Somebody sent me a screenshot of my desktop and is trying to blackmail me and I M not sure if I'm safe cuz the passwords he sent me were more than a month old

Thanks a lot

I added Microsoft authenticator

Should I do a backup when I return home and factory reset my pc? And how should I do the backup?

Plus I recently checked my card and somebody paid with it Google play pass and Netflix how do I stop that

Okay, then from what I read about the Huawei phones you must have a newer model with the more recent version of the HarmonyOS that's based on Android, though they of course won't admit it.

Though as I mentioned, at the time your passwords were acquired roughly a month ago there was likely some sort of info stealer malware present on your machine (or possibly a keylogger) for at least long enough to capture these passwords, if you were warned by your installed antivirus and removed it then, it's likely gone.

If you don't recall this and had downloaded anything like a game crack, cheat or any other questionable software, it's quite likely it came along with this and may still be present within it, which if antivirus had warned about and you ignored is obviously detrimental to your security.

If none of this rings a bell, I'd still try something like the popular Malwarebytes Anti-Malware Trail/Free version, since even when used for on demand scanning only, it's more effective at finding these sorts of fringe malware than either Defender or most other 3rd-party antivirus apps.

I'd only spend the time to backup and/or reset the PC if you can't otherwise confirm this malware from a month ago had already been identified and removed and the Malwarebytes is unable to find it as well. Ask how to do this in a separate thread when you return to be guided by others, since I haven't ever needed to do this myself with my high security posture and Windows S Mode system, so I have absolutely no experience using any of these archaic tools from the legacy Windows everyone else including gamers still uses.

No one here could even help if the credit card was used from a Microsoft account, since these are just community forums manned mostly by volunteers. If purchases weren't directly from your Microsoft account where they'd have been logged and still able to be viewed in either Orders or Subscriptions, even Microsoft Support can't help, so as always, the best method is to immediately contact your bank and inform them of the fraudulent use.

However, based on the details for Google Play pass and Netflix, there may be something similar displayed in your Google account, though I'm guessing at least the Netflix was purchased directly with your card details and thus the Google Play pass might have been as well. So, if there's nothing in your Google account either, I'd just tell your bank this and have them reissue the card, though you may not want to do this until you get home if you have no other payment option available and are still located in another country with no cash to get home without it.

Rob

I added Microsoft authenticator

Should I do a backup when I return home and factory reset my pc? And how should I do the backup?

Plus I recently checked my card and somebody paid with it Google play pass and Netflix how do I stop that