negativeSYS.SOURCE: The Hacker News• 2026-10-27T13:52:43+05:30

OpenAI Compaction Feature Exploit Enables Extraction of Encrypted Reasoning Data

#ai #vulnerability #security #encryption

OpenAI's compaction feature vulnerability allows extraction of encrypted reasoning data through text compression techniques. Security researchers demonstrated bypassing hidden reasoning protections by exploiting this flaw.

OpenAI's compaction feature, which shrinks a long conversation to save space, could be turned into a way to copy a model's hidden reasoning out in plain text, security firm Xint has shown.

OpenAI's reasoning models work through a problem before answering, and the service normally returns only the raw reasoning as an encrypted item the user cannot read. The method got past

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> AUSTRALIAN SIGNALS DIRECTORATE DISABLES AMADEY MALWARE BACKEND, DISCONNECTING 180,000 INFECTED DEVICES > OPENAI COMPACTION FEATURE EXPLOIT ENABLES EXTRACTION OF ENCRYPTED REASONING DATA > UNAUTHORIZED REMOTE ACCESS EXPLOITS P2P AND AUTHENTICATION FLAWS IN DAHUA IP CAMERAS ACROSS UKRAINE > X INTRODUCES POINTING HAND NUDGE FOR POST PROMOTION, SPARKS USER CONFUSION > UK INTRODUCES £925 ANNUAL LEVY ON UNIVERSITIES FOR INTERNATIONAL STUDENTS > ALLMODELS.IO LAUNCHES ABLITERATED MODEL ROUTER WITH 5 DEEPSEEK INFERENCE PROVIDERS > CISA ADDS PHP2SHELL VULNERABILITIES TO KEV CATALOG DUE TO ACTIVE EXPLOITATION > TEACHING OPENGL ES 3.0 IN MODERN GRAPHICS EDUCATION > OPENAI'S DOTS: TRANSFORMING CODING TOOLS INTO AN ALWAYS-ON PERSONAL ASSISTANT > PORTING 16-BIT WINDOWS EMULATION TO 64-BIT WINDOWS WITH WINEVDM> AUSTRALIAN SIGNALS DIRECTORATE DISABLES AMADEY MALWARE BACKEND, DISCONNECTING 180,000 INFECTED DEVICES > OPENAI COMPACTION FEATURE EXPLOIT ENABLES EXTRACTION OF ENCRYPTED REASONING DATA > UNAUTHORIZED REMOTE ACCESS EXPLOITS P2P AND AUTHENTICATION FLAWS IN DAHUA IP CAMERAS ACROSS UKRAINE > X INTRODUCES POINTING HAND NUDGE FOR POST PROMOTION, SPARKS USER CONFUSION > UK INTRODUCES £925 ANNUAL LEVY ON UNIVERSITIES FOR INTERNATIONAL STUDENTS > ALLMODELS.IO LAUNCHES ABLITERATED MODEL ROUTER WITH 5 DEEPSEEK INFERENCE PROVIDERS > CISA ADDS PHP2SHELL VULNERABILITIES TO KEV CATALOG DUE TO ACTIVE EXPLOITATION > TEACHING OPENGL ES 3.0 IN MODERN GRAPHICS EDUCATION > OPENAI'S DOTS: TRANSFORMING CODING TOOLS INTO AN ALWAYS-ON PERSONAL ASSISTANT > PORTING 16-BIT WINDOWS EMULATION TO 64-BIT WINDOWS WITH WINEVDM