Jericho Security defends enterprises against attacks that use generative AI, principally social engineering. The economics of phishing changed when language models made it cheap to write fluent, personalised, context-aware messages at volume, and cheap to clone a voice convincingly enough for a phone call. The old signals security teams relied on, awkward phrasing, generic greetings, obvious formatting errors, no longer separate a real message from a fabricated one, and the annual training video was already weak defence before that shift.

Jericho’s approach is to fight on the same terms, using AI to generate realistic, personalised simulated attacks so an organisation can measure who is actually susceptible and train against current techniques rather than last decade’s examples. Backed since 2023 and funded through a 15 million dollar Series A, the company occupies a category created by the same technology wave the rest of this portfolio is built on. Offence got cheaper, and defence has to be repriced accordingly. Budget for security awareness already exists in most enterprises, so the sale is a displacement rather than a new line item.