Apple Patches A Signal Leak - DTNS 5254

This episode of the Daily Tech News Show covers several major tech developments, starting with Apple's recent software update that patched a bug allowing deleted Signal notifications to persist in the device's cache for up to 30 days. The issue, originally reported by 404 Media and investigated by the FBI, raised privacy concerns, especially in sensitive scenarios like whistleblowing or authoritarian surveillance. Apple's fix, backported to iOS 18, has been praised by Signal's president Meredith Whitaker, though the episode emphasizes that users should still consider disabling message previews in notifications for added security. The discussion then shifts to the UK's National Cybersecurity Centre (NCSC) officially recommending passkeys over passwords, calling them more secure and urging companies to phase out password use. Despite the technical superiority of passkeys, the episode highlights the messy real-world rollout, with inconsistent implementations frustrating users and developers alike, and calls for better migration strategies. The show also explores a breakthrough in display technology from Pohang University and Samsung, which enables glasses-free 3D switching via a thin, voltage-controlled metasurface lens. Other highlights include CATL's new ultra-fast-charging LFP battery that charges from 10% to 98% in just 6.5 minutes, even in extreme cold, and the growing demand for DRAM and high-bandwidth memory impacting server production. The episode closes with a heartwarming story from listener Brandon in India, who uses AI-powered voice-to-text tools to streamline communication at his yoga retreat, showcasing the democratizing potential of AI when used thoughtfully.