and so on.
And he says to never click on "suspicious" links in e-mails or IMs. Good point, but how do you determine which links are suspicious?
In addition, Harnet advises SMBs to not open spam messages. If you open them, don't reply to them. If you reply, don't provide any personal information, and for heaven's sake don't buy anything from them.
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