Lee Hsien Loong, Singapore's prime minister, speaks during a Bloomberg Television interview on day three of the World Economic Forum in Davos, Switzerland, Jan 23, 2020. (PHOTO / BLOOMBERG)

Singapore Prime Minister Lee Hsien Loong said he discovered that a blockchain platform used data from his Twitter profile without his permission or knowledge to sell its proprietary cryptocurrency.

“The site’s creators are anonymous, but I have sent an open tweet out to ask that my name and photo be removed from the site immediately, as I have nothing to do with the platform,” he wrote on Facebook.

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“I urge everyone to remain vigilant when dealing with cryptocurrency platforms,” Lee wrote. “If you deal with entities not regulated by the Monetary Authority of Singapore, remember: you won’t be protected by the laws administered by MAS.”