Hi, I have quite interesting case. Not to mention that lost access to my 66,000 ADA.
On January I have created paper wallet and transferred money to it. Attached wallet document (without of course my hand written words). paper-wallet-certificate_1_8_19.pdf (1.5 MB)
Anyway, it is empty.
I put my hand written words, double checked that everything is OK.
As you can see, on the wallet certificate there is address: DdzFFzCqrhsuqRRT6p9xh16EFoVTCxFtv49MKdDrQuD7o7opBNYKyvxPCcs24KUKQmTiZjLbiAgjJnR1S2TEEnBVSE6njxHt4mBLgJY8
In Cardano explorer you can see that there are 66,000 ADA
Today when I restored this wallet, I got it with different address and 0 balance.
This address: DdzFFzCqrhsk4Y8PMuAtfgME13sk9X4YZobq5UKNcNDaHrVKaVpDxrXESFnzmoj74t7PZ8YuKyUiFCayubJNbowgWqcTNFYFEwnCzTvu
Probability that someone hacked my account is quite low. If it would be hack, someone would need to change on the fly address generated for a paper wallet. Or I would need to have install wallet from untrusted source.
Have you ever heard about case like mine ?
When there was issue with withdrawing ADA from the wallet due to wrong transaction fee calculation I was one of not many affected. Maybe this is somehow related ?