# Data loss prevention for enterprise buyers: what AI models recommend, November 2026

Gane Index, November 2026 Edition. Asked as "data loss prevention platform" and as "DLP tool", six framings each, to fourteen models with search on, on behalf of an enterprise B2B company. Page: https://www.gane.ai/index/it/security/data-loss-prevention/enterprise

**Standing:** Microsoft Purview DLP leads with 68% of first choices; verdict clear leader. 47 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| Rank | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | [Microsoft Purview DLP](https://www.gane.ai/index/it/vendors/microsoft-purview-dlp/index.md) | 68% | 11% | 75 |
| 2 | [Forcepoint DLP](https://www.gane.ai/index/it/vendors/forcepoint-dlp/index.md) | 11% | 22% | 65 |
| 3 | [Netskope DLP](https://www.gane.ai/index/it/vendors/netskope-dlp/index.md) | 6% | 12% | 48 |
| 4 | [Zscaler Internet Access](https://www.gane.ai/index/it/vendors/zscaler-internet-access/index.md) | 4% | 14% | 28 |
| 5 | [Symantec Data Loss Prevention](https://www.gane.ai/index/it/vendors/symantec-data-loss-prevention/index.md) | 4% | 33% | 64 |
| 6 | [Fortra DLP](https://www.gane.ai/index/it/vendors/fortra-dlp/index.md) | 2% | 12% | 24 |
| 8 | [Digital Guardian](https://www.gane.ai/index/it/vendors/digital-guardian/index.md) | 2% | 40% | 10 |
| 9 | [Proofpoint Enterprise DLP](https://www.gane.ai/index/it/vendors/proofpoint-enterprise-dlp/index.md) | 0% | 11% | 35 |
| 10 | [Cyberhaven](https://www.gane.ai/index/it/vendors/cyberhaven/index.md) | 0% | 8% | 25 |
| 11 | [Nightfall AI](https://www.gane.ai/index/it/vendors/nightfall-ai/index.md) | 0% | 0% | 19 |
| 12 | [DoControl](https://www.gane.ai/index/it/vendors/docontrol/index.md) | 0% | 0% | 12 |
| 13 | [Palo Alto Networks Enterprise DLP](https://www.gane.ai/index/it/vendors/palo-alto-networks-enterprise-dlp/index.md) | 0% | 17% | 12 |

Rank is by share of first choices among all 79 products named; products with the same share are tied, and the order among them carries no meaning. The table lists those with at least 10 labels.

## Each model's first choice on the direct prompt

- Claude Haiku 4.5: Forcepoint DLP; alternatives Cyberhaven, Fortra DLP, Microsoft Purview DLP, Proofpoint Enterprise DLP
- GPT-5.4 mini: Forcepoint DLP; alternatives Microsoft Purview DLP, Proofpoint Enterprise DLP, Symantec Data Loss Prevention
- Gemini 3.5 Flash: Microsoft Purview DLP; alternatives Forcepoint DLP, Fortra DLP, Netskope DLP, Symantec Data Loss Prevention
- Perplexity Sonar: Microsoft Purview DLP; alternatives Cyberhaven, Cyera, Forcepoint DLP, Mimecast Incydr
- Grok 4.20: Microsoft Purview DLP; alternatives Forcepoint DLP, Netskope DLP, Palo Alto Networks Enterprise DLP, Zscaler Data Loss Prevention
- Mistral Small: Microsoft Purview DLP; alternatives Forcepoint DLP, Palo Alto Networks Enterprise DLP, Symantec Data Loss Prevention
- DeepSeek V4 Flash: Forcepoint DLP, Microsoft Purview DLP; alternatives Proofpoint Enterprise DLP, Symantec Data Loss Prevention
- Llama 4 Maverick: Microsoft Purview DLP
- Qwen 3.7 Flash: Microsoft Purview DLP; alternatives Cyberhaven, Digital Guardian, DoControl, Forcepoint DLP
- Kimi K2: Netskope One Platform, Zscaler Internet Access; alternatives Microsoft Purview DLP, Palo Alto Networks Enterprise DLP, Proofpoint Enterprise DLP
- GLM 4.7 FlashX: Microsoft Purview DLP; alternatives Forcepoint DLP, Symantec Data Loss Prevention, Teramind DLP
- MiniMax M2.5: no first choice
- GPT-6 Luna: Netskope DLP; alternatives Forcepoint DLP, Microsoft Purview DLP, Proofpoint Enterprise DLP
- Muse Glimmer 30B: Netskope DLP, Zscaler Internet Access; alternatives Forcepoint DLP, Fortra DLP, Microsoft Purview DLP, Symantec Data Loss Prevention

