It's from the website Just the Flight, which put together an impressive chart here of 40 travel scams to be aware of. Most are overseas scams, but they could hit anywhere you're traveling. What I like, too, about the chart is that it's coded for where the scams are more prevalent.
It's a good collection. And I suspect that even if you were on your guard against all 40 of them, some of these are so well-devise that it would be hard for at least a couple not to sneak through. If one lesson came be gleaned from the chart, it's probably "Don't ever check to see where you put your wallet." And from that is the codicil -- Put your wallet someplace as difficult to get at as possible, even if it's inconvenient for you. Like perhaps a front pocket with things on top of it.
I tried to embed the chart on the page, but this is the best I could manage. But to see it a wee bit better, just click on the link above.