Retaliation risk from disgruntled former employees, dissatisfied clients, defeated counterparties or harmed family members is the most under-modelled category of executive-protection exposure, because the perpetrator typically lacks the visibility of organised threats but has all the motive and most of the access. This report sets out the retaliation-risk framework in your chosen jurisdiction and industry: the documented retaliation patterns (post-termination violence, client-conflict escalation, litigation-counterparty harassment), the early-warning indicators that experienced protective-intelligence teams use, the legal framework around restraining orders and protective injunctions, the operational mitigations (terminations conducted with security oversight, client-conflict de-escalation protocols, residence and family hardening), and the trigger points at which to engage an executive-protection firm or specialist counsel.
Reference material for informed readers, not advice.