Something happened to me that makes me to be scared or extremely care of any internet files. I once had Bitcoin wallet from blockchain direct though the money wasn't that big about N300k, I was on a taxi when I lost my phone device and after all efforts to recover it proven aborted so I lost it. Now after a while I got another phone but the problem now is how to recover my wallet because the email and phone number that's was used to register on the blockchain was totally not mine, both the email and phone number was registered by my ex who we no longer have access to each other, I don't even know where this person lives anymore in this world, no contact no information about her.
Is a difficult situation because even if you might still have the password to the email since you have change phone they will definitely send you a verification message on the recovery email or number to certified that she knows who is login in the email but on this case nobody to do it and even the number they usually do welcome back or recovery but without the person that registered the sim card is also not going to work so is really difficult and who knows if destiny is going to make you both cross part in the future that you will use from there and recover the account. However you are definitely going to blame yourself if you loss this money because any investment you are doing should have only your information and not another persons details so why didn't you use your email and phone number from the beginning instead of third party?.