--- title: "How Locke fits next to other approaches." description: "How Locke compares to cloud DLP, Microsoft Purview, CASB/SSE, AI gateways, self-hosted AI, staff training, and named AI-privacy tools. Honest, side-by-side comparisons." url: "https://sonomos.ai/compare/" source: "https://sonomos.ai/compare/" --- # How Locke fits next to other approaches. Locke is one layer of a privacy stack, not the whole stack. These 17 comparisons set it beside cloud DLP, Microsoft Purview, CASB/SSE, AI gateways, self-hosted AI, staff training and named AI-privacy tools, including where Locke falls short. - ## Locke vs Cloud-Based Data Loss Prevention Cloud DLP inspects traffic at a corporate gateway or through API hooks into sanctioned apps. It's mature for email, file shares and managed SaaS. AI chat is the awkward case: prompts rarely route thro… Read comparison - ## Locke vs Enterprise Privacy Platforms Enterprise privacy platforms (governance, consent and data-mapping suites) help you inventory personal data, manage subject-rights requests and prove compliance. They're essential at scale. They don't… Read comparison - ## Locke vs Enterprise AI Plans Enterprise AI plans bring real contractual upgrades: no training on your data, retention controls, SOC 2 reports, region pinning and admin controls. They meaningfully lower the risk of using a single… Read comparison - ## Locke vs Generic Browser Content Blockers Ad, tracker and site blockers work at the network layer: they stop connections or scripts from loading. They can't read the text inside a chat box, tell a privileged document from a harmless one, or m… Read comparison - ## Locke vs Staff Training and Policy Alone Most organisations start with a memo telling staff not to paste client data into AI tools, plus an annual training module. Training matters: it shapes culture and creates legal defensibility. It doesn… Read comparison - ## Locke vs Self-Hosted and On-Premise AI Running your own model (Ollama, LM Studio, a private API deployment, a VPC-hosted endpoint) removes one risk: the provider can no longer read your prompts. That's a real improvement. Sensitive data ca… Read comparison - ## Locke vs AI API Gateways and Proxies AI API gateways sit between your applications and the model provider, centralising rate limiting, cost tracking, audit logs, model routing and sometimes content filtering. That's useful for engineerin… Read comparison - ## Locke vs VPN and Zero Trust Network Access VPN and Zero Trust Network Access (ZTNA) secure the transport layer and enforce who can connect to what. A ZTNA policy can stop an employee from reaching an unapproved AI provider. It can't stop them… Read comparison - ## Locke vs Internal AI Portals and Private AI Deployments Many organisations build an internal AI portal: a private ChatGPT-like interface backed by Azure OpenAI, Bedrock or a similar managed endpoint. It comes with SSO, role-based access, audit logging and… Read comparison - ## Locke vs Prompt Engineering and System Prompts System prompts tell a model how to behave: 'don't repeat personal information', 'refuse to process medical records'. These are behavioral controls. They shape outputs, not what leaves your device. By… Read comparison - ## Locke vs Microsoft Purview Information Protection Microsoft Purview (formerly Azure Information Protection) is a mature DLP and labelling platform built deep into Microsoft 365. It is strong at classifying and protecting documents, email, Teams and S… Read comparison - ## Locke vs CASB and Secure Service Edge Platforms CASB and SSE platforms such as Netskope, Zscaler and Palo Alto Prisma SASE govern outbound traffic at the network layer. Every major vendor now ships AI-specific modules: detecting traffic to known AI… Read comparison - ## Locke vs Nightfall AI Nightfall AI is an established AI-native data security and DLP platform, known for high-accuracy detection across a wide set of integrated SaaS apps. It has extended into browser-based AI controls aim… Read comparison - ## Locke vs Private AI Private AI is a well-regarded PII detection and redaction company. Its developer-oriented API identifies, redacts and replaces personal data across many entity types, languages and file formats. It su… Read comparison - ## Locke vs Strac Strac is a data discovery, classification and DLP platform (with DSPM capabilities). It connects to a wide range of SaaS apps, cloud services, GenAI tools and endpoints, and can automatically detect a… Read comparison - ## Locke vs Cyberhaven Cyberhaven is an enterprise data security platform combining DLP, insider-risk management and DSPM. It is built around data lineage: tracing how data moves and transforms across endpoints, cloud, SaaS… Read comparison - ## Locke vs Prompt Security Prompt Security is a GenAI security platform covering the full range of LLM risks. It prevents sensitive-data leakage to AI tools, defends homegrown LLM apps against prompt injection and jailbreaks, a… Read comparison [See the full detection catalog](https://sonomos.ai/support/locke/data-types/), [review the security model](https://sonomos.ai/security/), or [look up a term](https://sonomos.ai/glossary/).