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2-factor authentication, known as 2fa for short, is an additional layer of security verification that can help prevent hackers from breaking through your account and mess with it. And yet, many people still don't use this feature, thus hacking commonly occurred because of bad or very predictable password combination. Google says that they will soon make 2fa mandatory. It is still unknown if this change will affect the whole globe at once or just in a certain region first.
