TRANSCRIPT · Scientists finally discover how a common gut bacterium can trigger colon cancer ## Scientists finally discover how a common gut bacterium can trigger colon cancer (ScienceDaily) https://www.sciencedaily.com/releases/2026/10/261031012912.htm GRANT BRICKMAN: Breaking: scientists find the missing step in how a common gut bacterium can drive colon cancer. GRANT BRICKMAN: Breaking news. Scientists say they have found the missing step in how a common gut bacterium can drive colon cancer. Now the full story. GRETA FOOTNOTE: Researchers at Johns Hopkins report in Nature that the toxin from Bacteroides fragilis needs a protein called claudin-4 to dock onto colon cells. GRANT BRICKMAN: So the toxin books a room before it causes damage. Like the hotel minibar. Nobody checks until it's too late. GRETA FOOTNOTE: Not really, Grant. But the order is right: it docks first, then the damage and inflammation follow. NOVA: Nova here, live from the micro lab! For nearly two decades, scientists knew the toxin helps drive tumors. They couldn't explain how it first attaches. NOVA: The answer is claudin-4, the essential docking point. A tiny lock and a tiny key, inside us. Cosmic perspective, people! NOVA: This is file footage of the lab. The team used the finding to build a molecular decoy that intercepts the toxin before it can harm colon cells. NOVA: In mice, the decoy protected against the toxin's harmful effects. The report calls it a possible new approach. Mice, not people, yet. GRETA FOOTNOTE: So: a possible new way to prevent bacterial damage linked to colorectal cancer. Promising, and still early. GRANT BRICKMAN: Remarkable. Greta, remind me never to dock anywhere without checking the toxin first. ## AI startup hacks Anthropic, gains access to employee details, internal messages (indiatoday.in) https://www.indiatoday.in/technology/news/story/ai-startup-hacks-anthropic-in-12-hours-gains-access-to-employee-details-and-internal-messages-3025452-2026-10-26 GRETA FOOTNOTE: A cybersecurity startup got into Anthropic's systems in under 12 hours, during a test. GRANT BRICKMAN: Now the full story. An AI startup says it broke into Anthropic, and I would like Greta to tell us, slowly, for everyone at home, how bad that is. GRETA FOOTNOTE: It happened during a security test. Cathedral, a cybersecurity startup, got into sensitive systems in under 12 hours. Vera has the picture. DR. VERA VECTOR: The setup: Cathedral used AI agents to find weaknesses in business software Anthropic uses for admin and sales. The Washington Post reviewed a draft report. DR. VERA VECTOR: Exposed, per the article: employee details, salary details, job offers and internal messages about its advanced AI models. GRANT BRICKMAN: Vera, so one AI broke into another AI? I thought they all lived together. DR. VERA VECTOR: Not quite. Cathedral is a startup. According to the background note, Anthropic is a San Francisco public benefit corporation planning an IPO in November 2026. AXIOM: Thank you for the question! Anthropic confirmed a limited set of sales, HR and IT systems. Customer chats, model responses and source code were not reached. GRETA FOOTNOTE: And what is still unanswered, Vera? DR. VERA VECTOR: Two things. It is a draft report, so final findings are not out. And the article doesn't say which business software was weak. DR. VERA VECTOR: It also says nothing about who else is affected beyond what Anthropic confirmed. A question to watch, not a conclusion. GRETA FOOTNOTE: Thanks, Vera. A draft report, a limited set of systems, and a final version still to come. ## Pixels in Brief (PXL) GRANT BRICKMAN: Quick round: a surprise Derry episode, PDF readers and Pikmin Day. GRETA FOOTNOTE: Quick round. It: Welcome to Derry dropped a surprise Halloween episode on HBO Max. Lights on, please. GRETA FOOTNOTE: Engadget explains what a PDF reader is and whether your phone needs one. Scroll gently. GRETA FOOTNOTE: Nintendo shadow-dropped a Direct for Pikmin Day, the first of November. Three ones, three Pikmin. ## [AD · fictional product] Layoverine DR. VERA VECTOR: Do you feel uneasy about leaving the house? Ask your travel agent whether Layoverine is right for you. DR. VERA VECTOR: Layoverine helps you enjoy the middle seat, the connecting gate and the long walk to a gate that just changed. DIRECTOR MARGE: Side effects: love of airport carpet, loyalty to one neck pillow, buying a snow globe in July, announcing boarding to strangers. Do not take with luggage. AI-written satire. The text of the news items comes from the linked articles.