Cutting the Cord (Tablo Connect to stream OTA TV over the Internet), Blockchain explained (from Bitcoin to Ethereum, useful applications), KRACK Wi-Fi vulnerability explained (MAC address filtering not a fix), securing your PC after intrusion, Profiles in IT (Andrew Houston, co-founder and CEO of Dropbox), Intel chip security flaws (Meltdown and Spectre, caused by speculative execution, apply patches quickly), 2018 online sales soar (Amazon cannot be stopped), Twitter has become infamous (from realDonaldTrump to MeToo), and Website of the Week (Google Trends for 2017, search word revelations). This show originally aired on Saturday, January 6, 2018, at 9:00 AM EST on WFED (1500 AM).