Tag Archives: bittrex

Do Not Use Two Factor Authenticatoin with Bittrex!

My friend recently lost over 2.7 BTC on Bittrex.com due to what we think is a vulnerability of TFA (Two Factor Authentication) system on Bittrex or possibly an insider job.

Here’s the story:

Hacker takes a total of 2.7 BTC, 1999 Supercoins, and 45416 Vootcoins out using TFA near midnight July 2nd.

Now, when you have TFA enabled on Bittrex, it does not send you an e-mail confirmation unlike when you have it disabled.  If someone withdraw money, that’s it, it’s gone!

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