US Patent 9342691 Internet protocol threat prevention

Blocking high-risk IP connections in real-time while allowing tailoring of an acceptable risk profile to match the security requirements of network resources. By acquiring IP threat information about IP addresses, including risk confidence levels, assigning weighting factor values corresponding to various characteristics of the IP addresses, and mathematically transforming the risk confidence levels using the weighting factor values, traffic from IP addresses posing unacceptable levels of risk is blocked. Further, mathematically transforming risk confidence level to a user-defined acceptable risk level permits allowing traffic from the IP addresses having an acceptable level of risk.