Anyone know how secure the investing is here?
It's secure until it isn't.
Doog has not been successfully hacked, keeps most of the BTC in cold storage, keeps excellent records, is usually very responsive (Unless you catch him while he's sleeping.), and has been altogether upstanding.
The only issue that has happened in the past, is a script kiddie was able to get into users accounts by using credentials from a compromised site.
Also, keep in mind that you will be supplying the bankroll for the site, so if there happens to be big losses, those will go to you, and if some investors get lucky with day-trading, your losses could be even more severe (There is a potential for compound losses.). In the long run you should recover, but there are no guarantees.
