bitcoin is indeed very difficult to hack has a very strong private key so it is very rare for hacking by irresponsible people if indeed one of the banks in Germany announces the adoption of bitcoin will certainly be a very good thing for the survival of bitcoin in the future considering that bitcoin is currently in dire need of adoption from several companies and various groups if this is really realized what one German bank said where they announced they would adopt bitcoin, and we as miners really hope that this process can be realized soon