iSignthis’ John Karantzis hits Fairfax with defamation lawsuit over AFR article

Defamation 2020-09-14 5:45 pm By Christine Caulfield | Melbourne

John Karantzis, the CEO of fintech company iSignthis, has launched defamation proceedings against Fairfax, targeting an Australian Financial Review article over the 900 per cent share price jump in Etherstack, a wireless radio tech company in which Karantzis owns shares.