## Sources the answers cite

77 of 84 answers came back with a source list, from 14 of 14 models. Sites named in the most answers:

- strac.io: 37 answers, 53 citations
- checkpoint.com: 31 answers, 31 citations
- forcepoint.com: 25 answers, 35 citations
- docontrol.io: 25 answers, 28 citations
- aimultiple.com: 23 answers, 27 citations
- fortra.com: 23 answers, 27 citations
- netwrix.com: 21 answers, 21 citations
- underdefense.com: 19 answers, 19 citations

Pages named in the most answers:

- https://checkpoint.com/cyber-hub/threat-prevention/what-is-data-loss-prevention/top-6-data-loss-prevention (31 answers)
- https://docontrol.io/blog/top-enterprise-dlp-vendors (25 answers)
- https://netwrix.com/en/resources/blog/dlp-solutions (21 answers)
- https://aimultiple.com/dlp-software (19 answers)
- https://fortra.com/blog/top-10-enterprise-data-loss-prevention-dlp-vendors-2026 (19 answers)
- https://underdefense.com/blog/dlp-solutions (19 answers)
- https://strac.io/blog/top-data-loss-prevention-dlp-tools (17 answers)
- https://static.fortra.com/corporate/pdfs/other/fta-corp-radicati-data-loss-prevention-market-quadrant-report-2024.pdf (16 answers)
- https://cio.economictimes.indiatimes.com/tools/best-dlp-software/126136531 (11 answers)
- https://cyera.com/blog/21-best-data-loss-prevention-software-for-2026 (11 answers)

## Warned against

- Symantec Data Loss Prevention: 21 of 64 labels negative. "Legacy heavyweight DLP tools (older Symantec/CA/Blue Coat, older McAfee/Trellix, EMC RSA DLP, etc.) (due to steep learning curves, performance impacts, integration challenges, and high costs)" (GLM 4.7 FlashX, negative prompt)
- Forcepoint DLP: 14 of 65 labels negative. "A critical security flaw in Forcepoint One DLP Client allows attackers to bypass vendor-implemented Python restrictions and execute arbitrary code on enterprise endpoints" (Claude Haiku 4.5, negative prompt)
- Trellix DLP: 10 of 20 labels negative. "often seen as legacy-focused with gaps in modern cloud/AI detection, integration issues, and higher false positive rates" (Grok 4.20, negative prompt)
- Microsoft Purview DLP: 8 of 75 labels negative. "Microsoft Purview DLP (due to negative sentiment shares, common DLP complaints, and perception as a suite component rather than a standalone, deeply configurable DLP solution)" (GLM 4.7 FlashX, negative prompt)

## Movement since October 2026

Floor: 11 points of share, measured on the calibration repeat.
Same leader: Microsoft Purview DLP at 68%.

- Microsoft Purview DLP: 57% to 68%, +11. Inside the floor by 0 points · rank 1 of 79, unchanged.
- Cyberhaven: 6% to 0%, −6. Inside the floor by 5 points · rank 4 → 10 of 79.
- Forcepoint DLP: 15% to 11%, −4. Inside the floor by 7 points · rank 2 of 79, unchanged.
- Zscaler Internet Access: 0% to 4%, +4. Inside the floor by 7 points · rank 10 → 4 of 79.
- Proofpoint Enterprise DLP: 4% to 0%, −4. Inside the floor by 7 points · rank 6 → 9 of 79.
- Trellix DLP: 4% to 0%, −4. Inside the floor by 7 points · rank 7 → 79 of 79.
- Symantec Data Loss Prevention: 7% to 4%, −3. Inside the floor by 8 points · rank 3 → 5 of 79.
- Netskope DLP: 4% to 6%, +2. Inside the floor by 9 points · rank 5 → 3 of 79.
- Fortra DLP: 0% to 2%, +2. Inside the floor by 9 points · rank 12 → 6 of 79.
- Digital Guardian: 0% to 2%, +2. Inside the floor by 9 points · rank 13 → 8 of 79.
- Nightfall AI: 0% to 0%, ±0. Inside the floor by 11 points · rank 11 of 79, unchanged.
- DoControl: 0% to 0%, ±0. Inside the floor by 11 points · rank 36 → 12 of 79.

## Record

- Method: https://www.gane.ai/index/it/methodology
- License: CC BY 4.0. Cite as Gane Index, November 2026 Edition, www.gane.ai/index/it.