Leishen is the Associate Partner, Privacy and Technology Law at Deloitte.

Leishen is a Commercial and regulatory lawyer based in Gauteng, South Africa, acting for a wide range of local and foreign clients, in both the private and public sector. Admitted as an attorney in 2007 and a conveyancer in 2008. Masters in Commercial Law at the University of Witwatersrand, specialising in company/corporate law, cyber and telecommunications law.