Hi @Starbucks @StarbucksAr did you know that your in-store wifi provider in Buenos Aires forces a 10 second delay when you first connect to the wifi so it can mine bitcoin using a customer's laptop? Feels a little off-brand.. cc @GMFlickinger pic.twitter.com/VkVVdSfUtT

— Noah Dinkin (@imnoah) 2017年12月2日

As soon as we were alerted of the situation in this specific store last week, we took swift action to ensure our internet provider resolved the issue and made the changes needed in order to ensure our customers could use Wi-Fi in our store safely.

— Starbucks Coffee (@Starbucks) 2017年12月11日

Starbucks日前於網上發出聲明回應，指已經與網絡供應商確認解決問題，並執行必須的改變確保Wi-Fi安全。目前未知惡意程式存在幾耐，以及受影響人數。由於挖礦過程需要大量電腦運算資源，過往都曾經有不法分子試圖喺網站以同樣手法，盜取用戶運算能力挖礦，超過5,000個網站被植入惡意程式，但Wi-Fi熱點則較少見。網絡安全專家就提醒，連接到公眾網絡有機會被截取通訊，即使喺知名品牌使用公眾Wi-Fi時都要時刻提高警覺。

來源：BCC