A security key that doesn’t work well with all of your ... Some keys may have a physical button to press instead. You may be prompted to set a PIN for your key, so choose something memorable.

That's why multifactor authentication, like a hardware security key, is an important upgrade to your security. Deals are selected by the CNET Group commerce team, and may be unrelated to this article.

Google's extra layer of verification to the normal security key model offers a good defense against phishing attacks. But at $50, it's tough to not first look at more affordable options.