HEAD-TO-HEAD · FACTS ONLY
Workforce Protector vs Prompt Security: AI endpoint control facts side by side
Short answer
Workforce Protector describes 1 of the four product control types on the pages we read and Prompt Security describes 2; they differ on on-device control. On decisions, Workforce Protector describes some control over tool calls and Prompt Security does not describe tool-call decisions on the pages we read. We do not score either; the right choice depends on the AI tools people use, your devices, your current stack and whether you block or guide.
By The Device Desk · Endpoint AI Finder · Published 2026-10-11
Desk research from public vendor pages read on 27 September and 11 October 2026. Profiles follow our published method; we did not run the products.
Vendor pages read September and October 2026 · updated 2026-10-13
Where do their controls sit?
- Filled or hatched marker: Workforce Protector
- Dashed teal ring: Prompt Security, described
- DEV Filled marker: described on the product pages we read
- DEV Hatched marker: partly described (another component, a narrower scope, or method not detailed)
- DEV Dashed marker: not in our sources (it may exist; we did not find it)
What are the facts, side by side?
| Fact | Workforce Protector | Prompt Security |
|---|---|---|
| Owner | Akamai (formerly LayerX; acquisition date not stated on the page) | SentinelOne (acquisition announced 5 August 2025; SentinelOne's blog of 3 September 2025 is titled SentinelOne Acquires Prompt Security) |
| Positioning | Akamai Workforce Protector, formerly LayerX, is a browser extension for Chrome, Edge, Firefox and Safari that controls prompts, responses, agent actions and data exchanges across AI, SaaS, web and desktop applications, including agentic browsers and AI assistants, without proxies or a browser replacement. | Prompt Security, now part of SentinelOne, inventories AI tools and code assistants, including unsanctioned shadow AI, through two local sensors, a browser extension and a dedicated AI endpoint agent, and is built into the SentinelOne Singularity Platform. |
| How it reaches devices | A browser extension for Chrome, Edge, Firefox and Safari; Akamai says it needs no proxies and no browser replacement. Source: Akamai Workforce Protector (formerly LayerX) · Read 11 Oct 2026 | Two local sensors: a browser extension and a dedicated AI endpoint agent, managed from the SentinelOne Singularity Platform. Prompt Security argues that MDM or EDR integrations, which mostly run scripts periodically, are not enough. Source: Prompt Security blog: browser and endpoint sensors · Read 11 Oct 2026 |
| On-device controlDiffers | Partly describedThe page says its controls reach desktop applications; how that works on the device is not described on the page we read. Source: Akamai Workforce Protector (formerly LayerX) · Read 11 Oct 2026 | DescribedA dedicated AI endpoint agent detects new AI agents, skills and connectors and applies runtime policies; it names GitHub Copilot, Cursor and Claude Code among the code assistants it inventories. Source: Prompt Security blog: browser and endpoint sensors · Read 11 Oct 2026 |
| Browser extension | DescribedA browser extension for Chrome, Edge, Firefox and Safari that controls prompts, responses, agent actions and data exchanges. Source: Akamai Workforce Protector (formerly LayerX) · Read 11 Oct 2026 | DescribedA browser extension inspects prompts, redacts sensitive data and discovers shadow AI. Source: Prompt Security blog: browser and endpoint sensors · Read 11 Oct 2026 |
| Network or SSE proxy | Not in our sourcesNot described on the pages we read. | Not in our sourcesNot described on the pages we read. |
| AI or MCP gateway | Not in our sourcesNot described on the pages we read. | Not in our sourcesNot described on the pages we read. |
| Names the coding agents it coversDiffers | Not in our sources | MatchesNames GitHub Copilot, Cursor and Claude Code. Source: SentinelOne: Prompt Security · Read 27 Sep 2026 |
| Decides on a tool call before it runsDiffers | PartlyControls agent actions, including in agentic browsers; decisions on coding agent tool calls are not described. Source: Akamai Workforce Protector (formerly LayerX) · Read 11 Oct 2026 | Not in our sources |
| Controls what goes into browser AI | MatchesControls prompts and data exchanges, with warn, redact, block and guide. Source: Akamai Workforce Protector (formerly LayerX) · Read 11 Oct 2026 | MatchesThe browser extension inspects prompts and redacts sensitive data. Source: Prompt Security blog: browser and endpoint sensors · Read 11 Oct 2026 |
| Rolls out through EDR or device management you runDiffers | Not in our sources | PartlyIts own agent and extension, managed in the SentinelOne console; it does not ride on other EDR or MDM tools. Source: Prompt Security blog: browser and endpoint sensors · Read 11 Oct 2026 |
| Can warn or ask instead of only blockingDiffers | MatchesWarn and guide are actions alongside redact and block. Source: Akamai Workforce Protector (formerly LayerX) · Read 11 Oct 2026 | Not in our sources |
| Can block an agent, tool or actionDiffers | MatchesBlock is one of its actions. Source: Akamai Workforce Protector (formerly LayerX) · Read 11 Oct 2026 | Not in our sources |
| Has a watch-only or simulation mode | Not in our sources | Not in our sources |
| Records who or what took each action | Not in our sources | Not in our sources |
| Also covers SaaS, cloud or homegrown AIDiffers | PartlyCovers AI inside SaaS and web applications through the browser. Source: Akamai Workforce Protector (formerly LayerX) · Read 11 Oct 2026 | MatchesCovers homegrown AI apps from testing to runtime. Source: SentinelOne: Prompt Security · Read 27 Sep 2026 |
| Has a public price or tiers (vendor site or marketplace) | Not in our sources | Not in our sources |
| Built into | None | Built into the SentinelOne Singularity Platform. Source: SentinelOne: Prompt Security · Read 27 Sep 2026 |
| Works with | None in our sources | None in our sources |
| Price | Not published (demo request only). Source: Akamai Workforce Protector (formerly LayerX) · Read 11 Oct 2026 | Not published. Source: SentinelOne: Prompt Security · Read 27 Sep 2026 |
Where do they differ?
- On-device control: Workforce Protector partly describes it; Prompt Security describes it.
- Names the coding agents it covers: Workforce Protector is not in our sources; Prompt Security matches.
- Decides on a tool call before it runs: Workforce Protector partly matches; Prompt Security is not in our sources.
- Rolls out through EDR or device management you run: Workforce Protector is not in our sources; Prompt Security partly matches.
- Can warn or ask instead of only blocking: Workforce Protector matches; Prompt Security is not in our sources.
- Can block an agent, tool or action: Workforce Protector matches; Prompt Security is not in our sources.
- Also covers SaaS, cloud or homegrown AI: Workforce Protector partly matches; Prompt Security matches.
Choose Workforce Protector if
- Most AI use happens in browsers and you want to warn, redact or guide rather than block
- People use agentic browsers or AI assistants inside SaaS apps
Choose Prompt Security if
- You already run SentinelOne Singularity
- You need an inventory of AI tools and coding assistants first
Which limits should you check?
Workforce Protector
- Coding agents in a terminal and MCP servers on the device are not described on the page we read.
- The acquisition date is not stated on the page, and no pricing is published.
Prompt Security
- Two new local sensors to roll out, a browser extension and an endpoint agent, unless you already run SentinelOne.
- Tool-call decisions, blocking, warning and activity records for agent actions are not described on the pages we read, and no pricing is published.