What is Two-Factor Authentication
You might have noticed that some of your online accounts require a PIN number for logging in, in addition to your username and password, and wondered why that is the case. Or you might have pondered why you need to enter your PIN code after you have inserted your credit card into an ATM machine before you can withdraw your money. Such redundant verifications are the applications of an emerging security technique in the world of cybersecurity known as Two F
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