It is important to be very careful when downloading a wallet in a json file. It is best to only work with verified sources and look for the admin star in the profile of the person you are working with. In this case, if you are unsure of which Vladimir is the real one, it is best to avoid the situation altogether. It is also important to remember that our admins will never write you in a private message, so if you receive any messages from someone claiming to be an admin, it is likely a scam. Always be sure to double-check the source of the information and any messages you receive to ensure you are not getting scammed.
