How to store an extremely high amount of money in Bitcoin safely ?

[Ceizer54]

Like you said earlier in the comments OP it's difficult for you to keep paper wallet,i am wondering how you keep your cash safely in real life? Think your paper wallet as large sum of cash and keep it in safe/bank or Just use an offline wallet and store it in PC that never gets connected to internet or any USB.These can be the only safest options i can think

[Chris_Sabian]

You think Electrum's 2FA is enough to keep safe ~200 bitcoins for me ?

Don't put all of those coins in the same address.  Use 4 or 8 addresses so that if 1 address is compromised, you don't lose all of your coins. 

[Valle]

Best option imho is to use "android bitcoin paper wallet" on totally offline phone. Just generate private key and write it BY HAND. Spending is bit cumbersome but possible offline and is not as weird as buying "two macbooks" for that.

[wadili89]

You think Electrum's 2FA is enough to keep safe ~200 bitcoins for me ?

Don't put all of those coins in the same address.  Use 4 or 8 addresses so that if 1 address is compromised, you don't lose all of your coins. 

then he will have to secure all of those 4 to 8 addresses so better store them in one address but secure is enough like i said for long long storage paper wallet will work as long as you use a good paper and ink and laminate it and secure it at safe place

[omahapoker]

Paper & offline wallets like Trezor are enough. For additional security you can maybe use Multisig as well.

[avikz]

Offline wallet is a very safe option...but make sure you have a licensed "internet security" software installed in your computer.

[Amph]

You think Electrum's 2FA is enough to keep safe ~200 bitcoins for me ?

it's not about the method used, it's about the user, if you install electrum in a infected computer with a rootkit and heavy privilege access stolen by the hacker, nothing will be safe anymore

so simply pay attention to your moves

Offline wallet is a very safe option...but make sure you have a licensed "internet security" software installed in your computer.

i can argue that a dedicated server on a separated connectiononly to run the client like it was your personal bank, can be safe as well

[SLRman]

but what if hackers can see there are 200 bitcoins on my bitcoin address ?

they will do everything possible to steal it from me..

[Altynbekova]

but what if hackers can see there are 200 bitcoins on my bitcoin address ?

they will do everything possible to steal it from me..

Than don't store your 200 bitcoins in one wallet always have more than one at least 2 so that 100 bitcoin in that other wallet. Always have a back up with your bitcoins. Do some bitcoins in paper wallet, some in offline wallet, some in a online wallet. Well good luck storing your bitcoins.

[LuckyYOU]

but what if hackers can see there are 200 bitcoins on my bitcoin address ?

they will do everything possible to steal it from me..

Than don't store your 200 bitcoins in one wallet always have more than one at least 2 so that 100 bitcoin in that other wallet. Always have a back up with your bitcoins. Do some bitcoins in paper wallet, some in offline wallet, some in a online wallet. Well good luck storing your bitcoins.

Yes what he said is true. It's best to spread the amount of bitcoins you have over several wallets if you own a bunch.
It's not safe to hold all of them in 1 wallet especially if you own bitcoins higher than 2 digits.

[a7mos]

but what if hackers can see there are 200 bitcoins on my bitcoin address ?

they will do everything possible to steal it from me..

Even if a hacker knew that you have 200 btc in a bitcoin address, s/he can not do anything with bitcoin as long as your private keys are in a safe place and you generated this address offline.
Hacking an address by guessing its priv key will take billons of years

[SLRman]

u sure?

it's a pain in the ass to deal with paper wallets.. so hard to spend money out from there

what if I purchase 3 pieces of Trezor and store the coins there ? is it safe ?

[ranochigo]

Best option imho is to use "android bitcoin paper wallet" on totally offline phone. Just generate private key and write it BY HAND. Spending is bit cumbersome but possible offline and is not as weird as buying "two macbooks" for that.

Just boot a Linux image on livecd and you can use bitaddress.org to do so.

You don't need to buy two macbooks to secure your Bitcoins effectively. If you have a old computer, you can install ubuntu with Electrum on it. You can use an online computer to download the transaction data, move it using a USB to your offline computer and sign it on the old computer. Then, bring it to broadcast on the online computer. If you don't have an old computer, a raspberry pi would do.

[amacar2]

It will be wise decision to spread your bitcoin in different paper wallets and storing them in a different pendrive with one printed copy. Than all of this in banks safety box with insurance. Don't forget to delete copy from the computer.

[Amph]

but what if hackers can see there are 200 bitcoins on my bitcoin address ?

they will do everything possible to steal it from me..

how they know that the address is your? they can not steal it directly as you think they need to infect your device or steal it , which mean that you have permitted it in some way

[BitcoinBud44]

Why not Armory?

[cluit]

A mixture of paper wallets, Trezor & Core is good enough for me.

Yes a mixture of multiple different wallets would ensure the extreme high amount in parts.
Some basic considerations.
1. Different addresses from different wallet types.
2. Manageable small amount in multiple address adds extra security.
3. Usual things of bitcoin protections:
  a. Cold storage.
  b. Never been online bitcoin address
  c. Strong encryption Password

[Coogan]

I wouldn't store a large amount of coins all in one wallet. Split them up into smaller chunks, write down the seeds of each and keep several back ups. That way you're safe and protected.

[Supercrypt]

I wouldn't store a large amount of coins all in one wallet. Split them up into smaller chunks, write down the seeds of each and keep several back ups. That way you're safe and protected.

Splitting up into small amounts of bitcoins will incur high amount of fees and managing paper wallet of multiple addresses are a headache.

See here, a single address hold how many bitcoins...
https://blockchain.info/address/3Nxwenay9Z8Lc9JBiywExpnEFiLp6Afp8v

Encryption alone is more than enough in my view.

[StevenS]

For additional security you can maybe use Multisig as well.

Multisig does nothing for you if you don't secure the private keys. If you're using a 2 of 3 multisig (typical), and store 2 of the keys is a safe deposit box, then this is the exact same security as storing the private key of a regular wallet in that safe deposit box.

In order to take advantage of Multisig (for security),  you have to store the 3 (for a 2 of 3) keys in 3 different places. For example, store one in a safe deposit box, the second in secure place at your home (e.g. a floor safe), and the 3rd with a trusted friend. Then, if any one of those 3 keys gets compromised (e.g. copied) or lost, you quickly use the remaining 2 to transfer the bitcoin to a new secure wallet.