# Security & Privacy
StackAI prioritizes data protection and compliance, making it suitable for industries with stringent regulatory requirements. Key security features include:
* **Compliance Certifications**: Adherence to SOC 2 Type II, HIPAA, and GDPR standards ensures that data handling meets global regulatory requirements.
* **Guardrails**: LLMs can deviate from their initial requirements by answering questions they were not prompted to answer. Guardrails allow our customers to ensure LLMs do not answer questions and topics they are not supposed to reply.
* **PII Protection**: Built-in mechanisms detect and mask Personally Identifiable Information (PII), safeguarding sensitive data during processing.
[PII protection at the LLM node](/workflow-builder/core-nodes/ai-agent-node/llm-hosting-and-governance/llm-provider-governance.md):
* Data Retention Policies: Organizations can define data retention durations, ensuring data is stored only as long as necessary.
* No Data Training: StackAI ensures that user data is not used to train AI models as part of its enterprise agreements with providers, maintaining data confidentiality.
#### Multi-Factor Authentication
To turn on MFA, go to Settings -> Feature Access -> Authentication. Click manage and turn on MFA. This will apply to all users in your organization.
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