Hi Sly,
It's me again... crime and violence are everywhere, not just here in Brazil. I have lived in São Paulo and several other cities here in Brazil. Despite the fact that it is the fourth largest city in the world and largest in South America it is certainly nowhere near as bad as the situation in Rio de Janeiro. In fact, I have never had any problem in the years that I have lived in São Paulo, unlike other places where I´ve lived.
Certainly, you need to take precautions in order not to MAKE yourself a target. To be truthfull, most crime here in Brazil are crimes of oppertunity, careless victims making themselves stand out or look vulnerable. Follow the advice below and I´m sure you will, like me, be able to say 10 years from now that you too have never had a problem with crime and violence.
Safety Tips
Learn and use only the Portuguese language in public... you will not stand out that way.
Dress down / Dress Brazilian - shorts (baggies), sandals or flip-flops, T-shirts, tank tops, etc. are the ORDER OF THE DAY here.
Do not wear expensive watches or other jewelry, don't carry expensive cameras out in the open.
Get to know the city you will be living in, find out what areas you can frequent in safety any time day or night (these still exist) and which areas to avoid at night unless you are part of a group. Favelas, generally speaking gringoes are not too welcome in nor would they venture into favelas unless they are accompanied by a Brazilian who either resides in, or has family in, the favela. If you do NEVER TAKE A PHOTOGRAPH IN PUBLIC, this could be extremely dangerous.
Money - carry only as much money with you as you will need for what you plan doing, never carry large amounts of cash. Never take your wallet out and count your money in public, that is inviting trouble. If you are making a purchase have a bit more that you anticipate the price in your pocket, use that to pay for the purchase. Separate the cash you do carry, some in your wallet, some in your pocket, some inside your sock, etc.
ATM transactions and credit card transactions - NEVER use an ATM in an isolated area at night, if you need to make an ATM withdrawl at night look for a machine in a busy location such as a major gas station/convenience store. During the day most ATM transactions are safe, but you must take certain precautions. When you are keying in your PIN code ALWAYS hide the numbers you are entering (using your other hand), many machines have fake fronts installed that skim the magnetic info on your card when you put it in the card slot and a micro-camera positioned to see the keys you press when entering your PIN. If the ATM looks at all unusual or has anything you don't like the look of DON'T USE IT. Make sure there is nobody hanging around either outside or inside the bank watching those making transactions. When paying for anything by credit card, never let the card out of your sight. If a waiter or service station attendant has to swipe your card for the transaction and doesn't have a portable/wireless terminal then go with him or her to process the transaction. There are card readers that record your information and your card gets cloned. If the transaction is on the old paper forms, make sure to ask for the carbon paper and not leave it behind for somebody to read.
Documents - make certified copies of all your important documents, passport, visa, birth certificate, etc. and carry only the certified copies around with you... your CPF or RNE and if you drive here in Brazil your licence are about the only original documents you will need to carry with you.
Follow these simple rules and you will be just fine and you'll love Brazil as much as I do.
Regards,
James