Avast - cheap license - is it legal? Is my security at risk?

[pablOOOOO]

Hello everyone  ,

Last week I bought cheap Avast Premium license on one of the auction sites. I activated it, but i found out that license is used on 86 of 10 devices    .
Is it legal? What should i do right now?
Is my security at risk?

Currently I reinstalled the antivirus and I am using 30 day trial version and I am doing that cool task to get 6 month license .

[Asyn]

-> https://support.avast.com/en-ww/article/26/

[pablOOOOO]

-> https://support.avast.com/en-ww/article/26/

Well, i bought it on popular auction site, I am sure it is safe, but key belongs to someone's account and it is activated on 86 devices.

[CraigB]

I'm wondering why Avast hasn't already banned the license

Live and learn, you've been scammed