A tunable monitoring system for detecting computer threats to third-parties is provided. The system may include a receiver operable to receive entity characteristics relating to a first entity and identification data identifying a third-party. The system may include a publicly-available data crawler operable to mine and retrieve publicly-available data. The data may relate to both the third-party and one or more of a plurality of entities. The plurality of entities may include entities that share a predetermined threshold number of entity characteristics with the first entity. The system may include a sentiment analysis module operable to score the retrieved data using a sentiment analysis scoring model. A potential relationship between the first entity and third-party may be dissolved when the score is above a predetermined negativity threshold. The potential relationship between the first entity and the third-party may be initiated when the score is below the predetermined negativity threshold.