Monthly reminder for newbies: The Bitcoins you store on an exchange ARE NOT YOUR BITCOINS – they are an IOU. If you hold a decent amount of bitcoins, please make the intelligent decision NOW to transfer your coins to a secure mobile or hardware wallet that you control.

Hacks on exchanges are rare, but they happen. Freezing of exchange-accounts can happen. The point of bitcoin is to be your own bank, a bank that no one can shut-down. The only way to be your own bank is to control your bitcoins yourself.

Popular mobile wallets (great for beginners) include: Breadwallet for IOS, Mycelium for Android. Also, if your phone is rooted, please research how this affects security on mobile devices.

Hardware wallets (gold-standard of security after a bit of research) include: Ledger, Trezor, and Keepkey.

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Bitcoin

How many monthly bitcoin users are there now? (reddit.com)

I am looking for statistics and have not seen a reliable estimate. Bitcoin transaction volume daily has steadily grown over the years, but this does not necessarily mean the number of users is growing. Can someone provide an estimate with data to show how large the community is currently. I am looking for the # of people who have bought/ sold/ used bitcoin in the last 30 days.

Bitcoin