# What is DLP (data loss prevention)?

DLP (Data Loss Prevention) tools try to stop sensitive data, such as customer lists, card numbers or designs, from leaving the company in the wrong way: emailed out, uploaded to a personal cloud or copied to a USB stick. They work by recognising content and applying rules, and they need careful setup to avoid blocking normal work. NetSenX is not a DLP tool and does not read the content of your traffic. What it does, on every plan, is flag unusual outbound transfers, such as a machine suddenly sending far more data to an outside address than it normally does, which is often the visible sign of theft.

FAQ: [What is…? Network and security terms](https://netsenx.com/en/faq/glossary) · https://netsenx.com/en/faq/what-is-dlp-data-loss-prevention

## Read next

- https://netsenx.com/en/what-is-ndr
- https://netsenx.com/en/problems-we-solve

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