#mundocrypto source BBC News

The president of the United States launched his own cryptocurrency called $Trump in January, which has recorded a decline of more than two-thirds of its initial value in just a few weeks.

And in mid-February, the Argentine president, Javier Milei, faced a critical moment after promoting the cryptocurrency $Libra on the social network X. His support for the digital currency led many people to invest in the coin, which ended up collapsing after the developers withdrew more than US$80 million just an hour after creating it.

"I have nothing to hide or conceal," the president said in an interview. "I acted in good faith," he added.

"If you go to the casino and lose money, what is the complaint, if you knew it had those characteristics?" he said in an interview with the local channel TN, partly reflecting the risky nature of these investments.

At BBC Mundo, we spoke with Nicholas Weaver, a researcher at the International Computer Science Institute (ICSI) in California, a non-profit research center affiliated with the University of California, Berkeley.

An expert in crime and cybersecurity, Weaver openly opposes digital currencies, and we asked him about those risks at BBC Mundo.