Twitter is to ban cryptocurrency advertising, joining Facebook and Google in a clampdown on the industry over the risk of giving publicity to potential fraud or large investor losses.

The policy, whose implementation date was not announced, will also stop crypto-exchanges from advertising, with limited exceptions.

Twitter said this month it was taking measures to prevent crypto-related accounts from “engaging with others in a deceptive manner”, but had faced calls to go further after bans from Facebook and Google.

Facebook restricted crypto-related adverts in February, while Google announced a ban that comes into force in June earlier in March.

Regulators have stepped up warnings that bitcoin and other virtual currencies are highly speculative, some potentially fraudulent and that investors should be prepared to lose everything.

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