The price of cryptocurrencies (bitcoin specifically) have generally been volatile over their short life. There are many reasons for this including market size, liquidity, and the number of market participants. Banks see this as a risk because historically, the price hasn’t been stable, so they believe the currency might not remain a stable investment vehicle over time.Banks can help mitigate the security concerns of cryptocurrency holders. Hacking of personal wallets and exchanges is a concern for many holders. Well-established banks could help secure digital currencies from theft or hacks, putting clients’ minds at ease. Bringing cryptocurrency under bank supervision could help diminish criminal activity or the appearance to outsiders that cryptocurrency transactions aren’t secure.