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OpenAI’s Chronicle feature lets Codex read your screen, raising privacy concerns

ID: b3139b95-f37a-5fa7-a877-b654b0db1e94

STIX ID: report--b3139b95-f37a-5fa7-a877-b654b0db1e94

Feed Name: Help Net Security

Date Published: 2026-04-21

Date Updated: 2026-04-28

Author: Anamarija Pogorelec

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OpenAI's Chronicle is an opt-in Codex feature that captures recent screen activity to build local contextual "memories" for the Codex assistant; it runs sandboxed background agents, temporarily stores screen captures, processes selected frames through ephemeral Codex sessions (including OCR), and saves resulting memories as local unencrypted markdown files. The write-up highlights privacy and security considerations — Chronicle can be paused for sensitive content, requires Screen Recording and Accessibility permissions, may increase exposure to prompt-injection attacks and rate limits, and OpenAI states captures are not retained on its servers after processing unless required by law.

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