Could you please elaborate on the safety of funds in Nexo? I'm considering investing, but I'm concerned about the security measures employed. How does Nexo ensure the protection of its users' assets? What kind of insurance or safeguards does it provide in case of any untoward incidents? Additionally, how transparent is Nexo in terms of disclosing any risks or vulnerabilities that might affect the safety of funds? I would appreciate a detailed response addressing these concerns.