On-line virtual robot (bot) security agent

Various embodiments can provide a virtual online robot (bot) or security agent. The agent or guardian can monitor on line conversations and can act to intervene in an event a conversation's content meets certain definable criteria that indicates that the content might be inappropriate or possibly harmful or risky. In at least some embodiments, the agent or guardian is configured to utilize natural language processing techniques to evaluate the context of a conversation across its span and/or conversations across individual users. Using natural language processing techniques, the agent or guardian can then present notifications or warnings to individual users (or others) when a particular conversation or portion thereof is deemed problematic.