Bitcoin gains as Google allows cryptocurrency advertising with limits

Bitcoin (BTC-USD) rises, flirting again with $40K, on the day that Google (GOOG -0.3%) starts allowing ads related to the world's largest cryptocurrency and other crypto on its network, Coindesk reports. Google has restrictions on the type of crypto ads it will allow. First, companies seeking to advertise crypto products and services to U.S. customers through Google must be registered with the U.S. Treasury's Financial Crime Enforcement Network or a federal or state chartered banking regulator. Certain types of ads or ad destinations that compile or compare crypto service providers won't be allowed. Ads for initial coin offerings and DeFi trading protocols are also prohibited. In other crypto news, the Bitcoin SV chain (BSV-USD) was the target of a "massive" 51% attack on Tuesday, Cointelegraph reports, citing Coin Metrics' Lucas Nuzzi. For more than three hours, attackers took over the chain, Nuzzi said. As a result, "all exchanges that received