Why do I have to complete a CAPTCHA? Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. What can I do to prevent this in the future? If you are on a personal connection, bitcoin mining service at home, you can run an anti-virus scan on your device to make sure it is not infected with malware.
If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. Another way to prevent getting this page in the future is to use Privacy Pass. Fidelity has been at this for three years, using its own computers to harvest the digital currencies bitcoin and Ethereum. Fidelity CEO Abby Johnson surprised a tech conference this spring by revealing the brokerage giant didn’t just study cryptocurrency.