An interstitial page is not encryption

If you connect to a hotspot and the operating system on your machine requires a password for that to work, that s not an open Wi Fi hotspot, and you re probably OK. If on the other hand you can connect, and when you fire up your browser it first takes you to a web page that says andenter a passwordand (as in a hotel) or andcheck to accept our termsand (as in most other open hotspots) that is not encrypted, it s not secure; it is an open Wi Fi hotspot.