Cloud security assessment
Azure Security Assessment
Azure is where your workloads run and your customers' data lives, and what Microsoft secures ends at the platform. This is a structured review of how your subscriptions are set up and where they are exposed, with the shortest credible path to a stronger posture, so you find the exposure before someone else does.
Book a discovery callThe subscription is yours to secure
Microsoft secures the foundations Azure runs on, the datacentres and the hardware. Everything you build inside a subscription is yours to secure.
Most incidents start with an ordinary mistake. An Owner role handed out to unblock a deployment and never taken back. A storage account left reachable from the internet because shipping came first. Neither announces itself, and the list grows as teams move fast.
A review of your subscriptions finds these while they are still cheap to fix. You get the handful of changes that genuinely reduce your risk, in the order you should make them.
What we look at
We review your environment against industry-recognised best practices, including Microsoft's own security guidance, across the areas where Azure risk concentrates. We look only at the services you actually run, and turn what we find into a prioritised roadmap.
Identity and access
The shortest route to a whole tenant is one over-privileged account. We look at how identities are managed across your account, so a single stolen sign-in cannot turn into full control.
Network exposure
A management port open to the internet is found and hammered within minutes of going live. We map what is reachable from outside, and how far a break-in could spread inside.
Data protection and storage
Storage in Azure is private until a setting opens it, and one change can expose a container to anyone who can guess its name, no sign-in needed. We review what is reachable, how it is protected, and whether it could be recovered.
Secrets, keys and certificates
Keys and secrets are the master copies. Whoever holds them holds the data they protect. A key store reachable over the public network, or one where secrets never expire, turns a single leak into a lasting one. We trace where these live, how they rotate, and who can reach them.
Threat protection and posture
Azure shows you a baseline view of your posture, but catching an attack as it happens depends on the deeper protections being switched on. We check whether that protection actually covers what you run.
Logging and detection
An intrusion is only as visible as your logs allow. We confirm the right activity is captured and kept, and that the changes that matter would raise an alarm.
What you walk away with
A prioritised picture of where your Azure environment stands. Every finding ranked by the risk to your business and the effort to fix it, with the shortest route to a stronger posture that starts with what is most exposed. A report your board and your engineers can both act on, and the security evidence a funding round's technical due diligence will look for.
We map the path and tell you what to fix first. And if you want our help making the changes, we will be happy to give it.
The shape of a finding
A storage account open to the internet
- What it is
- A storage account is reachable from the public internet and allows anonymous access, so no sign-in is needed to read it.
- Why it matters
- Anyone who can guess the name can read the data, with no credential and little trace.
- The fix
- Turn off anonymous access and reach it over a private connection from inside your environment.
- Fix within
- 7 days
An illustration of how we structure a finding. The data is generic.
Want a maturity rating across your whole security programme? The Custos Secure Baseline scores your security maturity and maps the way to the standard enterprise security reviews expect.
See the baselineCustos was founded by Liran Aknin, who has run security operations and hardened cloud environments in production. The work is delivered to that standard.
Who you work withSee where your Azure security stands
A 30-minute discovery call to scope the review across your subscriptions and agree where to look first.
Book a discovery call