yego.me
💡 Stop wasting time. Read Youtube instead of watch. Download Chrome Extension

How adding your phone number and 2-factor authentication helps protect your account


2m read
·Nov 10, 2024

  • All right, Guemmy, so sometimes sites ask for, like, a phone number for security purposes, and I'm always actually afraid to give my phone number. One, I just don't want random people calling me all the time. But how do you think about that? When is it valuable or maybe not so valuable?

  • Yeah, it's actually super important that when a site asks you for a security phone number that you provide it. I think most people would agree that they wouldn't hesitate to give their credit card company their phone number, because in the case of fraud, you do want them to contact you and to verify those charges so that, you know, you're not responsible for them, et cetera. In the same way, providing your phone number to these online companies gives a way for the companies to contact you in case that there's issues. In addition to that, the phone number itself is actually a security mechanism. So, for example, a lot of us on banking services, we've tried to log in and then the banking service would send us an SMS code sent to your mobile phone number, and then you're able to enter that before you're even able to log in. And what that does is it actually prevents that fraud from even happening. And so instead of just the bank calling you because there's fraud, it's like, hey, let's prevent the fraud in the first place.

  • I have to say, that last point is very important. Like people think this is all theoretical. I, on not every day, that would really freak me out, but you know, several times in the past year, I get a little code like, you know, so and so was trying to log in to your account and there's a code. I'm like, "Oh, no!" Somehow, maybe someone broke in, or they're creating a new, I don't know what's going on, but the fact that I take comfort that they didn't get the code, that I got the code, and they wouldn't be able to log in. And that kind of goes into, you know, is that what we're talking about when we're talking about two-factor authentication? That you have to have, you know, kind of two devices that, you know, say a hacker in a foreign country or a bad actor might not have access to?

  • Yes, absolutely. You're right that because that code was only sent to your phone number, it was not sent to that attacker. And so they cannot get in. They're stopped at that point. And also, if people don't like phone numbers, there's lots of different ways that you can do two-factor authentication. We can send prompts to your device. There's these things called security keys, some people might have heard of. There's a big variety.

More Articles

View All
Warren Buffett's Timeless Investing Wisdom – 1988 Interview
To meet the wizard of Omaha, Warren Buffett, next on Adam Smith’s Money World. He doesn’t generally do interviews, but I called on him recently to get some of the wisdom and apherisms of Warren Buffett on the record. It is characteristic of Warren that he…
LearnStorm Growth Mindset: Khan Academy's science content creator on learning strategies
I’m Yuki, and I work as the science content manager. I work on the videos, exercises, and articles in our sciences—so biology, chemistry, and physics. “Failure is growth,” I think, is a motto I’ve seen upstairs. But yeah, for me, growth mindset is really …
Real Estate Investing: The 3 WAYS to make money owning Real Estate
What’s up you guys? It’s Graham here. So I thought this would be a helpful video to discuss the three ways you make money when owning and investing in real estate, and exactly how I calculate and assess my returns based off real-world examples. Because v…
Credit Cards 101: How to build your credit score ASAP and leverage your money
What’s up you guys? It’s Graham here. So this is probably one of the most important videos I’ve made so far, and it’s how to get a good credit score. Now I have a bit of a confession to make: I’m a bit of a nerd when it comes to credit cards. So I’m goin…
2015 AP Calculus BC 5b | AP Calculus BC solved exams | AP Calculus BC | Khan Academy
Let k equal four so that f of x is equal to one over x squared minus four x. Determine whether f has a relative minimum, a relative maximum, or neither at x equals two. Justify your answer. All right, well, if f of x is equal to this, then f prime of x. …
15 Things To Do If You Get Rich All Of A Sudden
Although it is incredibly rare, sometimes it happens that people get a massive influx of capital. The most common way is by inheriting a fortune from a deceased relative. The others are often different forms of gambling, like winning the lottery or someth…