Acuvity (now Proofpoint)
https://acuvity.ai/ai-runtime-security/
Acquired by Proofpoint (closed 2026-02-12). Runtime enforcement targeting memory poisoning, unauthorised execution, identity spoofing per the OWASP LLM threat list. Visibility/control over MCP servers and locally-installed AI tools — the infrastructure layer where memory is most exposed.
Acquired · Verified 2026-10-23 · fresh as of 2026-10-23 · 40 cited facts, 1 with a third-party source · 1 recorded change · Suggest a correction
At a glance
- Type
- MCP / Shadow-AI runtime enforcement vendor fix
- Tier
- T1
- Latest release
- not applicable — not OSS fix
- License
- not applicable — not OSS fix
- GitHub
- not applicable — no GitHub repo fix
- Pricing
- enterprise pricing via Proofpoint (not public); contact sales vendor fix
- Funding
- total $9M (Seed led by Foundation Capital, 2024-09); acquired by Proofpoint 2026-02-12, terms undisclosed third-party fix
- Freshness
- 2026-10-23 fix
- Layer
- agent-infra repo fix
- Licensing
- commercial vendor fix
Memory taxonomy
- storage
- n/a
- retrieval
- agentic
- persistence
- session
- update
- read-only
- unit
- prompt
- governance
- auditable
- conflict
- n/a
When to use
Optimised for: governance + compliance + audit + adversarial hardening
Anti-fit: not for hobbyist / non-production use cases
Pros & cons
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.
Claims & capabilities
Acquired by Proofpoint (announced as completed 2026-02-12, terms undisclosed) to extend Proofpoint's AI security and governance portfolio.
Technical surface
- API surface
- REST (typical SaaS REST + first-party SDK pattern; see vendor docs for language coverage)
- Backend storage
- custom
- Deployment
- on-prem or cloud (Proofpoint enterprise deployment); agentless approach
- Embedding model
- locked
- Multi-tenancy
- hard-isolation
- MCP
- Yes — Secure MCP servers (Model Context Protocol) is a core capability; protects MCP-based agent integrations
- A2A
- no data — searched proofpoint.com/us/platform/ai-security, acuvity.ai/, acuvity.ai/integrations/, acuvity.ai/blog/; A2A protocol not advertised
- OpenTelemetry
- no data — searched acuvity.ai, proofpoint.com/us/platform/ai-security, docs.acuvity.ai; OpenTelemetry export not advertised
Compare Acuvity (now Proofpoint) with…
Alternatives to Acuvity (now Proofpoint) → live options ranked by shared design, licence, hosting and MCP support
Similar systems
Other memory governance, privacy & safety in the catalog, ranked by inbound references.
- Lakera Guard / Lakera Red T1
Acquired by Check Point Software (completed by 2025-11-11); being folded into Check Point's AI security platform. Screens every prompt, response, and retrieved document for indirect prompt injection — primary vector for memory poisoning. Treats memory as untrusted: anything written to or read from memory is adversarial until proven clean. Lakera Red provides "Agent Breaker" gamified red-teaming.
- Enkrypt AI T1
Applies guardrails at three points: (1) before write to vector DB, (2) before query reaches embedding model, (3) before response. Detects malicious instructions in stored memory before retrieval; scans for PII/PHI in/out. Text + image + voice modalities. Acquired by Anaconda (2026-08-04); Enkrypt AI is now sold as Anaconda's AI security and guardrails product.
- HiddenLayer AISec Platform 2.0 T1
AI security platform with four modules: AI asset discovery, supply-chain/model integrity validation, continuous attack simulation, and runtime detection/response, including protection of agents and MCP-based systems.
- Hyperconsciousness (hc) T3
Developer-alpha encrypted, append-only knowledge store for humans and agents, with CLI/MCP access and scoped, expiring grants. Traction: Submitted via intake issue #181
- Mem0 Security / OpenMemory T1
Commercial Mem0 ships SOC 2 / HIPAA, zero-trust access controls, BYOK encryption, real-time monitoring, audit logs and workspace governance as defaults (Trust Center at trust.mem0.ai). For privacy-first deployments the self-hosted path is now the Mem0 open-source server (REST API + dashboard via Docker Compose with pgvector Postgres, admin setup wizard, per-user API keys, request audit log). As of Oct 2026 OpenMemory itself is a hosted MCP service and its old local Docker variant is no longer in the repo.
