"Under this new policy, the advertisement of Initial Coin Offerings (ICOs) and token sales will be prohibited globally," the company added.
Rumors initially circulated earlier last week that Twitter would ban such ads.
The company began removing accounts that intentionally solicit cryptocurrency exchanges, impersonating famous figures like Elon Musk, John McAfee, and Ethereum co-founder Vitalik Buterin, earlier in March.
"The policy will be fully enforceable among all advertisers within a month," Twitter confirmed to The Verge.
All ICOs and token sales will be banned, but cryptocurrency exchanges and wallets will be restricted to only public companies listed on major stock markets. (ANI)