Wiehann is a Partner and Head of FinTech, Digital Assets, and Private Equity at Forvis Mazars South Africa, specializing in consulting and assurance services across FinTech, blockchain, and private equity sectors globally. A Chartered Accountant (SA) with a Master’s in Blockchain and Digital Currencies and a PhD candidate, he has completed executive programs at MIT and Oxford University. Wiehann has been featured in international publications and webinars, leveraging his expertise to serve clients in digital asset exchanges, payment platforms, and investment funds in regions including the US, Europe, and Asia. He is a member of SAICA, IRBA, and a JSE-registered auditor.