Blackmailed for Bitcoin – exchange rebuffs $3.5m ransom demand – Naked Security

Cryptocurrencies are a big deal once again, now that Bitcoin is back over $10,000.

You might think that’s good news for cryptocurrency exchanges, which are businesses that let you trade regular money, such as Euros, Dollars and Pounds, into and out of so-called virtual currencies like Bitcoin, Monero and Dogecoin.

But it’s not all plain sailing – cryptocurrency companies are of particular interest to cybercrooks, and not only for the cryptocoins they hold.

Here’s a story of super-sized digital blackmail aimed at one of the biggest exchanges out there.