With the advent of flexible workspaces, companies are increasingly adopting smartphone-based authentication to let employees enter and leave. In a recent poll, nearly two in five firms said they’re letting staff use their phones to access office buildings. The boon has benefited vendors like SwiftConnect, which sells a platform for managing access to physical offices. Chip Kruger and Matt Kopel founded the company in 2020 after selling their previous company, Waltz, to WeWork in 2019. Kopel said...