Computer services for evaluating email and relational items to identify fraudulent individuals and then monitoring conduct of those fraudulent individuals on an ongoing basis, namely, providing a computer program featuring technology for evaluating email and relational items to identify security threats; Computer services for recording behaviors of individuals deemed to be fraudulent in a blacklist for security purposes, namely, identifying and examining digital communications to identify security threats; Computer services for tracking digital activities of individuals determined to be fraudulent based on an analysis of emails sent by those individuals, namely, monitoring digital communications involving individuals determined to be fraudulent to identify security threats; Computer services for generating a federated collection of individual behaviors to prevent security threats, namely, identifying and cataloging individual behaviors through analysis of digital communications; Computer services for generating a federated blacklist of individuals and associated behaviors to prevent fraud, namely, establishing a federated blocklist by analyzing digital communications; Computer services for creating, populating, and managing blacklists of individuals determined to be security threats due to involvement in past digital activities, namely, maintaining blacklists of individuals for the purpose of identifying security threats; Computer services for analyzing digital activities to discover security threats, namely, examining the content and context of digital activities to identify security threats; Computer services for analyzing digital communications occurring across email and messaging platforms to discover security threats, namely, examining the content and context of digital communications to identify security threats; Computer security services, namely, online scanning, detecting, quarantining, and eliminating of viruses, worms, trojans, spyware, adware, malware, social engineering based instructions and exploits, and unauthorized data and programs from digital communications including emails and messages; Computer security services, namely, monitoring, detecting, and remediating instances of account takeover; Software as a service (SaaS) featuring software for the analysis and protection of digital activities, communications, and accounts; Platform as a service (PaaS) featuring software-implemented platforms for the analysis and protection of digital activities, communications, and accounts; Email and messaging management services for others, namely, threat protection in the nature of monitoring computing systems to detect unauthorized access, data breach, and data exfiltration and storing digital communications recorded in electronic media; Software as a service (SaaS) featuring software for the analysis and protection of the security of network communications, cybersecurity, email management virus protection, email archiving, email continuity, and email security; computer security consultancy