Google is concerned about the safety of user data, and the popular Chrome browser has several layers of protection. When you go to the site, it is analyzed by a firewall built into the browser, after which the user is shown the page content or an error.

One of the common errors that you may encounter when you go to a site through Google Chrome is the message: "Your connection is not secure." A similar error can occur when connecting to all sites through Google Chrome or to one. There are several ways to fix this problem, and we will consider them below.

Problems with the Google Chrome browser

If the Google Chrome browser reports that the user's connection is not secure, there is a high probability that the reason for this is incorrect settings or potentially dangerous extensions. To verify that the problems are related to the browser, you can start Google Chrome in Incognito mode and go to the problem site. To launch the browser in Incognito mode, click on the three dots in the upper right corner and select the appropriate item.

If you were able to access the site in Incognito mode, but the problem persists in normal mode, you can try the following.

On Windows:

On Android:

In most cases, the steps above will help you get rid of the message that the connection is not secure. If the problem persists, proceed to the next step in the instructions.

Incorrect time and date

When connecting to a site on the Internet, there may be a conflict between the browser and the server to which the request goes, due to different times. Usually computers set the time automatically based on information from the Internet. But if this option is disabled and the date and time on the computer are incorrectly set (possibly due to), an error about an unsecured connection may appear.

Please note: With the latest updates to Google Chrome, a separate error has been introduced that indicates a connection conflict due to incorrect system clock settings. However, if the browser has not been updated for a long time, a standard error about unsecured connection will occur.

Viruses and antiviruses

There is a possibility that access to a particular site is blocked by viruses that have entered your computer. To exclude this option, it is recommended to carry out standard viruses. In addition, it is necessary that there are no unnecessary entries in it.

Sometimes, on the contrary, antiviruses are the cause of the error "Your connection is not secure" in Google Chrome. This is most often due to the fact that they have https protocol protection or SSL scanning enabled. In such a situation, you need to go to the antivirus settings and disable the above options. If you can't find the options, try disabling your antivirus completely and going to the website to see if the issue is related to it.

When Firefox connects to a secure website (the URL begins with "http s: // "), it must verify that the certificate presented by the website is valid and that the encryption is strong enough to adequately protect your privacy. If the certificate cannot be validated or if the encryption is not strong enough, Firefox will stop the connection to the website and instead, show you an error page with the message, Your connection is not secure:

To troubleshoot connection issues that result in a Secure Connection Failed error page, see Troubleshoot the "Secure Connection Failed" error message.

What to do if you see this error?

If you encounter a "Your connection is not secure" error, you should contact the owners of the website, if possible, and inform them of the error. It is recommended that you wait for the website to be fixed before using it. The safest thing to do is to click Go Back, or to visit a different website. Unless you know and understand the technical reason why the website presented incorrect identification, and are willing to risk communicating over a connection that could be vulnerable to an eavesdropper, you should not proceed to the website.

Technical information

Click on Advanced for more information on why the connection is not secure. Some common errors are described below:

Certificate does not come from a trusted source

The certificate does not come from a trusted source.

Error code: MOZILLA_PKIX_ERROR_ADDITIONAL_POLICY_CONSTRAINT_FAILED

(date)

The certificate will not be valid until date (...)

Error code: SEC_ERROR_EXPIRED_ISSUER_CERTIFICATE

The certificate expired on (date)

The certificate expired on date (...)

Error code: SEC_ERROR_EXPIRED_CERTIFICATE

This error occurs when a website "s identity certification has expired.

The error text will also show the current date and time of your system. In case this is incorrect, set your system clock to today "s date and time (double-click the clock icon on the Windows Taskbar) in order to fix the problem. More details about this are available in the support article How to troubleshoot time related errors on secure websites.

The certificate is not trusted because the issuer certificate is unknown

Error code: SEC_ERROR_UNKNOWN_ISSUER

The certificate is not trusted because the issuer certificate is unknown.
The server might not be sending the appropriate intermediate certificates.
An additional root certificate may need to be imported.

Error code: MOZILLA_PKIX_ERROR_MITM_DETECTED

MOZILLA_PKIX_ERROR_MITM_DETECTED is a special case of the SEC_ERROR_UNKNOWN_ISSUER error code when a man-in-the-middle attack is detected.

You may have enabled SSL scanning in your security software such as Avast, Bitdefender, ESET or Kaspersky. Try to disable this option. More details are available in the support article.

You may also see this error message on major sites like Google, Facebook, YouTube and others on Windows in user accounts protected by Microsoft family settings. To turn these settings off for a particular user, see the Microsoft support article How do I turn off family features? ...

