Starbucks customer laptops hacked to mine cryptocurrency

Twitter user points out that a store in Buenos Aires had corrupted Wi-Fi and reports claim illegal script was using customer laptops to mine Monero coins

PUBLISHED : Wednesday, 13 December, 2017, 12:52pm
UPDATED : Wednesday, 13 December, 2017, 12:54pm

By David Reid

Coffee chain Starbucks says it has taken action to stop customer laptops being used to generate the cryptocurrency Monero.

On December 2, a Twitter user called Noah Dinkin posted a screenshot that showed that the public Wi-Fi available in a Starbucks store in Buenos Aires, Argentina, had been hacked and edited with unusual code.

Dinking claimed the code forced a delay when he first connected to the internet there, allowing the Wi-Fi provider to mine bitcoin using his computer’s processing power.

Since the tweet, both and have reported that the script was in fact Coinhive code, which was used to generate Monero coins.

According to, the culprit is likely not to be the Wi-Fi provider, but cybercriminals who have recently been identified as inserting the script into more than 5,000 websites.

In a response late Monday, Starbucks said the internet connection at the Buenos Aires store had now been made safe.

The coffee chain did not explain why the Wi-Fi script was able to have been changed in the first place.

Read the original article at CNBC