Goggle has surreptitiously announced, via an update to its financial services related ad policies, that cryptocurrency - related ads on its services will be banned before long. As both public and regulatory bodies have become increasingly aware of cryptocurrencies ' successes and shortcomings, the company has decided to take a stance until the as- of - yet deeply unregulated cryptocurrency field becomes clearer for users, and is less of a methaporical minefield. While blockchain is one of the most promising technologies in recent years.