we do not share your data with anyone and there are many ways to control the visibility and storage life of your data here.
but the internet is a public space and you should always assume your data could be compromised.
be smart with your password, use tor or a vpn, and use pgp for sensitive communications.
I’ve heard a few stories like this so don’t use them to store anymore! Still OK to buy from, BitPanda is really good and simple like Coinbase. LocalBitcoins is good but the rates are super terrible on it in some countries. Sounds racist but I think they call it Kimchi tax ha! Bittylicious is another buying platform I have heard of.
There really isnt any good reason to use coinbase anymore, Besides being antiethical to little biggy and freedom in general they are also shitty with customers. They dont even take credit cards anymore. There are dozens of better substitutes these days.
what I do with coinbase is I use them just for purchasing. Then I move the coin to a wallet on a different site and I use that site to buy from. That way coinbase's 3 day delay (or any other rule) can't hurt me and my "spending" is simply a transfer to a different wallet.
You defined half of the problem. Been using them for 6 years, and at least 2 transactions every year have been "delayed", and NONE of those were justified or necessary. The last one, 2 weeks ago, bought BTC from them, went to send it to my wallet, and got a 72 hour "clearing" warning. Why? To "protect" me. Their answer was "it's a new address...". Why the f**k should they care what BTC address I send to??? So yeah, 3 days is great, but not when you want it TODAY and you paid for it TODAY.
You got to look at it from the other side to make any sense out of it. VCs have hundreds of millions to deploy in this space. The easiest way to do this is throw a few million at each idea without wasting time on finding the best ones.
On 1 August 2017 a parallel universe was born out of a singularity. We call this a fork. Everything was identical for 1 moment but then the 2 branches: bitcoin (btc) and the new bitcoin cash (bcc) became different currencies with different futures.
It's noteworthy that it had a market cap in the billions from launch. You could call it hype cycling but when you realize what it is: a clone of a proven currency with an agenda to lower fees and serve everyday users then it's not so hard to understand.
If there is a mass buy or sell circumstance then you sure have volatility and network overload. However speed can also be effected by miners taking something like an "industrial action", big miners start raising fee requirements and slowing the network down.