Google Sheets lets you create and edit spreadsheets stored on your Google Drive. Turn on Applets to monitor specific cells in your spreadsheets as well create news docs, rows, and cell updates.

The United States Computer Emergency Response Team is part of the US Department of Homeland Security tasked with responding to major computer security incidents, analyzing threats, and exchanging critical cyber-security information with trusted partners around the world. This service will let you stay up-to-date with new alerts from US-CERT.