Using a VPN, or virtual private network, is one of the best ways to protect your online privacy. We review dozens every year, and these are the top VPNs we've tested. I’ve been writing about ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Gordon Scott has been an active investor and ...

Blockchains are the critical infrastructure underlying cryptocurrencies. The common feature of these distributed ledgers is the sequential updating of a cryptographically secure, verifiable ...