Acuvity (now Proofpoint) vs HiddenLayer AISec Platform 2.0
Acuvity (now Proofpoint) vs HiddenLayer AISec Platform 2.0: side-by-side comparison of two memory governance, privacy & safety systems — architecture, taxonomy, license, pricing, MCP/A2A support, and direct edges.
Acuvity (now Proofpoint) · HiddenLayer AISec Platform 2.0
Where they differ (8)
Rows where both sides have data and the values disagree — the shortlist of dimensions that actually distinguish these two systems.
| Acuvity (now Proofpoint) | HiddenLayer AISec Platform 2.0 | |
|---|---|---|
| Type | MCP / Shadow-AI runtime enforcement | Model Genealogy + AIBOM (supply-chain layer) |
| Created | 2023 (founded by cybersecurity veterans; acquired by Proofpoint Feb 12 2026) | 2022-03 (founded March 2022; emerged from stealth July 2022 with $6M seed; Series A $50M Sep 2023) |
| Pricing | enterprise pricing via Proofpoint (not public); contact sales | enterprise pricing; contact sales; no public pricing |
| Funding | no public funding data found — pre-acquisition private company; acquired by Proofpoint for undisclosed amount | $56M total ($6M seed Ten Eleven Ventures Jul 2022; $50M Series A M12+Moore Strategic Sep 2023) |
| Deployment | on-prem or cloud (Proofpoint enterprise deployment); agentless approach | SaaS cloud or on-prem enterprise; agentless; no weights or training data access needed |
| MCP | Yes — Secure MCP servers (Model Context Protocol) is a core capability; protects MCP-based agent integrations | Yes — Agentic and MCP Security use-case (Use case 04); protects agents and MCP-based systems from prompt injection / unsafe tool use |
| A2A | no data — searched proofpoint.com/us/platform/ai-security, acuvity.ai/, acuvity.ai/integrations/, acuvity.ai/blog/; A2A protocol not advertised | no data — searched hiddenlayer.com, hiddenlayer.com/platform, docs.hiddenlayer.com; A2A protocol not advertised |
| OpenTelemetry | no data — searched acuvity.ai, proofpoint.com/us/platform/ai-security, docs.acuvity.ai; OpenTelemetry export not advertised | no data — searched hiddenlayer.com/platform, docs.hiddenlayer.com; OpenTelemetry export not advertised |
At a glance
| Acuvity (now Proofpoint) | HiddenLayer AISec Platform 2.0 | |
|---|---|---|
| Section | Memory governance, privacy & safety | Memory governance, privacy & safety |
| Tier | T1 | T1 |
| Type | MCP / Shadow-AI runtime enforcement | Model Genealogy + AIBOM (supply-chain layer) |
| Created | 2023 (founded by cybersecurity veterans; acquired by Proofpoint Feb 12 2026) | 2022-03 (founded March 2022; emerged from stealth July 2022 with $6M seed; Series A $50M Sep 2023) |
| Pricing | enterprise pricing via Proofpoint (not public); contact sales | enterprise pricing; contact sales; no public pricing |
| Funding | no public funding data found — pre-acquisition private company; acquired by Proofpoint for undisclosed amount | $56M total ($6M seed Ten Eleven Ventures Jul 2022; $50M Series A M12+Moore Strategic Sep 2023) |
| Backend storage | custom | custom |
| Deployment | on-prem or cloud (Proofpoint enterprise deployment); agentless approach | SaaS cloud or on-prem enterprise; agentless; no weights or training data access needed |
| API surface | REST (typical SaaS REST + first-party SDK pattern; see vendor docs for language coverage) | REST (typical SaaS REST + first-party SDK pattern; see vendor docs for language coverage) |
| Embedding | locked | locked |
| Multi-tenancy | hard-isolation | hard-isolation |
| MCP | Yes — Secure MCP servers (Model Context Protocol) is a core capability; protects MCP-based agent integrations | Yes — Agentic and MCP Security use-case (Use case 04); protects agents and MCP-based systems from prompt injection / unsafe tool use |
| A2A | no data — searched proofpoint.com/us/platform/ai-security, acuvity.ai/, acuvity.ai/integrations/, acuvity.ai/blog/; A2A protocol not advertised | no data — searched hiddenlayer.com, hiddenlayer.com/platform, docs.hiddenlayer.com; A2A protocol not advertised |
| OpenTelemetry | no data — searched acuvity.ai, proofpoint.com/us/platform/ai-security, docs.acuvity.ai; OpenTelemetry export not advertised | no data — searched hiddenlayer.com/platform, docs.hiddenlayer.com; OpenTelemetry export not advertised |
| Optimised for | governance + compliance + audit + adversarial hardening | governance + compliance + audit + adversarial hardening |
| Anti-fit | not for hobbyist / non-production use cases | not for hobbyist / non-production use cases |
Taxonomy
| Axis | Acuvity (now Proofpoint) | HiddenLayer AISec Platform 2.0 |
|---|---|---|
| storage | n/a | n/a |
| retrieval | agentic | n/a |
| persistence | session | long-term |
| update | read-only | read-only |
| unit | prompt | model |
| governance | auditable | auditable |
| conflict | n/a | n/a |
Pros & cons
Acuvity (now Proofpoint)
Pros: Enterprise DLP for AI products — protects against data exfiltration via memory writes/reads; backed by Proofpoint's enterprise channel.
Cons: Enterprise-tier pricing and complexity; smaller mind-share than Lakera or Microsoft Defender for AI.
HiddenLayer AISec Platform 2.0
Pros: Strong on adversarial ML threats (model evasion, training-data poisoning) extending into memory poisoning at runtime.
Cons: Broad ML-security positioning means memory specifically isn't the focus; pricing is enterprise-tier.