The certificate is not trusted because it is self-signed

The certificate is not trusted because it is self-signed.

Error code: ERROR_SELF_SIGNED_CERT

Self-signed certificates make your data safe from eavesdroppers, but say nothing about who the recipient of the data is. This is common for intranet websites that aren "t available publicly and you may bypass the warning for such sites. More details are available in the support article How to troubleshoot security error codes on secure websites.

The certificate is only valid for (site name)

example. com uses an invalid security certificate.

The certificate is only valid for the following names: www.example. com, * .example. com

Error code: SSL_ERROR_BAD_CERT_DOMAIN

This error is telling you that the identification sent to you by the site is actually for another site. While anything you send would be safe from eavesdroppers, the recipient may not be who you think it is.

A common situation is when the certificate is actually for a different part of the same site. For example, you may have visited https://example.com, but the certificate is for https: // www.example.com. In this case, if you access https: // www.example.com directly, you should not receive the warning.

Corrupted certificate store

You may also see certificate error messages when the file in your profile folder that stores your certificates ( cert8.dbcert9.db) has become corrupted. Try to delete this file while Firefox is closed to regenerate it:

Note: You should only perform these steps as a last resort, after all other troubleshooting steps have failed.

When your connection is not secured in Chrome, what can you do and should you continue to be on the page that generates this error? Maybe scammers are really trying to gain access to your data or infect your computer with viruses?

What is the problem with?

Connection security is determined using a special certificate SSL... Most often, such certificates are provided by Google, but there is no monopoly in this market. Problems with the certificate itself are extremely rare, most often the reason is the data mismatch - from your device and received from a remote computer.

This message is the first alarm bell, notifying you that your software is too outdated. Some people like old and stable versions, others prefer not to install updates until they have been tested by millions of users for a couple of months.

Mistrust and conservatism lead to sudden turns, one day you find that your version of the operating system does not support new features and capabilities that others are successfully using. XP is no longer supported, but this version is still popular with users. Mainly among those who do not really want to deal with new options or are just used to it.

How do I secure the connection to the site?

Other's the problem occurs after changing the antivirus... Or the first installation. It happens that for several years a person has not enjoyed any protection:

I did not climb on dubious sites.
Didn't store important information on the computer.
I did not install unlicensed programs.
In general, I did not download anything suspicious from the network.

In theory, no protection is needed, but in fact, you can "catch" the virus from a completely ordinary city forum, if someone had already hacked it before. So it turns out that after the first bad experience, the user decides to get an antivirus, preferably paid and of high quality. And after a couple of minutes after installation, I'm not happy about the situation, because each site gives an error about the security of the connection. It would seem logical, now we have a program to check the level of danger, and it notifies us about it. But we remember that the matter is in the certificates.

And when Google issues the same error, several questions may arise.

How can there be a problem with a security certificate from a company that issues them itself? It turns out that, again, it's not the site that is involved, but with our computer.

Problems with the set time and date.

And if you didn't install new programs for protection, or if you generally use some other operating system, but the problem still exists? Check the clock on your work device, they can go astray:

When installing software.
During system update.
When changing to winter and summer time.
Or synchronize time with network data.

The date can get lost in the same situations, but this problem is less often paid attention to. Sometimes, even noticing, they do not seek to quickly eliminate. Why, is it funnier? And at a certain moment it plays a cruel joke, because the date and time of the system are taken into account during the verification of certificates.

Your connection is not secure, how to fix it?

Now let's figure out how to fix the situation in Windows:

Update software version.
Configure the antivirus correctly.
Set the correct time and date.

Let's analyze our actions step by step:

We import certificates for safe work.

None of the suggested options helped? You can either fall into despair or on your own download the main certificates from the network and install them on the computer... Sometimes there may be failures with their recognition, most often after system updates.

Your best bet is to use a certificate called Equifax Secure Certificate Authority... You can download it from the official website or software, you can be 100% sure of the security of the data you receive.

After that there are two ways - installation directly into the system through the console and directories or integration into the browser.

It will be easier and faster second way :

Open up GoogleChrome and go to “ Settings».
Select " Additional settings».
At the very bottom there will be an option “ HTTPS /SSL».
Go to this menu and click on the " Certificate management».
In the contribution " Trusted Root Centers" need to import the previously downloaded certificate.

Don't want to do this manipulation for each browser separately? Then you have to work right away with the operating system certification center. You can call it with one simple command - certmgr.msc ... In any case, in the "seven".

