Erik and Bob take your questions. Amid controversy, Apple admits slowing performance of older iPhones when the battery gets old. Iced tea company sees stock skyrocket after including the word "Blockchain" in its name. A listener wonders if a laptop could be slowed down in a similar manner as the iPhone when it gets old. US officially blames North Korea for the WannaCry cyberattack. Electric car maker Tesla says vehicles used for commercial purposes are unwelcome at its charging stations. We give advice to a listener on how to activate Windows Defender for Windows 8, plus information on setting up the OpenDNS service to surf the web with more safety. The battery questions continue when a listener asks if it it is best to let a battery discharge completely before charging it again. Erik talks about Google's Project Fi, an alternative cell phone service that might save money on your cell phone bill. Wearable technology is making a comeback after a market slump.