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| 1 | +# FluidStack Security Compliance |
| 2 | + |
| 3 | +This document outlines FluidStack's security capabilities and compliance with Brev's security requirements. |
| 4 | + |
| 5 | +## ✅ FULLY COMPLIANT |
| 6 | + |
| 7 | +### Disk Encryption |
| 8 | +- **Encryption at Rest**: Hardware-level self-encrypting drives (SEDs) |
| 9 | +- **Implementation**: Automatic encryption without performance overhead |
| 10 | +- **Coverage**: All data stored on FluidStack infrastructure |
| 11 | +- **Standard**: Industry-standard encryption algorithms |
| 12 | + |
| 13 | +### Transit Encryption |
| 14 | +- **Protocol**: SSL/TLS encryption for all network traffic |
| 15 | +- **Coverage**: All API communications and data transfer |
| 16 | +- **Implementation**: Automatic encryption for all connections |
| 17 | + |
| 18 | +### Network Isolation |
| 19 | +- **Project-Level Isolation**: Dedicated L3 networks per project |
| 20 | +- **Technology**: VXLAN and eBPF for network segmentation |
| 21 | +- **Isolation Scope**: Hardware, network, and storage levels |
| 22 | +- **Multi-Tenancy**: Single-tenant by default, no shared clusters |
| 23 | + |
| 24 | +### Physical Security |
| 25 | +- **Data Centers**: Tier-3 facilities with 24/7 surveillance |
| 26 | +- **Access Controls**: Biometric access controls and mantrap entry systems |
| 27 | +- **Monitoring**: Continuous monitoring with CCTV coverage |
| 28 | +- **Personnel**: Restricted access to authorized personnel only |
| 29 | + |
| 30 | +### Compliance Certifications |
| 31 | +- **HIPAA**: Health Insurance Portability and Accountability Act |
| 32 | +- **GDPR**: General Data Protection Regulation |
| 33 | +- **ISO27001**: Information Security Management System |
| 34 | +- **SOC 2 TYPE I**: Service Organization Control 2 |
| 35 | + |
| 36 | +## ⚠️ PARTIAL COMPLIANCE |
| 37 | + |
| 38 | +### Network Security Model |
| 39 | +- **✅ Outbound Traffic**: Instances can egress to public internet (compliant) |
| 40 | +- **✅ Project Isolation**: Strong isolation between projects (compliant) |
| 41 | +- **❓ Inbound Traffic**: "Deny all inbound by default" behavior not explicitly documented |
| 42 | +- **❓ Instance-Level Firewalls**: No API endpoints for individual instance firewall rules |
| 43 | + |
| 44 | +### Firewall Management |
| 45 | +- **Limitation**: Security managed at project/cluster level, not per-instance |
| 46 | +- **API Gap**: No dedicated firewall rule management endpoints in Infrastructure API |
| 47 | +- **Workaround**: Project-level isolation provides security boundary |
| 48 | +- **Impact**: May not provide granular instance-level firewall control |
| 49 | + |
| 50 | +## ❌ LIMITATIONS |
| 51 | + |
| 52 | +### Granular Network Control |
| 53 | +- **Missing Feature**: Individual instance firewall rule management |
| 54 | +- **Alternative**: Project-level network isolation |
| 55 | +- **API Support**: No explicit firewall rule endpoints found |
| 56 | +- **Security Model**: Relies on project boundaries for isolation |
| 57 | + |
| 58 | +### Network Security APIs |
| 59 | +- **Firewall Rules**: No API endpoints for creating/managing firewall rules |
| 60 | +- **Security Groups**: No security group concept or API |
| 61 | +- **Network ACLs**: No network access control list management |
| 62 | + |
| 63 | +## Security Implementation Notes |
| 64 | + |
| 65 | +### Default Security Posture |
| 66 | +``` |
| 67 | +✅ Data encrypted at rest (hardware-level SEDs) |
| 68 | +✅ Data encrypted in transit (SSL/TLS) |
| 69 | +✅ Project-level network isolation (VXLAN/eBPF) |
| 70 | +✅ Physical security (Tier-3 data centers) |
| 71 | +❓ Instance-level firewall rules (not documented) |
| 72 | +❓ "Deny all inbound" default behavior (needs verification) |
| 73 | +``` |
| 74 | + |
| 75 | +### Recommended Security Practices |
| 76 | + |
| 77 | +1. **Project Organization**: Use separate projects for different security zones |
| 78 | +2. **Network Design**: Leverage project-level isolation for security boundaries |
| 79 | +3. **Access Control**: Implement application-level security controls |
| 80 | +4. **Monitoring**: Use FluidStack's audit logging and monitoring features |
| 81 | + |
| 82 | +### Security Verification Required |
| 83 | + |
| 84 | +Before production deployment, verify: |
| 85 | + |
| 86 | +1. **Default Inbound Policy**: Confirm if inbound traffic is denied by default |
| 87 | +2. **Firewall APIs**: Check for any undocumented firewall management endpoints |
| 88 | +3. **Network Behavior**: Test actual network isolation and traffic patterns |
| 89 | +4. **Security Controls**: Validate project-level isolation effectiveness |
| 90 | + |
| 91 | +## Risk Assessment |
| 92 | + |
| 93 | +### Low Risk |
| 94 | +- **Data Encryption**: Excellent hardware-level encryption |
| 95 | +- **Physical Security**: Strong data center security controls |
| 96 | +- **Compliance**: Multiple enterprise certifications |
| 97 | +- **Network Isolation**: Strong project-level isolation |
| 98 | + |
| 99 | +### Medium Risk |
| 100 | +- **Firewall Management**: Limited granular network control |
| 101 | +- **API Limitations**: No explicit firewall rule management |
| 102 | +- **Documentation Gaps**: Some security behaviors not explicitly documented |
| 103 | + |
| 104 | +### Mitigation Strategies |
| 105 | + |
| 106 | +1. **Application Security**: Implement security controls at the application layer |
| 107 | +2. **Project Design**: Use project boundaries as security zones |
| 108 | +3. **Network Architecture**: Design applications to work within project isolation model |
| 109 | +4. **Monitoring**: Implement comprehensive logging and monitoring |
| 110 | + |
| 111 | +## Conclusion |
| 112 | + |
| 113 | +FluidStack provides **excellent foundational security** with hardware-level encryption, strong network isolation, and comprehensive compliance certifications. However, it may not provide the granular instance-level firewall management that some security models require. |
| 114 | + |
| 115 | +**Recommendation**: FluidStack is suitable for workloads that can leverage project-level security isolation. For applications requiring fine-grained instance-level firewall controls, additional verification and testing is recommended. |
| 116 | + |
| 117 | +## References |
| 118 | + |
| 119 | +- [FluidStack Security Documentation](https://www.fluidstack.io/resources/security) |
| 120 | +- [FluidStack Infrastructure API](https://docs.fluidstack.io/api/infrastructure/) |
| 121 | +- [FluidStack Networking Overview](https://docs.fluidstack.io/fluidstack/networking/overview/) |
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