The command must be written in the console, which can be opened via start or by a combination Win + R.

In 999 cases out of 1000, the problem has nothing to do with your safety. But if you are too serious about your security, you can check the site against databases of questionable or malicious pages.

When you are sure that the site is safe, you can accept the certificate in a few clicks, click "next" and sit quietly on the site.

If such a notification appears every time you visit the site, even after you have accepted the security certificate, it is worth asking for help to your provider - the one who provides you with the Internet access service.

Usually, the data about your choice is saved, and you don't have to see the message and press the already remembered sequence of buttons every time. Google also has a support service, you should contact it if the provider referred to problems with the browser settings.

When your connection is not secured in Chrome, it's best to decide what to do right away. The problem can be corrected by itself only if the reason is in the out of order time settings. Any problems associated with visiting sites cause discomfort, but another device with access to the network and a couple of minutes in a search engine will help you find a way out of the situation.

Video tutorial - how to fix a mistake

There is a situation when, when trying to access a desired resource, for example, from a search engine, the Google Chrome browser displays a notification like “Your connection is not secure. Attackers may be trying to steal your data from the website. " This error has many sources and, accordingly, many solutions.

Why the connection is not secure

The fact is that the resource you wanted to access uses the secure HTTPS protocol - an add-on over HTTP. HTTPS encrypts data sent to the server so that it cannot be stolen. For HTTPS to work, certain conditions are necessary, non-compliance with which leads to errors. The range of possible reasons for the appearance of notifications is very wide: from an incorrectly set date required for the correct operation of HTTPS to blocking the connection by an antivirus.

You can see if HTTPS is being used by clicking on the icon to the left of the site address. If there is a lock icon and the word "Protected", then the resource transmits traffic via the HTTPS protocol, for example, one of the most popular social networks - "Vkontakte".

Reason 1: wrong date

The error code in this case is NET :: ERR_CERT_DATE_INVALID.
If the date on your computer does not correspond to reality, then you need to correct it.

Let's see how this is done.

1. Click on the date in the notification area (bottom right) and click "Change time and date settings"

1. Please select "Change date and time".

1. Adjust the current date and press "OK".

If after each reboot the date in the system changes, then it is quite possible that the battery in the motherboard is out of order!

Reason 2: unverified certificate

In this case, the error code is NET :: ERR_CERT_WEAK_SIGNATURE_ALGORITHM.
Not all sites that use HTTPS are certified by trusted publishers or use modern encryption algorithms. Some people use free versions of certificates, which are often recognized by chrome as "unwanted". To go to the "unsafe" site (at your own peril and risk), you must click on "Additional".

Be careful when navigating to such sites, the content there may be unsafe!

Reason 3: blocking by antivirus

If you have an antivirus installed, it can block a site with potentially dangerous content. This is how it works in NOD32.

In order to temporarily bypass the blocking, you need to disable the antivirus. This is done as follows: right-click on the antivirus icon, and select the item "Temporarily disable protection"then press "Yes", specify the shutdown period and click "OK".

Reason 4: blocking extensions

If you have extensions installed, then some of them may block access to the site, for example, "Kaspersky Protection". In order to find out who is blocking access, it is necessary to disable the extensions one by one by trial and error and thereby determine the "culprit".

Click on the ellipsis in the upper right corner of the browser, hover the mouse over "Additional tools" and select "Extensions".

After that, try disabling extensions (by clicking on the checkmark next to "Included") one by one and refresh the blocked page.

Reason 5: missing updates

Check the Service Pack (SP) version of your system. To do this, right-click on "My computer" in the dropdown menu select "Properties" and see what SP you have installed. HTTPS needs the latest service pack for XP and Server 2003 systems.

If you have Windows XP installed, you need SP3.

Download Windows XP SP3

If you have Windows Server 2003 installed, you must have SP2.

Download SP3 for Windows Server 2003

Reason 6: incorrect browser operation

If none of the above solutions worked for you, then as a radical method, you can uninstall and reinstall the browser. To do this, you need:

1. Press "Start", choose "Control Panel".

1. Click on "Removing a program".

1. Find the line with the browser from Google and double click "Delete".

1. Now it remains to download and install the browser again.

Download Google Chrome browser

Conclusion

In this article, we have analyzed many sources of the notification "Your connection is not secure. Attackers may be trying to steal your data from the website." The solutions described in our article will help you deal with this error in most cases. However, if all the same, none of the solutions helped - create a new branch with a description of your error on google products official website.