It has been said many times that browsers are the main tool for working on the Internet. And it has also been repeated many times that today there is a fairly large number. Some browsers are very popular, and some are very mediocre. You can safely add a browser like . to the list of popular browsers. Today we will look at a very common error that occurs in this browser.

Imagine this situation. You regularly use the Google Chrome browser and everything works fine. But at one random moment, when going to some site, the site page does not load, but instead an error appears. Instead of the website you are used to, you will see the following text in your browser window: " Your connection is not secure". And under this entry there is another entry that says that attackers can steal your data.

How could such an error appear in the Google Chrome browser? In fact, there are several reasons for this. Let's look at them.

This kind of problem is related to site certificates. They may be from an unverified author or may be out of date. By the way, one of the reasons for the error “Your connection is not secure” is an incorrectly set date and time on your computer. Incorrect date and time affect certificates. For example, the expiration date of the certificates does not match the date on your computer.

The error “Your connection is not secure” may appear on some sites and this is quite normal. Since website certificates may indeed be unverified or outdated. But if an error of this nature appears on almost all sites that you open, then the situation here will be different. Here are some recommendations to help you resolve this error.

Very often, a similar error occurs in the Google Chrome browser installed on the Windows XP operating system. If you are in this case (and you have a 32-bit OS), then check for Service Pack 3 (SP3). If you have a 64-bit version of Windows XP, then you need to check Service Pack 2 (SP2). Both of these update packages can be downloaded from the official Microsoft website. It is located at microsoft.com.

The reason for the “Your connection is not secure” error may be your antivirus or one of the browser extensions. If the problem is related to your antivirus, then you need to disable the HTTPS protection or scanning function in it.

In order to check whether extensions are involved in this problem, you need to open the Google Chrome browser in incognito mode. First you need to disable all extensions in incognito mode. This is all done in the browser settings. Then everything is extremely simple: if the problem does not appear, then one of the extensions is to blame and, therefore, it must be removed.

Still, most often an error like “Your connection is not secure” appears when the time and date on your computer are set incorrectly. Therefore, before moving on to other ways to solve this problem, check the date and time on your computer.

Even in such a popular browser as Google Chrome, errors can occur. But any errors can be eliminated. An error like “Your connection is not secure” is proof of this.

The Google Chrome browser (immediately after its release in 2008) quickly became one of the most popular in the world. It replaced the then leader - Mozilla Firefox - due to its simplicity, loading speed and user-friendly interface. Users, according to statistical studies, began to switch to Chrome en masse, which is why this browser is now considered the most popular (after Internet Explorer, which, of course, is provided by default in the Windows operating system).

Security in Chrome

In addition to the fact that this browser is fast, convenient and intuitive, another advantage is the emphasis on security for the user.

For example, Chrome displays a warning to the user that the site he wants to visit belongs to a database of fraudulent or dangerous ones (if the network resource can really harm you). This is a very good feature because it allows you to block at least this way.

Another browser security mechanism is to verify the SSL certificate. This is a method of transmitting encrypted data, which is used by many sites that provide work with finances (and not only). If you visit a site with a fake certificate and the browser recognizes it, an SSL connection error will occur. Read this article for what to do in such cases and how to bypass the ban on visiting the site.

We will also try to give basic advice on how to secure your computer system.

SSL Certificate Verification

So, the encrypted connection that the site uses is verified by simply checking it against the generally established form for issuing certificates. During this procedure, the browser is able to recognize where the SSL is fake and where it is real. If any error is detected, the browser signals this by displaying a corresponding message on the screen. It looks like this: “Your connection is not secure” (Chrome). We'll tell you what to do if you see it below.

Possible errors

In general, the fact that the connection is not properly protected may indicate the possibility of loss of personal data, which is fraught with unpleasant consequences for the user. Therefore, the browser tries to protect the PC owner from such problems and blocks access to the site.

True, the real reason why the indicated (“Your connection is not secure”) problem occurs may be completely different circumstances. That is, when you see this message, do not be alarmed as if you have landed on some kind of pirated site that can hack your computer and steal your credit card access data. No, it is quite possible that the error lies elsewhere. We will consider the options further in the text.

SSL Software

Lack of software on your computer is one of the factors that determine why the message “Your connection is not secure” (Chrome) pops up. It’s not hard to guess what to do in this case - you just need to install updates.

On Windows 7 and later versions, such problems cannot arise due to outdated software. Those who work with Windows XP and Windows Server may encounter them.

The problem is solved as follows: install SP3 (for 32-bit XP) and SP (for Server 2003 and 64-bit XP) update packages. After that, restart your computer and go to the site where the error “Your connection is not secure” (Chrome) popped up. You will understand what to do next. Either the problem will go away, or you will realize that the problem is not actually due to updates. Then we go through the list of possible options further.

