Authentication means proving you are who you say you are. Think of it as the next step of identification. Let’s say I meet you at a conference and we introduce ourselves over a handshake – that’s identification. I then ask you to prove you are who you say you are by asking you to show me your government-issued photo ID – that’s authentication.
Multi-factor authentication means doing that more than one way. So, you log on to your banking account and your account sends you a text message with a code in it. To log on, you need to enter that code within a short time frame. That’s a way of making your account more secure. Let’s be clear here, that method doesn’t guarantee 100% security, but it does make it much harder to hack your account.
So, use MFA wherever it’s available. There are numerous MFA apps available, including from Microsoft and Google. In your workplace, switch to MFA as default.
Use MFA wherever possible