Following a low of $6,800, the price of a single bitcoin spiked by $1,000 in less than one hour.
The financial world has been divided about betting on bitcoin.
Crypto-mining extensions are being used by digital crooks to create virtual money.
Monero, an "experimental" cryptocurrency, is popular with extremists and criminals who seek to operate outside of the eye of law enforcement.
City officials confirmed the FBI and DHS have been notified of the cyberattack.
The blockchain is a distributed public ledger of cryptocurrency transactions.
Dorsey was speaking at an event for his company Square in London's British Library.
The price of bitcoin plunged by $700 in a matter of hours.
An IT employee at Florida's Department of Citrus was arrested after mining the agency's computers for cryptocurrencies.
Developer Qbix says the Calendar 2 application had two separate security bugs.
The cryptocurrency platform said the mystery hackers were "well organized."
Bitcoiin brand ambassador Steven Seagal was granted Russian citizenship by Putin in 2016.
The price of bitcoin tumbled to under $10,000, half of what it was worth only three months ago.
Move over Nigerian email scam, fraudsters have a new sneaky trick.
Most crypto is immune to manipulation thanks to the powers of blockchain.
Priscilla Moriuchi, a former U.S. National Security Agency officer, reveals how Kim Jong Un funds his nuclear and missiles program despite sanctions.
More than a dozen companies involved with cryptocurrencies are under investigation.
Bank of England chief Mark Carney says crypto needs regulation—here's why.
Its founders want create an online nation for people who follow plant-based diets.
The Microsoft founder once said bitcoin was "better than currency."
The debate still rages about the real Satoshi Nakamoto.
Because it's a Schedule I drug, the DEA won't allow it to be manufactured. Even for research.