{"data":{"id":"a57600d1-e818-4f68-81ce-96803fa98631","title":"ChatGPT search now uses the site:operator at scale","summary":"ChatGPT's search feature began using the site: operator (a command that limits search results to a specific website) much more frequently after the GPT-5.6 update in early August 2026, jumping from 0.3-0.5% to 16-17% of queries. OpenAI announced this change was meant to make ChatGPT more reliable with facts and provide more focused answers, though the exact implementation details remain unclear because OpenAI keeps its system prompts (the instructions that guide an AI's behavior) hidden from the public.","solution":"N/A -- no mitigation discussed in source.","labels":["industry"],"sourceUrl":"https://simonwillison.net/2026/Aug/20/chatgpt-search-now-uses-the-siteoperator-at-scale/","publishedAt":"2026-08-20T23:57:32.000Z","cveId":null,"cweIds":null,"cvssScore":null,"cvssSeverity":null,"severity":"info","attackType":[],"issueType":"news","affectedPackages":null,"affectedVendors":["OpenAI"],"affectedVendorsRaw":["OpenAI","ChatGPT","Claude","Gemini","GPT-5.6"],"classifierModel":"claude-haiku-4-5-20251001","classifierPromptVersion":"v3","cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":null,"epssScore":null,"patchAvailable":null,"disclosureDate":"2026-08-20T23:57:32.000Z","capecIds":null,"crossRefCount":0,"attackSophistication":"moderate","impactType":null,"aiComponentTargeted":"api","llmSpecific":true,"classifierConfidence":0.85,"researchCategory":null,"atlasIds":null}}