How about both? You definitely want to use security keys when possible, because one-time passcodes from authenticator apps can be phished. How many security keys does one person need? Why Not an Authenticator App? Let’s address their top counter-arguments first! Now, when I do tell my friends to go buy a couple of security keys, I tend to get a bit of pushback. They can work cross-platform and can be used on any number of websites that support them. They are simple to understand, durable, and portable. Security keys are the strongest practical authenticators today. If at any point you find yourself confused with all the terminology, check out my article on making sense of the security alphabet soup. Today, I’m going to answer the question here! With dozens of security keys, authenticator apps, and password managers available, friends and customers often ask me what devices they should use (although, to be honest, they should be asking me a lot more!). Everyone agrees that we should protect ourselves better online. Strong authentication is gaining traction with both consumers and corporations.

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