Glossary · Security and privacy
Purpose limitation
Restricting data use to specified, legitimate purposes. Broad consent or vague product improvement language weakens the practical boundary.
Terms this definition uses
Security and privacy
Where an agent, a tool or a page can be turned against its operator, and the controls that limit the damage without proving safety.
Indirect prompt injection · Direct prompt injection · Jailbreak · Data exfiltration · Sensitive information disclosure · Secret leakage · Insecure output handling · Excessive agency · Least privilege · Trust boundary · Input validation · Output validation · Allowlist · Denylist · SSRF · RCE · Credential scope · OAuth scope · API key · Bearer token · mTLS · Rate-limit policy · Audit log · PII · Data minimization · Retention period · Data residency · Tenant isolation · Threat model
← Data minimization · Retention period →
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