Citadel Securities is locked in a legal battle with 2 ex-staff who left to start a crypto firm and say they're victims of 'corporate bullying'

• Alex Casimo and Leonard Lancia left Citadel Securities and set up Portofino Technologies.
• Citadel has taken legal action against them, claiming they plotted the launch before leaving.
• Portofino accused Citadel of "intimidation and interference" in a motion to dismiss a New York lawsuit.

Ken Griffin has made some scathing comments about cryptocurrencies in recent years.