Researchers detail PixieFail, a set of nine vulnerabilities in UEFI firmware from five of the top suppliers that helps hackers infect devices with malware (Dan Goodin/Ars Technica)

WhatsApp updates Channels to add voice updates, polls, and additional admins  —  WhatsApp is upgrading its broadcasting feature Channels with new abilities such as voice updates, polls, and additional admins.  —  The company said Channel owners can now voice updates to followers.