I'm not even certain that Hedgehog has a token. As to the security I believe they just pull in info from accounts and wallets and give a single point from which to view all holdings. It is a new project and does not link to all systems yet, I have to go through a convoluted manual process to get my Nexo account linked. I'll have to check on the Hedgehog site but I don't recall seeing any functions for buy/sell or moving currency.