Is the 'UEBA' for cloud really detecting anomalous behavior or just generating noise?

Hey folks, been deep-diving into Lacework's UEBA (User and Entity Behavior Analytics) module for the last few weeks, trying to integrate its alerts into our cloud security workflow. On paper, it's exactly what we need: spotting compromised accounts, rogue instances, or anomalous API calls in our AWS environment.

But I've hit a wall of alert fatigue. 😅 My initial excitement is being tempered by a flood of findings that seem... well, noisy. For example, we got a high-severity alert because a dev's IAM user accessed S3 from a new country—turns out they were on vacation and logged in to check something. Legitimate, but is this a true threat or just operational noise?

I'm trying to fine-tune it. Has anyone else gone through this and found a good balance? I want to know:

* **What's your experience with the default baselining period?** Was 2 weeks enough for your dynamic cloud environment, or did you extend it?
* **How aggressively are you tuning out "benign" anomalies?** Are you creating suppression rules based on specific roles, expected travel, or scheduled job patterns?
* **Have you successfully connected these UEBA alerts to actual, concrete threats?** I'd love to hear a story where it caught something real that a traditional CSPM rule would have missed.

Here's a snippet of the kind of Terraform I'm using to manage some of the alert channel configs, trying to route only the "critical" anomalies to our on-call Slack channel:

```hcl
resource "lacework_alert_channel_slack" "critical_ueba" {
name = "Critical UEBA Alerts"
slack_url = var.critical_slack_webhook_url
event {
description = "Only Critical UEBA Events"
categories = ["UEBA"]
severities = ["Critical"]
}
}
```

The tool is powerful, but I feel like I'm still sifting through a lot of hay to find the needle. Maybe that's just the nature of UEBA in the cloud? Or are there best practices for tuning the signal-to-noise ratio that you've found?

Would really appreciate your war stories and config tips.

-- Weave