helix2301 writes: "Hackers broke into keypads at more than 60 Barnes & Noble bookstores and made off with the credit card information for customers who shopped at the stores in the last month. At least one point-of-sale terminal in 63 different stores was compromised recording card details. Since discovering the breach, the company has uninstalled all 7,000 point-of-sale terminals from its hundreds of stores for examination." Link to Original Source
I've never been canoeing before, but I imagine there must be just a few
simple heuristics you have to remember...
Yes, don't fall out, and don't hit rocks.