There are multiple ways people can store bitcoins offline, using either a paper wallet or hardware options from companies like Trezor, Opendime, Ledger, and Keepkey. However, bitcoin users can also create a bitcoin wallet on a far cheaper USB thumb drive as well to store coins offline.
Watch the video below to find out.
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https://news.bitcoin.com/japanese-cryptocurrency-exchange-btcbox-enters-hong-kong-bitcoin-markets/
By Samuel Haig - July 11, 2017 Bitcoin.com
ledger nano is awesome!
What I like more about Ledger’s Nano S is its U2F authentication compliant with other services. Sophisticated security wise worth the buy. On the other hand a simple usb flash drive could be great once you utilize the benefits of understanding its uses in comparison, but it has its consequences also. Realistically I'd rather stay with Ledger.