Cybersecurity Companies\u2019 Stocks Fall as Anthropic Tests Powerful New Model
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Cybersecurity stocks declined sharply on Friday following revelations that Anthropic has begun testing \u201cMythos,\u201d an extraordinarily powerful new AI model<\/a> with advanced vulnerability-discovery capabilities.<\/p>\n Anthropic is actively trialing a new tier of artificial intelligence models codenamed \u201cCapybara,\u201d with the flagship model operating under the moniker \u201cMythos\u201d.<\/p>\n Internal documents indicate that Mythos significantly outperforms the company\u2019s previously most advanced model, Claude Opus 4.6, in academic reasoning, software coding, and cybersecurity benchmarks.<\/p>\n Characterized by Anthropic as a \u201cstep change\u201d in performance, the model is currently restricted to a highly vetted group of early-access customers.<\/p>\n The company has deliberately paced its release due to the unprecedented nature of the model\u2019s technical proficiencies and its capacity to surface complex code flaws.<\/p>\n The financial markets reacted swiftly to the news, driven by renewed anxieties that advanced AI software tools will aggressively compete with industry incumbents.<\/p>\n The Global X Cybersecurity ETF plummeted by 4.5% on Friday, establishing its lowest closing position since November 2023 and pushing its year-to-date decline beyond 21%. This sell-off reflects a growing market sentiment that autonomous AI agents may disrupt traditional enterprise security architectures.<\/p>\nMarket Impact and Equity Declines<\/strong><\/h2>\n