A cura di @Temp.

A delivery man pulled up to a central Tehran home recently carrying a cardboard box with a warm cheese pizza—and $3,000 in U.S. bills.
The order for dollars had come in less than three hours earlier via Telegram, a widely used encrypted messaging app. The delivery man took payment in Iranian rials via bank card. The pizza was included in the deal.
“I’m not a drug dealer, but our government has led us into a guerrilla war,” said Nima, an underground currency dealer who coordinated the transaction. He asked that his full name not to be used for fear of arrest.
The black market for U.S. dollars has got a major boost in Iran, as the regime in Tehran faces increasing pressure from tightening U.S. sanctions and a faltering domestic economy.
A steep plunge in the value of Iran’s currency has led to a spike in demand for dollars in recent months from Iranians seeking safer assets. On Tuesday, one dollar bought 107,000 rials, compared with 43,000 rials in January

Ne parla un articolo del Wall Street Journal (link alternativo).