Two-Factor Authentication: Your Second Lock
Think of two-factor authentications as two locks on your front door. A robber needs both keys to get in. Even if they stole one key, they would still be stuck outside, and can’t steal anything. That’s basically what two-factor authentication is, and it’s one of the strongest and most important things you can add to your accounts. Below, learn what two-factor authentication is, the different types, and more.
What two-factor authentication means
Most logins ask for only one thing: your password. That’s onefactor. Two-factor authentication(2FA for short) asks for a second thing other than your password. Some examples are something like a code sent to your phone, or maybe a code from an app, or it could be a tap on a device you have.
Two-factor authentication is really simple.One factor is your password, something you know. The second factor is something you have, like your phone or device. A hacker might steal your password, but stealing what you physically hold is way harder.
Why a password alone is not enough
Passwords can be leaked. They get stolen in breaches, guessed, or hacked through phishing. When that happens, a hacker can easily get into your accounts with your passwords.
With 2FA turned on, a stolen password is not enoufh. The hacker types your password into the website, but then the website asks for the second code, which only appears on your phone. They don’t have your phone, so they are stopped and can’t do anything else. Your leaked password becomes way less dangerous. So, even if a hacker has your password, your accounts will still be okay.
The types of second factors
Some second factors are not as strong as others:
- Text message codes: A code is texted to your phone. This is common and better than nothing, but text messages can sometimes be seen or hacked by hackers.
- Authenticator apps: An app on your phone makes a new code every 30 seconds. This is safer than getting a text message code because the codes never go over the phone network.
- Security keys: A small, physical device you plug in or tap. This is the strongest one and is very hard to fool, even by phishing.
Authenticator apps are the best for most people, because authenticator apps are strong and easy to use.
Turn it on where it counts
You do not have to add 2FA to every single account at once. Add 2FA to your accounts that are the most important:
- Your email, because it can reset everything else
- Your bank and financial accounts
- Your primary account logins, like Google or Apple
- Social media, which can be used to trick your contacts
Most services have a security settings page where you can turn on 2FA in a fewminutes. 2FA is definitely worth it: 2FA is easy to set up and really strong too.
How this fits with a password manager
A password manager and 2FA work together really well. The password manager gives every account you have a strong, unique password, so your first lock is solid. Then 2FA adds the second lock on top. Together, they make your accounts really hard for hackers to hack into.
Some password managers can even store your 2FA codes, but many people like to keep your 2FA codes in a different app for an extra layer of separation. Either way, the goal is the same: never only just use a password by itself.
With HatePassword securing your passwords in an encrypted vault, and 2FA guarding the accounts that matter, a hacker who steals one factor still can’t hack you. Two locks are much better than one, and adding two-factor authentication is one of the easiest, good security things you can do.