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Comment by aviv | Hacker News Reader

Never ever keep coins at an exchange. You have been warned. It's insane to let them hold it.

That doesn't really have much to do with it. The whole point of USDT is that it's supposed to be backed by real dollars. If it turns out that it's a lie then USDTs will crash, regardless of where they are.

You could hold USDT in your own wallet but the problem would remain.

Obligatory matching advice: https://youtu.be/dnC5mFaIW3Q

The full seminar is worth watching as well:

“How do I secure my bitcoin?” — Andreas Antonopoulos https://youtu.be/vt-zXEsJ61U

What is the best practice then? Mind sharing?

I am not sure about the "best". One way is getting a hardware wallet like Leger Nano S[0]. It doesn't support "all" coins but popular coins like BTC, ETH, BCH, XLM, LTC, NEO etc are supported.[1]. I use it and it's convenient, so far.

[0]: https://www.ledgerwallet.com/products/ledger-nano-s

[1]: https://www.ledgerwallet.com/cryptocurrencies

Or a Trezor [1].

Funny how the price of both products has gone up. I purchased a Ledger Nano S (unused as of now) for about 70 EUR. Now its 95 EUR, with "Shipping is scheduled from March 26". This chart on Amazon (regarding Trezor) is also telling [2]. I guess people wanna join the hype bandwagon. On the official website the Trezor is 89 EUR "without VAT". Which is illegal to advertise in NL unless you're specifically targeting businesses (who prefer to not have VAT mentioned).

A disadvantage of the Ledger Nano S is that in order to use it, it requires Chrome [3]. I'm not sure that's true for Trezor. It also has a Chrome extension but iI seems it can function with just the "bridge" [4]

[1] https://trezor.io

[2] https://www.amazon.com/Trezor-bitcoin-wallet-Black/dp/B00R6M...

[3] https://www.ledgerwallet.com/apps/manager

[4] https://wallet.trezor.io/#/

I thought that the Ledger works natively with wallets like Electrum? https://support.ledgerwallet.com/hc/en-us/articles/115005161...

I was a bit put off by the Chrome Apps too, but it hasn't been a problem in my actual use. Also they're writing non-Chrome apps now because of Google end of life-ing Chrome Apps. I'd love to get a Trezor as well but they want me to pay an extra 20 EUR to get one or wait until after February.

Also for the hardware hackers there is the Coldcard being developed by these guys with a pre-order now: http://blog.opendime.com/coldcard-annoucement/

Keep them anywhere where you control the key, ideally with a seed that you can write down and store safely. If you're a bit paranoid, wallets like Electrum also support multi-sig wallets.

You can store them on paper wallets.

Only way to be 100% secure is to not buy cryptocurrency.

Only way to be 100% secure is to have nothing of any value to anyone.

For the rest of us, there's risk management.

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