Which Two-factor authentication methods are available at which exchanges? Bitcoin Stack Exchange

Get via App Store Read this post in our app! Which Two-factor authentication methods are available at which exchanges? I see that Mt. Gox now supports the Google Authenticator app (on Android, iOS – iPhone, iPad, iPod Touch, and on Blackberry) for 2-factor authentication (in addition to support for Yubikey, of course).

Examining the Bitcoin Address Graph – Deep Dot Web

Bitcoin is by far the most popular unregulated, decentralized cryptocurrency. Since the genesis block was mined, the number of bitcoin users has been rising at a rather exponential rate. While bitcoin’s public ledger offers high levels of transparency, it does not directly reveal the real-world identity of either the senders or receivers of bitcoin transactions.