The search giant also announced new restrictions on advertisements for other financial products. The ban on cryptocurrency-related ads follows a similar move by advertising competitor Facebook.
The Securities and Exchange Commission has sent dozens of subpoenas in recent months to cryptocurrency companies that promote "initial coin offerings."
Japanese cryptocurrency exchange Coincheck shut down trading Friday, after hackers stole hundreds of millions of dollars in digital currency. Financial regulators said they were looking into the loss.
The Securities and Exchange Commission is worried about the rise of new ways to invest in digital currencies like bitcoin. Regulators warn of potential "fraud and manipulation" in proposed funds.
Zoobia Shahnaz, 27, allegedly bought more than $60,000 in cryptocurrency, got a $22,000 loan and then transferred the money abroad. The Justice Department says she intended to join ISIS in Syria.
President Nicolás Maduro says Venezuela will use the "petro," backed by oil reserves and other natural resources, to defeat a financial blockade on his country.
Reports in Wired and Gizmodo pull on various threads to say they may have finally unearthed the identity of the secretive bitcoin creator. The man has drawn attention from Australian tax authorities.