If i recieve some dirty bitcoins (large amounts ) which is the safest way to store them in an anonymous place and then convert them into dollars? Do i need a TREZOR?
closed as unclear what you're asking by Anonymous, JohnDvorak, morsecoder Oct 20 '15 at 3:08
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Tumble into a paper wallet. Then cash out as you need. https://blockchain.info/wallet/paper-tutorial
Otherwise replace the paper wallet with trezor as you suggested.
As a note, these two options rely more on physical security than your standard wallet. blockchain.info notes: "The paper contains everything needed to spend the coins and must be kept physically secure."