Why “Assumed Breach” Matters
Adopting the mindset that users will get breached, and networks must be able to withstand it, is critical. Assumed breach means that River Security assumes the role of a breached user, and helps point out the weaknesses and flaws of the organization in that situation.

Users may unintentionally get breached, but sometimes breach is done by a trusted insider intentionally. Organizations should be able to withstand these risks.
Why Customers Benefit from Assumed Breach
Traditional testing spends most of its effort proving whether an attacker can get in. But in practice, initial access is rarely the hard part, a single phished credential, an unpatched service, or a careless third party is often enough. The damaging question is what happens next: how far can an intruder move once they already have a foothold?
Assumed breach answers that question directly. We start from the position of a compromised user or insider and test how well your organization contains, detects, and responds to the intrusion from there. This gives you a realistic picture of your true internal resilience, not just the strength of your outer wall.
A realistic view of real-world risk
Attackers assume they will eventually get in, and so should you. By emulating a breach that has already happened, you see the risks that actually lead to material damage: lateral movement, privilege escalation, and access to sensitive data.
Focus budget where it matters
Skipping the perimeter phase means our testers spend their time where the real impact lives, inside your network. You get more depth, more attack paths, and more actionable findings for the same investment.
Validate detection and response
Prevention will eventually fail; detection is what limits the blast radius. Assumed breach shows whether your SOC, EDR, and monitoring actually catch an intruder moving through the environment, or whether they slip by unnoticed.
Test defense in depth
We pin-point the gaps between your layers, weak segmentation, over-privileged accounts, and blind spots in logging, so defenses hold even after the first control is bypassed.
Cover the insider threat
Not every breach comes from the outside. Assumed breach accounts for the malicious or compromised insider, a blind spot that perimeter-focused testing rarely addresses.
Clear, prioritized next steps
You leave with proof-of-concept impact, a prioritized list of the most critical risks, and both short- and long-term remediation guidance, so you know exactly what to fix first.

In Practice, What to Expect from our Delivery
Expect a fast paced and hard hitting delivery from our team of penetration testers. On the inside, they will look for gaps through network and application controls, ensuring our customers get a report detailing short and long term best practices, but also highlighting notable defensive measures in play.
After a period of testing, our team will present our customer with a list of the most critical alerts, including proof-of-concept of impact, remediation suggestions and a plan moving forward.
Our Customers Say It The Best
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