Cloud, Network & Data Security
Protect cloud workloads, networks and sensitive data with controls that follow the data wherever it goes, configured correctly from the start and kept that way.
Is this for you?
You might need this if…
Your cloud estate has grown quickly across subscriptions and accounts, and nobody is sure how it is all configured.
Your network is flat, so a single infected laptop could reach servers, backups and production systems.
You don’t know where your sensitive data is stored, who can share it or whether it leaves the organisation.
You’re preparing for Microsoft 365 Copilot or other AI tools and worry they will surface data people shouldn’t see.
What we deliver
What it covers
Cloud security posture management
We continuously check your Azure, AWS and Google Cloud environments against security benchmarks and fix risky configurations such as exposed storage and excessive permissions. Policies as code keep new resources secure from the start.
Network security and segmentation
We design and implement next-generation firewalls and segmentation that separate users, servers, backups and critical systems. If an attacker does get in, their ability to move through the network is sharply limited.
Data protection and loss prevention
We help you find and classify sensitive data, then apply labels and loss-prevention policies with tools such as Microsoft Purview. Sensitive information stays protected when it is shared, emailed or used by AI.
Encryption and key management
We design encryption for data at rest and in transit, and set up key management with hardware security modules or cloud key vaults. You control who holds the keys, which matters for both security and data sovereignty.
Email and endpoint security
We harden email against phishing and spoofing with SPF, DKIM, DMARC and advanced filtering, and protect devices with modern endpoint detection and response. These are common entry points for attackers, so getting them right pays off quickly.
Our approach
How we work
01
Assess
We review cloud configurations, network design, data flows and existing controls to find the exposures that matter most.
02
Design
A target security architecture for cloud, network and data, built on the platforms you already use wherever possible.
03
Implement
Controls are rolled out in stages, starting in monitoring mode where needed, so protection increases without disrupting the business.
04
Monitor
Continuous posture checks and alerts catch drift and new risks, and feed into your security operations.
Best practices
What we bring to every engagement
Guardrails as code
Security policies built into infrastructure as code stop misconfigurations before they reach production.
Segment what matters first
Separating critical systems and backups first gives the biggest risk reduction, rather than trying to segment everything at once.
Classify before you protect
Data protection only works when you know which data is sensitive, so classification comes before blocking rules.
Least privilege in the cloud
Excessive permissions and long-lived access keys are frequent causes of cloud breaches, so we tighten them early.
Use native controls first
Built-in security in Azure, AWS and Microsoft 365 is often already licensed and integrates better than add-on tools.
Keep control of the keys
For sensitive and regulated data, customer-managed keys and EU hosting support sovereignty and regulatory demands.
Outcomes
What you get
- A cloud security posture baseline, with risky configurations fixed
- A segmented network that limits attacker movement
- A data map and classification scheme for sensitive information
- Data loss prevention policies in place
- An encryption and key management design
- Hardened email and endpoint protection
AI-powered
Unleash the power of AI
We offer the possibility of using AI throughout this work: ready-to-use AI tools, or a customised version built for your organisation that can run inside your own infrastructure. In cloud, network and data security, AI helps discover and classify sensitive data across large file stores, prioritises misconfigurations by real exposure and spots unusual data movement that may signal a leak.
Starter offer
Cloud Security Posture Review
A fixed-scope, four-week review of your cloud environments that finds risky configurations, excessive permissions and exposed data, fixes the most critical issues and gives you a plan for the rest.
Week 1
Connect
Kick-off, read-only access to your cloud subscriptions and accounts, and interviews on architecture and data.
Week 2
Analyse
Configuration, identities, network exposure and data storage reviewed against recognised benchmarks such as the CIS Benchmarks.
Week 3
Remediate
The most critical findings fixed together with your team, without disrupting running services.
Week 4
Plan
Remaining findings prioritised, with guardrails and a roadmap presented to IT and management.
You receive
- A cloud security posture report with risk ratings
- Critical misconfigurations fixed during the review
- A list of excessive permissions and exposed data
- A prioritised plan and guardrails to keep posture under control
FAQ
Frequently asked questions
Isn’t our cloud provider responsible for security?
Cloud providers secure the underlying platform, but under the shared responsibility model you remain responsible for configuration, identities, access and data. Many cloud incidents come from misconfiguration on the customer side, which is why posture management matters.
How long does it take to segment our network?
A segmentation design typically takes a few weeks. Implementation is usually done in stages over several months, starting with the most critical systems and backups, so the business keeps running throughout.
Will data loss prevention stop people doing their jobs?
Not if it is introduced properly. We start in monitoring mode, learn how data is actually used and then enforce policies gradually with clear user guidance, so protection grows without disrupting work.
Can you work with our current network and cloud suppliers?
Yes. Altechy is your single point of contact and coordinates specialists from our partner network with your existing suppliers and IT team. We build on the firewalls, cloud platforms and tools you already have wherever they fit.
Related services
Identity & Access Management Cloud Operations & FinOps Network & Connectivity Microsoft 365 & Collaboration Security Operations (SOC & MDR) Cloud Strategy & Migration
Let’s protect your cloud and data
Book a free 60-minute idea session. We explore your challenges and opportunities with you, and suggest where to start — with no obligation.