How does paxful store crypto?

Could you elaborate on the measures Paxful employs to securely store cryptocurrency? I'm particularly interested in understanding the technical infrastructure behind their storage solutions. Do they utilize multi-signature wallets? Are their servers and databases encrypted? What are the security protocols they follow to ensure the safety of client funds? Additionally, are there any regular audits or certifications that Paxful undergoes to validate their storage practices? Understanding these details would provide me with a better sense of the trustworthiness and security of Paxful's crypto storage methods.