How many people work at LetsDefend?

About 165, down 1% over the last 30 days.

Who are LetsDefend's competitors?

Hook Security, CybeReady, and Infosec Institute are among the closest in Human Risk. The full competitive set, with overlap scoring, is in the platform.

LetsDefend

Human RiskSterling, United Statesfounded 2021acquired by Hack The Box

LetsDefend is a cybersecurity company specializing in Human Risk, founded in 2021 and headquartered in Sterling, United States. It employs about 165 people and was acquired by Hack The Box in 2025.

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updated Aug 22, 2026

The record

What LetsDefend did, dated.

Sep 2025AcquiredHack The Box acquires LetsDefend to expand blue team training ecosystem

selected events only — the full dated record (1 event since Sep 2025) lives in the platform

Products

What LetsDefend sells.

In the platform

The other 440 data points.

Funding historyevery round, every lead investor
Headcount growthvelocity, departments, seniority
Open jobslive postings, hiring pace, role mix
Tech stackframeworks, clouds, security

Similar in Human Risk

FAQ

Common questions about LetsDefend.

How many people work at LetsDefend?: About 165, down 1% over the last 30 days.
Who are LetsDefend's competitors?: Hook Security, CybeReady, and Infosec Institute are among the closest in Human Risk. The full competitive set, with overlap scoring, is in the platform.