[Someone eles using my key]

Is it possible that some software is using the key? Or it was stolen then you need to verify your purchase in support and they will re-issue the key

[gaps in history]

Did you manually saved the data to history or the system did the save automatically?

[Two Factor Authentication: Are you using it?]

I use two-factor verification for services like Gmail, social media accounts.

But if some random website requests it in the process of verification, I skip it. Don't know whether I'm right or wrong, but I'm too lazy to bother. But if to think more deeply, I'm giving them my data, so it's better to take better action in securing the info.

[Introduce yourself]

Hi everyone. It's nice to become a part of this community. Hope to find and share lots of useful information here.

Cheers!