> For the complete documentation index, see [llms.txt](https://docs.vectra.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.vectra.ai/operations/detection-specific-guidance/data-gathering-detected-between-brain-and-sensor.md).

# Data Gathering - detected between Brain and Sensor

#### **Problem**

#### Vectra detected data gathering between the brain and the sensor communication during the upgrade process and triggering an alert as "Data gathering: Exfiltration".

#### **Root Cause**

The exchange of information between the brain and the sensor is a standard procedure during updates. However, as per the product design and transparency, we let customers understand fully what's going on in their network (even if it's our own product) and make informed decisions about how to handle that. If the customer does not want to trigger the detection, we request customer to create a triage filter that would normally prevent such alerts during the upgrade process.

#### **Solution**

We need to create a Triage Filter for Brain and Sensor communication. For that:

* Login to the Vectra portal
* Navigate to detection where you found the Vectra Sensor and the Brain communication is identified as "Data gathering"
* Select the detection > Triage
* Create a filter to exclude brain/sensor or sensor/sensor communication during updates.

Below KB may help you to create a "Triage Filter"

[https://support.vectra.ai/vectra/article/KB-VS-2681](/configuration/tuning/triage-best-practices.md)


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