Bitcoin is down roughly 20% week-over-week, around 30% from its all-time high of nearly $65,000 early last week. The market cap of the coin has dipped below $1 trillion. The tumble has been less severe for Ethereum, which hit an all-time high just yesterday but has since dropped 13% as the broader market has crawled back.
Cryptocurrency exchanges play a valuable role in creating liquid markets for popular cryptocurrencies and setting their value relative to traditional currencies. You can even trade cryptocurrency derivatives on certain crypto exchanges or track broad-based cryptocurrency portfolios in crypto indexes.

Cryptocurrency exchanges are vulnerable to cyber attacks that might result in your investment being lost forever — scams are always a possibility with cryptocurrency. Scammers frequently use social media platforms such as Instagram, Facebook and Twitter to dupe consumers into making these investments. If you believe you've been targeted, you should contact national reporting centers like Action Fraud in the United Kingdom or the Federal Trade Commission (FTC) in the United States as soon as possible.
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