Put up your hands and start typing your PIN!
A New York man was robbed at gunpoint of $1,100 worth of bitcoin, police told CNBC.com on Friday.
The case is strongly similar to at least one other robbery in the Big Apple involving the digital currency earlier this year.
The latest combination street-cyber crime occurred at around 11:30 a.m. on May 27 in the Crown Heights section of Brooklyn.
The 28-year-old victim told police he went to a street corner there to meet a man who had answered his Craigslist.com ad offering bitcoins for sale, police said.
The purported buyer then led the victim to a car to complete the purchase, where another man sitting in the backseat pulled a gun and ordered the victim to electronically transfer the bitcoins to the thieves, cops said.
Read MoreBitcoin needs more consumer protection
After the victim sent the bitcoins, the thugs then took the victim's cellphone, and drove off, according to police. The victim then called 911.
"It's still under investigation," said the police spokeswoman. She said there was no surveillance video footage of the virtual money stickup available.
In February, the New York Observer reported quoted a bitcoin dealer named Dean Katz, who described how he had been robbed at gunpoint by a man in Queens who had arranged to meet him to buy bitcoin so the man could gamble on the Super Bowl. Katz said he was forced to transfer $8,500 worth of bitcoin and also was robbed of $3,500 in cash.
New York police on Friday gave additional details about that Jan. 22 robbery of Katz. They said he entered a car containing two other men at about 1:50 a.m. that morning to complete the sale.
"He was held at gunpoint and the suspects requested his Samsung phone and money," police said. Katz then got out of the car, and the suspects fled, cops said.
Read MoreBitcoin gets a rival—how will it fare?
No arrests have been made in Katz's case.
Katz also told the Observer he has heard from other bitcoin traders about additional strong-arm robberies of the digital currency as well as the use of counterfeit cash to buy bitcoin.
The Observer article said that a New York City firefighter had been stabbed during a robbery of bitcoins that he had agreed to sell. But police on Friday told CNBC that that robbery, which occurred on Feb. 9, "is not bitcoin related." The firefighter's credit card and PIN number were stolen, and he was stabbed in the arm, police said.
"Fast Money" regular Brian Kelly explains the flaw with bitcoin and what the fix is.
The price of the controversial crypto-currency is now being tracked by Bloomberg.
The block-chain protocol ensures that all bitcoin transactions are recorded on a public ledger. What if we built something similar for equity trading?