Systems | Development | Analytics | API | Testing

If someone steals your password, they can pretend to be you. That's why many companies provide two-factor or multi-factor authentication via a fingerprint scan, a YubiKey, an authenticator app, or SMS. In this article, Petr Hlavicka will give you a solid foundation of knowledge about multi-factor authentication and will walk you through implementation with Rails, Webauthn, and Devise

In a recent webinar by TDWI, 45% of analysts reported that “every day seems to be a different fire drill.” No surprise to anyone in the industry. As much as analysts need to be focused on more strategic tasks, their skills are frequently deployed to answer basic questions. Greater self-service capabilities for end-users would no doubt alleviate these fire drills, but this is not yet a reality for the majority of companies.

Apart from being a synonym to a sandal, a ruby flip-flop refers to a system that comprises two alternating (on/off) states that one can switch between. This can be pretty helpful when you want to loop through arrays and capture contiguous subsets that lie between specific bounds (you’ll understand more of what I mean as you read along). However, not many programming languages have leveraged a mechanism like this.