Security systems are organized differently in different services. But in some ways they may coincide.
The first line of security is, of course, the password. Few services accept passwords shorter than 8 characters for registration. Almost all have complexity requirements:
Numbers and letters must be used.
At least one letter must be in a different case.
It is even better if special characters (hyphens, percentages, brackets, etc.) are used inside.
The same Mail.ru went further, it automatically offers two-factor authentication and has the ability to connect hardware keys.
Never use weak (hack-resistant) passwords.
The second line of defense is the so-called second security factor. Almost all email services now ask you to provide your phone number when registering. This is not done to send spam, but to give you an adequate opportunity to safely and easily reset your password if you forget it.
Plus, the same phone can be used for one-time short codes, which allow you to understand with a high probability that the person who entered your password and login on a new device during authorization bolivia phone number data is definitely related to you. Without entering the code, he will not be able to authorize, even if he knows the password.
Just in case! Be sure to make sure that your SMS messages are not visible in the notifications on your smartphone's lock screen.
Some services can support authorization with hardware security keys. Another promising and convenient technology. By the way, the second factor can be the same smartphone - with the use of Face ID or a fingerprint scanner.
What can be recommended to prevent your email accounts from being hacked:
Do not store your passwords in plain text in public places (on a piece of paper on your monitor, in a notepad, in a text file on your desktop, etc.). It is better to use special password managers.
Use two-factor authentication. One-time codes block 99% of attempts by intruders to log in using your login and password.
Change your password periodically, as sometimes even large and well-protected email services experience user data leaks.
Do not enter your password on suspicious sites. This is the so-called phishing, when under the guise of an official site you are offered to share your password yourself in a form completely controlled by the attacker.
Do not enter your password in front of strangers, especially in public places. They can easily remember or record your login and password on video.
Be careful when logging into services on public Wi-Fi networks. Yes, passwords can be intercepted while they are being transmitted on a local network. This is called sniffing. In such networks, traffic should be “closed” from prying eyes, for example, by using a VPN.