Onyx Security vs Silverfort

About Silverfort

Silverfort sells an identity security platform that enforces identity security inline and at the moment of authentication across workforce users, privileged users, third parties, non-human identities and AI agents. Silverfort's platform uses Runtime Access Protection (RAP) technology to integrate with a customer's IAM infrastructure, delivering end-to-end visibility and inline protection to identities. In the RAP flow, the IAM infrastructure forwards a request to Silverfort using RAP technology. Silverfort analyzes risk and triggers inline security controls if needed.^{[1][2][3][6][13]}

Silverfort states that identity has always been the easiest way for attackers to reach what matters most. When an identity requests access, whether human, machine or AI, Silverfort analyzes the full context of the request and acts instantly to allow, challenge or block. Silverfort integrates into IAM infrastructure including Active Directory, cloud IdPs, SaaS, legacy systems and OT without system modifications. Silverfort discovers and maps users, service accounts, non-human identities and AI agents without proxies or manual configuration. Silverfort blocks, challenges or restricts access in real time when it identifies a risk, with no human in the loop required. Silverfort applies security controls across on-prem, OT, hybrid, cloud and multi-cloud infrastructure. Silverfort extends protection to resources from legacy systems and command-line tools to modern cloud workloads and SaaS apps.^{[3][5][7][13]}

Silverfort extends MFA protection to any resource, including legacy apps and command-line tools. Silverfort extends MFA to every AD-managed authentication in Kerberos, NTLM and LDAP flows. Silverfort can act as an organization's single MFA solution or extend the MFA solution an organization already uses. Silverfort enforces identity-based segmentation by limiting each identity to only the systems it should access.^[6][7][8]

Silverfort discovers all NHIs and protects service accounts with purpose-based access policies and fencing. Silverfort builds a behavioral baseline for each service account, learning its usual access paths, privileges and frequency of activity. Silverfort discovers, monitors and controls AI agent activity with real-time access policies. Silverfort maps each AI agent to its provisioning identity and human owner through visual storyline graphs showing roles, accessed resources and permission chains. Silverfort's native integrations with Google Cloud Agent Gateway and Microsoft Copilot Studio and its MCP Gateway monitor every agent call in real time, evaluating authorization scopes before execution. Silverfort enforces privileged access controls dynamically, with no vault required.^{[5][6][9][10]}

Silverfort applies a scoring model based on probability and business impact. Silverfort monitors every authentication and access attempt of every human and machine in a hybrid environment. When Silverfort detects malicious identity activity, it can block or interrupt the flow by denial, MFA challenge or session termination, enforce virtual fences, or quarantine access. Silverfort enriches alerts with identity risk context and forensic detail and pushes them to SIEM, XDR, SOAR or security operations tools.^[11][12]

Silverfort's platform operates with no proxies, no app changes, and no user friction or workflow modifications. Silverfort bases its pricing on the size of an organization and offers four packages. Silverfort packages are available for on-prem, cloud and hybrid environments, and included modules may vary by environment type. Silverfort lets buyers customize a package from individual platform capabilities. Silverfort provides Identity Security Services for threat hunting and incident response, and Silverfort Resident Expert for staff augmentation.^[3][6]

Silverfort discovers users and service accounts and enforces identity access controls on critical resources, from command-line access to file shares, legacy apps and IT infrastructure. Silverfort secures the convergence interfaces of OT networks with the IT network at layer 3.5 and secures engineers and service account access in the production zone. Silverfort addresses ransomware attacks and lateral movement by detecting and blocking malicious authentications at runtime.^[13]

Silverfort was founded in 2016. Silverfort states that identity security is its sole focus and mission. Hed is the CEO of Silverfort and one of its co-founders. Yaron is a co-founder and the Chief Technology Officer at Silverfort. Silverfort extends identity controls already protecting over 1,000 organizations to AI agents, on one policy engine with one audit trail.^{[1][7][8][9][10][11][12][13][14]}