> ## Documentation Index
> Fetch the complete documentation index at: https://docs.upsonic.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Technical Security Policies

> Protect API keys, passwords, and security credentials

```bash theme={null}
# pip install "upsonic[safety-engine]"
uv pip install "upsonic[safety-engine]"
```

## What is Technical Security Policy?

Technical security policies detect and protect API keys, access tokens, passwords, private keys, database credentials, encryption keys, and other technical security credentials.

## Why its Important?

Technical security policies are essential for protecting sensitive technical credentials and preventing security breaches. These policies prevent API keys, passwords, and tokens from being sent to LLMs, which helps protect against unauthorized access, data breaches, and security vulnerabilities.

* **Prevents sending credentials to LLM**: Blocks API keys, passwords, tokens, and other security credentials from being processed by language models
* **Protects against security breaches**: Prevents sensitive technical information from being exposed to third-party LLM providers or stored in logs
* **Maintains system security**: Ensures your AI agent doesn't process or generate content that could compromise system security

## Anonymize (Unique Random Placeholders)

```python theme={null}
from upsonic import Agent, Task
from upsonic.safety_engine.policies import TechnicalSecurityAnonymizePolicy

agent = Agent(
    "anthropic/claude-sonnet-4-6",
    user_policy=TechnicalSecurityAnonymizePolicy,
    debug=True
)

task = Task("My API key is sk-1234567890abcdefghijklmnopqrstuvwxyz")
result = agent.print_do(task)
print(result)
```

## Replace (Fixed Placeholder)

```python theme={null}
from upsonic import Agent, Task
from upsonic.safety_engine.policies import TechnicalSecurityReplacePolicy

agent = Agent(
    "anthropic/claude-sonnet-4-6",
    user_policy=TechnicalSecurityReplacePolicy,
    debug=True
)

task = Task("My API key is sk-1234567890abcdefghijklmnopqrstuvwxyz")
result = agent.print_do(task)
print(result)
```

## Block

```python theme={null}
from upsonic import Agent, Task
from upsonic.safety_engine.policies import TechnicalSecurityBlockPolicy

agent = Agent(
    "anthropic/claude-sonnet-4-6",
    user_policy=TechnicalSecurityBlockPolicy,
    debug=True
)

task = Task("My API key is sk-1234567890abcdefghijklmnopqrstuvwxyz")
result = agent.print_do(task)
print(result)
```

## Available Variants

* `TechnicalSecurityBlockPolicy`: Pattern detection with blocking
* `TechnicalSecurityBlockPolicy_LLM`: LLM-powered block messages
* `TechnicalSecurityBlockPolicy_LLM_Finder`: LLM detection for better accuracy
* `TechnicalSecurityAnonymizePolicy`: Anonymizes security credentials with unique random replacements
* `TechnicalSecurityReplacePolicy`: Replaces with fixed placeholder
* `TechnicalSecurityRaiseExceptionPolicy`: Raises DisallowedOperation exception
* `TechnicalSecurityRaiseExceptionPolicy_LLM`: LLM-generated exception messages