More companies should avoid their CFOs being easily searchable, Calvert says, by making sure those "about us" pages are not indexed, or making the names of their personnel graphics instead of text on a page.
Mind the social media gap
Big event coming up? Something that people will tweet about obsessively? Hackers will show up, too.
"The bigger the event, the more people following it on social media, thus the more potential victims," says Epstein.
Proofpoint analyzed branded social media destinations linked to events like the NFL playoffs/Super Bowl, Valentine's Day and March Madness. They found malicious content customized specifically for delivery to the events' massive audiences.
Sometimes these lures are posted on a brand's Facebook page. That happened on the National Football League's Facebook page during the Superbowl. Proofpoint also found more attacks on top U.K. brands, which are 20 percent more active than those in the U.S. but also suffered 60 percent more spam.
This just isn't bad for a brand's image, but could also make a brand liable for any attacks posted to their pages, no matter who posted them.
"Online is a microcosm of the real world," says Epstein. "If you're in the real world, you're responsible for the safety of people in your store or building. The same is true online. You are responsible for your visitors."
Less is more (more effective, that is)
While attacks are getting more specific and targeted, Proofpoint found that the overall volume of messages was down in the first half of 2015. Media daily volume of unsolicited messages dropped over 30 percent from January to June 2015.
This isn't something to celebrate, though. What's still making it through is much more efficient at getting what it wants than all those messages promising to wire you money or improve the function a certain part of your anatomy.
"Follow the money," says Epstein. "If I can make a couple of bucks off each person I get to click on an ad for fake drugs or what have you, that's much less profitable than simple stealing money."
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