The week I returned from Busan, a Busan bank was hacked by AI—An introduction to security in the AI era, starting with data roaming and free Wi-Fi

I wrote that I had 'come to understand how communication works.' A few days after returning home, I froze while watching the news.South Korea's five major banks were targeted simultaneously by the ...
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Best Free VPN for PC in 2026: Free Plans and 30-Day Refunds

Best VPN Free VPN Best Free VPN for PC in 2026: Free Plans and 30-Day Refunds A Windows PC or laptop uses data in the background, through updates, OneDrive sync, and game launchers. A free VPN with a ...
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Best VPN Service in 2026: 10 VPNs Ranked on Speed and Streaming

A fast VPN that Netflix blocks, or a private one too slow for 4K, solves only half the problem. To find the VPNs that manage both, we put 10 services through the same October round: a 190 Mbps ...