A security startup is preparing to emerge from stealth mode with a new technology that detects in real-time whether an online user or member of a social network is legitimate — and not a bot, automated tool, or criminal performing financial or other online fraud. Pramana, which will officially launch in July, has developed what it calls HumanPresent, a technology spun off from research at Georgia Tech that catches online fraud in action, real-time, using a dynamic method of identifying human behavior anomalies while at the same time preventing the fraudsters from detecting that they’re being watched.