Although not linux users this week I have had 3 windows users in my workshop who fell foul to this. One was on windows 8 and paid 800 euros for technical support for the year before realising it was a scam. They installed anydesk, took control of his machine and attacked his banking log in. The bank stopped it and informed him hence his visit to me. Took a few hours to sort. He will not change to linux prefers windows 8, but he is 80 plus and very old set in his ways.
The other 2 are now on lmde !
They would not say how much they lost through the calls made, just that it was reported to bank and police.