Updates and other decisions are made by the ‘miners’. Miners use computers or specialized hardware to generate large amounts of computer processing power, and this is used to operate the network and process transactions. In return, they receive transaction fees. They will also receive freshly generated bitcoins until the last bitcoin of the 21 million BTC supply is ‘mined.’ At the current pace of mining, this will happen in the year 2140. If Bitcoin is still around, the miners will be incentivized to do their work for the fees alone, keeping the network up and running.
In the case of Bitcoin, miners run computer programs to verify the data that creates a complete transaction history of all Bitcoin. A technology known as the blockchain, which is used to create irreversible and traceable transactions, makes the process of verification possible. Once a miner has verified the data (which comes in a block, hence, blockchain), they are rewarded with some amount of digital currency, the same currency for which they were verifying the transaction history. So mining Bitcoin, for example, would earn you Bitcoin.
If you do have this much money tied up in Bitcoin, though, you may want a more secure space to store it. If this is the case, Coinbase offers a Coinbase vault, which has time-delayed withdrawals (giving you 48 hours to cancel a withdrawal) and the option of multiple approvers, increasing security by ensuring that all withdrawals are approved by multiple people. They also offer a multisig vault, which is basically an even more involved and more secure vault, requiring multiple keys to unlock.
Since the Bitcoin creation in 2009, the price of this virtual currency remained quite stable until January 2013, reaching a maximum value of approximately 20 U.S. dollars. Afterwards a monthly price growth was observed until October 2013 when the price reached 198 U.S. dollars. This nearly tenfold increase in Bitcoin value proved to be insignificant in comparison to the price rally in November 2013, when the threshold of 1,100 U.S. dollars per coin was broken. After a period of downtrend which followed, Bitcoin price reached 1,349.19 U.S. dollars in April 2017.