Thanks for accepting me in your communityTo the point: (1) In December 2017, I made a wallet and started to load the transaction block. The space on hdd was inadequate. (2) the authentication request was an IP in Poland. It was not the real one. (3) In February 2018, we changed hdd, interfered with another router and made a new wallet using the same email address. Now I have IP in Romania. Correct. (4) When I access wallet 1 or wallet 2, I receive the same information. So a block reading of the block balance. (5) the Exchange value is variable, as if it were diminished by some operations. Question: Can my first wallet work on my balance without seeing only the consequences and not the transactions made on it? Of course I have to document more, but it can be a sufficiently unprotected drainage path. Any beginner error may indicate the vulnerabilities of the system. Thank you.
I am not sure what your problems are, you should ask in the subforum of your language because I feel like something got lost in translation.
However, I'll try to give some answers.
* If you use Bitcoin wallet (Bitcoin QT, Bitcoin core, official wallet) then it doesn't matter where you are when you connect to the internet. But it also doesn't need authentication/log in, so you are very confusing. (If you have a password, it's for encrypting your data in the local wallet, not for a login).
* The transactions and balance are correct only after the wallet is fully synced, else you may have the impression you have funds, but they were spent long ago.
However, no matter what tests you do MAKE A COPY OF (the correct) WALLET.DAT before doing anything.
Please refine your questions and give us a better view of your issue. Using a proper thread for this would also be nice instead of hijacking others' thread.