[Adam Torman] The Salesforce App Cloud platform has important auditing capabilities built in to ensure that you can focus on what’s most important: your business. One of these foundational audit tools is Login History. The Login History audit trail enables administrators to download the last six months of logins to the Force.com platform, either via a CSV download link in the setup user interface or via the API. With Login History, you can track login successes and failures by user, IP, application, API, or browser to name a few key attributes. In addition, Event Monitoring provides access to the Login log lines as well. As you can tell, we consider Login an important event to keep track of! – Learn more at Salesforce Hacker