Our Approach to Zero-Trust Security

CloudNexus operates on a Zero-Trust Security Model where every request, user, device, and network segment is treated as untrusted by default. Our security architecture is built from the ground up with defense-in-depth principles, ensuring that no single point of failure can compromise your data.

We invest over $50M annually in security research, infrastructure hardening, and third-party penetration testing. Our security team comprises 120+ professionals with backgrounds in cryptography, network security, and application security from organizations including Google, NSA, and MITRE.

Our infrastructure is segmented into isolated security zones with strict access controls between each layer. The architecture follows the principle of least privilege at every level, from network routing to API access.

Each layer operates independently with its own security controls. If one layer is compromised, adjacent layers maintain their integrity through strict isolation boundaries and micro-segmentation. Our control plane is completely separated from the data plane, ensuring that management operations cannot intercept customer traffic.

Data protection is fundamental to our platform. We implement encryption at every stage — in transit, at rest, and in processing. Our cryptographic infrastructure uses hardware security modules (HSMs) and supports customer-managed keys (CMK) with full lifecycle management.

Key Management

All encryption keys are managed through our FIPS 140-2 Level 3 validated Key Management Service (KMS). We support both platform-managed keys and customer-managed keys (CMK) stored in dedicated HSMs. Key rotation occurs automatically every 90 days, and keys are never stored in plaintext.

# CloudNexus KMS Configuration
key_management:

  provider: "CloudNexus HSM Cluster"

  fips_level: 3

  rotation_policy:

    interval: "90d"

    auto_rotate: true

    notification: "7d_before"

  key_types:

    - algorithm: AES-256-GCM

      usage: "data_encryption"

    - algorithm: RSA-4096

      usage: "key_encryption"

    - algorithm: Ed25519

      usage: "authentication"

  cmk_support: true

  bring_your_own_key: true

Our global network infrastructure implements multiple layers of protection against DDoS attacks, unauthorized access, and traffic interception. With 1.2 Tbps of mitigation capacity and anycast routing, we absorb and neutralize threats before they reach customer workloads.

DDoS Mitigation Performance

{

  "ddos_mitigation": {

    "capacity_tbps": 1200,

    "attack_types_blocked": [

      "SYN Flood", "UDP Amplification",

      "HTTP Flood", "DNS Amplification",

      "NTP Amplification", "Memcached"

    ],

    "detection_time_ms": <500,

    "mitigation_activation_ms": <30,

    "false_positive_rate": "0.001%",

    "attacks_blocked_2024": 142857

  }

}

CloudNexus implements a comprehensive Identity and Access Management (IAM) system with role-based access control (RBAC), attribute-based access control (ABAC), and policy-as-code capabilities. Every identity is verified, every action is authorized, and every decision is logged.

Session Management

All sessions use cryptographically secure tokens with configurable lifetime limits. Session tokens are bound to device fingerprint, IP geolocation, and user-agent hash to prevent session hijacking. Concurrent session limits can be enforced per role.

package cloudnexus.authz

# Allow read access to production resources
# only during business hours with MFA

allow if {
    input.action == "read"
    input.resource.env == "production"
    input.user.role in ["engineer", "sre"]
    input.mfa_verified
    is_business_hours(input.timestamp)
}

allow if {
    input.action == "write"
    input.resource.env == "staging"
    input.user.role == "engineer"
    input.mfa_verified
}

Our threat modeling process follows the STRIDE methodology and is conducted for every new feature, infrastructure change, and third-party integration. Below are key threats identified and their mitigation strategies.

CloudNexus maintains a comprehensive compliance program with regular third-party audits and certifications. Our compliance framework covers data privacy, information security, and industry-specific regulatory requirements.

Audit Process

All compliance audits are performed by independent, accredited third-party auditors. Audit reports are reviewed quarterly by our Security Governance Board. Customers can request access to audit reports under NDA through our compliance portal.

Our incident response program follows NIST SP 800-61 Rev. 2 guidelines and is continuously refined through tabletop exercises and post-incident reviews. Our Security Operations Center (SOC) operates 24/7/365 with dedicated analysts and automated response playbooks.

Response Timeline

Communication

We commit to transparent communication during security incidents. Customers are notified through the Status Page, email, and dedicated Slack webhook. For critical incidents (P0), a dedicated incident manager provides updates every 30 minutes until containment is achieved.

CloudNexus operates across 50+ data centers worldwide, each meeting Tier III or Tier IV standards. Physical access is controlled through multiple layers of authentication, and all facilities are monitored 24/7 by on-site security teams and CCTV systems.

CloudNexus maintains comprehensive, tamper-evident audit logs for all administrative and data access operations. Logs are immutable, cryptographically chained, and retained for a minimum of 365 days. Customers can export logs to their own SIEM systems via our CloudTrail-compatible API.

{

  "event_id": "evt_9a8b7c6d5e4f3a2b1c0d",

  "timestamp": "2025-01-15T14:32:07.891Z",

  "event_type": "iam:user.created",

  "actor": {

    "type": "user",

    "id": "usr_a1b2c3d4e5f6",

    "email": "admin@example.com",

    "mfa_used": true,

    "session_id": "sess_xyz789"

  },

  "resource": {

    "type": "iam:user",

    "id": "usr_new789",

    "name": "new-developer"

  },

  "context": {

    "ip_address": "203.0.113.42",

    "user_agent": "CloudNexus CLI/4.2.1",

    "geo_location": "US-East-1",

    "request_id": "req_abc123"

  },

  "signature": "sha256:a1b2c3...",

  "log_chain_hash": "sha256:prev_hash_link"

}

Log Features