An anonymous reader writes: Bitcoin exchange portal Bitstamp is warning users of a Google Chrome extension that steals their Bitcoin when making a transfer. According to Bitstamp, this extension contains malicious code that is redirecting payments to its own Bitcoin address. Bitcoin web app developer Devon Weller confirmed Bitstamp's findings, saying that the extension was secretly replacing Bitcoin QR codes with its own. The extension's name is BitcoinWisdom Ads Remover and is still available on the Google Chrome Web Store. In July 2015, many users reported having similar issues with the same extension.