So, Entro's pricing model just did that delightful cloud thing where it scaled exponentially with my machine identities, not my actual usage. The bill arrived and I nearly needed break-glass access to my own defibrillator. It's a solid platform, don't get me wrong, but when the cost of *securing* your non-human identities starts to look like the cost of *running* them, my FinOps soul starts screaming into a void filled with unattributed S3 bills.
I'm now evaluating alternatives for that core machine identity security posture management—certificate lifecycle, secret sprawl detection, anomaly detection on service accounts and IAM roles, that whole shebang. My needs are pretty standard for a mid-sized AWS/GCP multi-cloud shop:
* **Inventory & Classification:** Just knowing what's out there, from AWS IAM Roles to GCP Service Accounts to Azure Managed Identities, and which are overprivileged.
* **Anomaly Detection:** Alerting on a service account suddenly being used from a new region or at 2 AM when it usually sleeps. Basic, but critical.
* **Lifecycle & Hygiene:** Rotating secrets, catching expired certificates before they cause outages, flagging unused identities we can deprecate.
* **No agent where possible.** I want API-based, cloud-native observation first.
What's the community using? I've been poking around and my shortlist is a mess of half-solutions. I'll start:
* **SPIFFE/SPIRE:** The open-source holy grail for *issuing* identities, but it's a whole architecture to run. Great for issuing, less about the ongoing security posture of your existing chaotic sprawl. It's a commitment.
* **Cloud-native tooling + scripts:** This is my current stopgap. A horrifying collection of AWS Config rules, GCP Security Command Center findings, and Python scripts running in a Lambda that sends Slack alerts. It's brittle and I hate maintaining it, but the bill is predictable. Example of the *type* of anomaly check I'm talking about:
```python
# Pseudocode - don't judge me, it's a forum post
def detect_role_anomaly(cloudtrail_events):
for event in cloudtrail_events:
if event.eventName == 'AssumeRole':
if event.sourceIPAddress not in known_cidr_blocks:
send_alert(f"JIT access from {event.sourceIPAddress} for {event.userIdentity.principalId}")
```
* **Vendor Alternatives:** I'm looking at things like **Styra/DAS**, **CloudKnox** (now part of Palo Alto, I think?), and **SailPoint**. They often bundle this into a larger IaC Security or Identity Governance suite, which feels like overkill. Also, their sales reps use the phrase "holistic" unironically, which is a red flag for my budget.
Has anyone actually implemented a coherent, *cost-effective* stack for this that isn't just another expensive SaaS platform? Is the answer just to double down on CSP-native tools (IAM Access Analyzer, GCP Policy Intelligence, etc.) and glue them together with some elbow grease? Or is there a niche tool I've missed that doesn't charge per-identity- per-hour?
your cloud bill is too high
Ah, the classic "secure the foundation" bill that ends up costing more than the house. I've seen this movie before. Your FinOps soul is screaming because it should be - you're hitting the predictable wall where the security vendor's growth metric (identities) directly opposes your cost control metric.
Before you dive into the alternative matrix, have you actually mapped what "exponentially with my machine identities" means in your environment? I've had clients jump ship only to find the next vendor's "usage-based" model had a sneaky clause about API calls per identity, which exploded just the same when they turned on full monitoring.
The real question isn't just what's cheaper than Entro today. It's what pricing variable you can actually control and predict. If you can't tie the cost directly to a business output you manage, you're just swapping one opaque scaling model for another.
Test the migration.
You're right about pricing variables. That's the whole trap.
I found the per-identity model becomes unpredictable at scale, but a pure "usage-based" model on API calls just shifts the risk. You turn on a new detection feature and your costs spike because it's querying more often.
The only model that's worked for us is a flat fee per cloud account under management. It's predictable and scales with our actual business structure, not the chaotic growth of identities within it.
Have you seen any vendors offering that?
Ask me about hidden egress costs.
Flat fee per cloud account sounds predictable until you have to explain why securing 10 prod accounts costs the same as securing 100 dev sandbox accounts that contain nothing. You're paying for empty management planes.
Have you read the fine print on what constitutes an "account"? I've seen that definition get creative at renewal time, especially with nested AWS OUs or GCP folders being counted separately.