Security

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Security

library(TextAnalysisR)

mydata <- SpecialEduTech[seq_len(5), c("title", "abstract")]
united <- unite_cols(mydata, listed_vars = c("title", "abstract"))
toks   <- prep_texts(united, text_field = "united_texts")
quanteda::ndoc(toks)

## [1] 5

TextAnalysisR includes built-in security features.

Input Validation

Feature	Description
File uploads	Extension whitelist, 50MB limit, malicious content scanning
Text and LLM inputs	XSS and prompt injection filtering
Column names	Regex validation to prevent formula injection

API Key Security

Stored via .env or environment variables (never logged or persisted)
Masked input field with format validation
Transmitted via secure headers only

Environment Variable: add OPENAI_API_KEY=... to .Renviron, or set in-session:

Sys.setenv(OPENAI_API_KEY = "sk-...")

Network Security

Content Security Policy, X-Frame-Options, SRI for CDN resources
HTTPS with TLS 1.2+ via Nginx/Cloudflare

Data Protection

Session-scoped with no persistent storage, cookies, or identifiers
Rate limiting: 100 requests/hour per session
Security event logging with sanitized error messages
Local processing option (FERPA/HIPAA compatible)

Infrastructure

Cloudflare DNS with DDoS protection
Docker + Nginx deployment

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