Many Internet browsers retain the logins used when entering various sites, including social networks. When you use a personal computer, this is convenient, since there is no need to enter data again. But if you use a foreign device, then I would not want to leave my username or even password in a special form, because it will be unpleasant if other people use it for personal purposes. Therefore, it is necessary to remove all the data and solve the problem of how to delete the login when entering the "Contact".
How not to leave your data on other people's devices

The problem is always easier to warn that correct already done. Therefore, it is best to use the capabilities of the VKontakte site so that it does not allow you to remember your data at the entrance. To do this, it is necessary to put a marker at the phrase “Alien Computer” below the login form. So you can protect yourself. Use this opportunity on all other PCs, for example, in an Internet cafe or with friends and relatives, then the question of how to delete the login when entering the “Contact” will not be relevant for you.
Some browsers request that the password be saved after entering the page, and many users automatically accept the offer from the program, instead of clicking "no" and closing the pop-up window or toolbar.
Another way not to leave your data is to work in a window in the “Incognito” mode. This feature exists for all programs based on Google’s Chrome. In this mode, cookies are not recorded, which are precisely responsible for the storage of your data.
All ingenious is simple
Perhaps the easiest and often effective way is how to delete the login when entering “Contact”, which works on all programs for browsing the Internet - calling a drop-down list and clearing the Delete button with unnecessary data.
To call the drop-down menu, you just need to click in the small window (where the login page of the "Contact" page is entered) with a left mouse button. In almost all cases, this procedure is enough to remove data from the program memory for the space of web pages. If you were unable to cope with this problem with the usual uninstall, then try using the other features described below.
How to delete cookies
If you still have a problem - how to delete the login when entering the “Contact”, then the first remedy for the information you do not need is clearing cookies. This is suitable for all browsers, and in many cases this procedure is sufficient.
To do this, you can use the tools of the browser itself - to clear the history and cache through the settings. Or install a special program, for example, Cleaner. In the main window, it is necessary to set markers on the necessary files (by default there is already a cookie) and analyze. Then press the "Clear" button, and all data will be deleted.
Cleaning AutoFill Forms
A radical way that will erase all passwords is to clear the autofill data in the browser settings. Some programs prevent the user from choosing which passwords and logins to delete, and they clear everything. Therefore, if you are using someone else’s PC in which the user has already saved the necessary information, then you should not use this method - how to delete “Vkontakte” logins.
If you did not find such a button in the main settings, then use the additional ones. For example, in the aforementioned browser from Google, this function is located in the column for deleting browsing history, and there you only need to put a marker in the desired line.
Is it possible to hack Vkontakte using the login

There are at least 5 different ways to crack a “Contact”, knowing the login. The easiest one is password guessing. People usually use the same symbols in all mail services, games and other places where authorization is needed. Even the fact that gaining access to a personal page on a social network is a criminal offense does not stop many. In this case, the confidentiality of correspondence is violated and liability for unauthorized access to personal information occurs.
Those who enter the network from other people's computers are at a certain risk group. First of all, because cookies remain in the device’s memory, from which you can easily extract the necessary information. Knowing part of the login form will facilitate the task for the hacker.
It is more difficult to do if a mobile number is used as a login, but it is usually used for other purposes, for example, send various SMS and MMS, which activate subscriptions to various services.
These are just some of the ways to crack a “Contact”, knowing the login. They exist much more, because every day hackers improve, special programs are released that can open your page in a matter of seconds. And in the best case, your correspondence will simply be viewed by another person, which, of course, is unpleasant, and in the worst, you completely lose control of your account.