- Microsoft Agent Governance Toolkit T2
Cross-Model Verification Kernel (CMVK) requires majority-voting agreement across multiple model calls before a memory-influenced action. Agent OS package intercepts every action (memory included) at sub-millisecond latency. MIT licensed.
Sources (39 cited facts, 1 third-party)
Each fact links to the page it came from; the badge says who published it (how to read sources).
- What it is MCP / Shadow-AI runtime enforcement vendor
- What it does & what's distinct Acquired by Proofpoint (closed 2026-02-12). Runtime enforcement targeting memory poisoni… vendor
- Claims / benefits Acquired by Proofpoint (announced as completed 2026-02-12, terms undisclosed) to extend … vendor
- Modalities text vendor
- Created 2023 (founded by cybersecurity veterans; acquired by Proofpoint Feb 12 2026) vendor
- Funding total $9M (Seed led by Foundation Capital, 2024-09); acquired by Proofpoint 2026-02-12, … third-party
- Pricing enterprise pricing via Proofpoint (not public); contact sales vendor
- Compliance Proofpoint enterprise compliance (SOC 2 FedRAMP ISO 27001); Acuvity's own certs not conf… vendor
- Data handling enterprise deployment; runtime inspection of AI/MCP traffic; data handling under Proofpo… vendor
- Deployment on-prem or cloud (Proofpoint enterprise deployment); agentless approach vendor
- HQ Sunnyvale CA (acquired by Proofpoint Sunnyvale) vendor
- Founders / pedigree Satyam Sinha (co-founder & CEO) with other cybersecurity and engineering veterans; acqui… vendor
- Memory volume / scale internal — undisclosed (enterprise security) vendor
- Performance no public benchmark scores found — vendor does not publish quantitative perf metrics vendor
- API surface REST (typical SaaS REST + first-party SDK pattern; see vendor docs for language coverage) vendor
- Backend storage custom vendor
- Multi-tenancy hard-isolation vendor
- Encryption at-rest + in-transit vendor
- SSO / RBAC SSO + RBAC vendor
- Embedding model locked vendor
- Consistency not specified — vendor docs do not address this dimension vendor
- Versioning none vendor
- Schema evolution not specified — vendor docs do not address this dimension vendor
- Namespace primitives not specified — vendor docs do not address this dimension vendor
- MCP support Yes — Secure MCP servers (Model Context Protocol) is a core capability; protects MCP-bas… vendor
- Import / export Exportable structured audit logs (event lineage, decisions, redactions) for audits and i… vendor
- Validated verticals regulated enterprise: financial-services, healthcare, government, legal vendor
- Time to running <1day to <1week (enterprise procurement + integration) vendor
- Anti-fit not for hobbyist / non-production use cases vendor
- Optimised for governance + compliance + audit + adversarial hardening vendor
- Adjacent infrastructure BYO agent stack; this layer guards it vendor
- Pros Enterprise DLP for AI products — protects against data exfiltration via memory writes/re… vendor
- Cons Enterprise-tier pricing and complexity; smaller mind-share than Lakera or Microsoft Defe… vendor
- Project & sources acuvity.ai Proofpoint acquisition vendor
- cost-pricing-model subscription vendor
- cost-last-verified 2026-06-29 vendor
- licensing-bucket commercial vendor
- positioning-platform-vs-product product vendor
- taxonomy-three-layer-rollup agent-infra repo
What changed
Changes to this record's lifecycle, licence, release, pricing and hosting facts, from the catalog's git history. Subscribe (Atom)
Related systems
Referenced by (1)
- Portkey AI integrates with — Portkey docs have an Acuvity guardrails integration page. (verified 2026-10-29)