Maybe, but I have been buying on eBay for about 15 years. If one buys from a 100% seller, and also a boxed product is good, then I have had no problem. I have been using Kaspersky without problems.
I do appreciate the advice, but my experience is that I get licenses for 1/3 or less on eBay.
Avast Free is good protection, and I appreciate Avast providing it.
Regards, Jerry