In cybersecurity news for October 23, 2025, the threat landscape is defined by escalating speed and systemic risk. A new report reveals ransomware groups are using automation to compress attack timelines to just 18 minutes from initial access to lateral movement. Simultaneously, another study highlights a dangerous overconfidence in supply chain security, with 94% of firms feeling prepared despite a third failing to conduct basic supplier risk assessments. This is underscored by the staggering £1.9 billion economic cost of the Jaguar Land Rover hack, which cascaded through 5,000 supply chain organizations. Regulators are responding, with New York's DFS issuing new guidance on third-party risk. Meanwhile, CISA has added another actively exploited vulnerability to its KEV catalog, demanding immediate action from federal agencies.
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