DUO

☀☀☀☀ DUO is here to secure access to your accounts. It relies on two-factor authentication, but unlike other security apps, it only needs a single tap on your smartphone to authenticate. You can configure the app to work with any application on any device, yet it can be a little tricky. The free version is geared toward personal use. Businesses will pay to use it to its full extent. The only downside: authenticating every single sign in is tedious. — Cat Supawit

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