32 hackers and traders charged with $100m in “insider trading” using stolen press releases by Paul Ducklin.
Whatever law enforcement may say, I think it was the advertising by this group of hackers/traders to attract more members that was their downfall.
With no advertising, reasonable profits, no unbroken string of successes, they could have been hidden in the data for decades, if not longer.
The crime really should be called “outsider trading” because it is only crime when people other than the usual major market players make money in the market.