Zak Muscovitch of DNattorney.com, has practiced domain name law for ten years from his office in Toronto, Canada. Zak was lead counsel in numerous precedent-setting court cases. Zak was defence counsel in the Toronto.com case (2000), wherein he successfully defended against the first attempt in Federal Court to obtain an interlocutory injunction against a domain name registrant. Zak was defence counsel in the Sweetsuccess.com case (2001), the first decision to establish the convenient forum for international domain name disputes involving a Canadian domain name registrar. Zak was instructing counsel for the registrant of the defendant domain name in the Technodome.com case (2002), which was the first in rem decision under the U.S. ACPA, in a dispute with the Reichmann family. Zak was counsel in the first Canadian court case overturning an ICANN UDRP commenced by Molson in the Canadian.biz case (2002). Zak was lead in the CheapTickets.ca case (2008), wherein he defended a descriptive domain name by successfully obtaining the cancelation of a plaintiff's trademark for "Cheap Tickets" in a proceeding which went all the way to the Federal Court of Appeal.

Zak has represented clients from all over the world, in countries such as China, England, Australia, the United States, Brazil, Turkey, Belgium, South Africa, Korea, and Canada, in numerous ICANN domain name disputes. Among many notable decisions, Zak represented the registrant of Shoes.Biz in the first ".biz" Reverse Domain Name Hijacking case (2002). Zak represented the registrant in the first ever successful defence of a CIRA Complaint over the domain name, Cheaptickets.ca (2003). Zak represented the registrant in the first CIRA Reverse Domain Name Hijacking finding and costs order in the Forsale.ca case (2009). Zak represented the respondent in the first case of Reverse Domain Name Hijacking in an IDN (Chinese language) domain name dispute over (LongRiver.com), a complaint brought by Hong Kong billionaire Le Ka Shing to the ADNDRC and then at WIPO. Most recently, Zak brought a suit to overturn the UDRP decision in the Ehotel.com case, and successfully defended Groovle.com in a case brought by Google.