@mostofajaman
We know that cryptographic techniques and technology are used as blockchain security features which means that it maintains the privacy or confidentiality system and all your data is safe here without any problem. doesn't face means here there are some people who are hackers and want to damage your content but here they don't get success and they face failure in every way means it That you work here without any hesitation and all your data is safe, your transaction is safe and good luck for the competition.