Computer services for evaluating communications, including email and messages, and relational items to identify security threats and then monitor those security threats on an ongoing basis; Computer services for recording behaviors of Software-as-a-Service (SaaS) accounts for security purposes, namely, identifying and examining digital activities performed with SaaS accounts to identify security threats; Computer services for generating a federated collection of security threats posed to a company; Computer services for identifying and cataloging behaviors of SaaS accounts to discover patterns of unusual behavior; Computer services for generating a federated list of digital accounts for which behavior is unusual to prevent fraud; Computer services for creating, populating, and managing lists of SaaS accounts determined to be security threats due to involvement in past digital activities; Computer services for analyzing digital activities performed with SaaS accounts 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