This has happened twice today. Each time it came up with 'show us you are human' because 'something on your device says you're not' - eg scrolling too fast.
To rectify it, you have to slide the missing part of a jigsaw into the image. Did it and all was well. A few hours later it happened again .
I wondered at first if it was a scam and the site was a hacked. Or of someone was hacking my pc.
Has anyone else has this today?