Check date and time

Another common problem that users face is that the date and time are set incorrectly. An SSL certificate running on the server side operates according to one time, while on the user’s PC, say, a completely different date is set. In this case, Chrome checks for a certificate that is either outdated or could not exist at that time. Actually, this is why this SSL connection error occurred in Google Chrome. It’s easy to figure out how to fix it yourself: just rewind the date and time on your computer so that they coincide with the current data. Again, there are two options: either the error will disappear, or its cause lies somewhere else.

A similar problem may arise when visiting a search engine. In particular, when the user has an incorrect date, they may see the following message: “Could not connect to the genuine site.” www.Google.com is certainly not a phishing or scam site. It's just all about the date on the PC - because of its irrelevance, Chrome gives an error, as if this is not the original site, but, perhaps, a copy of it. Move the date and time and the problem will disappear.

Server problem

Actually, in addition to the possible reasons already mentioned, there is also a completely logical one - the unreliability of the issued SSL certificate. Working with it, Google's Chrome browser (for which the security and privacy of user data is one of the main goals) checks the issuer of the certificate. If this is a fake connection, or the certificate is out of date, the user will obviously see the message mentioned above. Whether to trust him or not is up to the PC owner to decide.

In practice, a situation may arise when a site actually works with a fake certificate and transmits visitor data over an unsecured connection to third parties. Therefore, having noticed the inscription: “Your connection is not secure” (Chrome), what to do, decide for yourself - take a risk and click “Continue browsing” (this link opens after clicking on “More details”, so the user cannot click on it accidentally) ; or simply leave the unreliable site.

Threat to your computer

Of course, your browser (be it Google Chrome or any other product) is a certain tool that allows you to determine at a minimum level whether you can access a site or not. But, of course, you shouldn’t rely solely on it.

An additional solution that would ensure the security of your system could be installing an add-on from some well-known antivirus. For example, Kaspersky Internet Security. If you are looking for something less cumbersome, you can pay attention to some narrow extensions in the Chrome Store that allow you to identify phishing sites that attack the user, fraudulent or illegal resources.

In addition, active system protection should not be neglected. The solution may be one of the many antivirus products on the market, as well as some software that combats a specific type of vulnerability in your PC.

The list of modern tricks of scammers is so large that it is almost impossible to protect yourself from all of them. A computer owner must resort to several products. Of course, the Google Chrome browser, combined with its simplicity and speed, can become one of them.

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 .

Table of Contents

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.

Typically, the “Your connection is not secure” error appears in browsers built on the Chromium engine. That is, you can try to apply the following methods not only in Chrome, but also in Opera, Vivaldi, Yandex.Browser, Amigo, Sputnik and some others.

How to identify and eliminate the cause

1. Check which side the problem is on

First of all, you need to check the availability of the site, when you access it an error appears. This will make sure that the problem is really on your side. To do this, you can try to access this resource from another device or through a different connection.

You can also use whois services (for example, 2ip.ru), which allow you to check the availability of any website in your country for free. If a resource is blocked in Russia, then to access it you will need to resort to VPN services, special extensions or.

2. Set the system time

The latest versions of modern ones have already learned to recognize a system time failure, informing the user that the clock is behind or in a hurry. And yet, in cases with older PCs, it is a significant difference between the system and real time that can cause an error to appear about the insecurity of your connection.

In such a situation, the browser is limited by the validity period of the SSL certificate, which, if the time is incorrect, can be considered invalid. Accordingly, the connection via the HTTPS protocol is not secure, and it is recommended to block it, protecting the user from possible risk. The solution is to simply adjust the date and time on your device.

3. Fix browser problems

Before you start troubleshooting Chrome, update your operating system and the browser itself to the latest version. Only after this can you proceed to the next steps.

Check the impact of extensions

Disable all extensions to see if this is the problem. You can access extensions in Chrome through “More tools” in the settings. Disabling is carried out by simply switching the toggle switches.

If the error stops appearing, all that remains is to find the culprit. Enable the installed extensions one by one and check the availability of the problematic site after each one.

Clear cache and cookies

If disabling extensions does not help, you need to clean your browser as well. To do this, you can use the combination Ctrl + Shift + Del, which brings up the cache and temporary files menu, or access the same options through the settings.

To do this in Chrome, in the drop-down menu on the right, go to the “Additional tools” section and click on “Delete browsing data.” In the window that opens, select “Cookies and other site data” and “Images and other cached files.” Delete your data.

Restore your browser settings

A simple reset of your browser settings to default may also help. In desktop Chrome, this can be done in the advanced settings section by selecting “Restore default settings” at the very bottom of the page.

Reinstall your browser

Reinstalling your web browser and first uninstalling the old version may also solve the problem. In order not to start everything from scratch, do not forget to save the pages you need in your bookmarks.

4. Check the influence of your antivirus or firewall

Some antiviruses and firewalls have a built-in function to protect network connections using the HTTPS protocol. It may conflict with an identical browser function, resulting in an error. To check the impact of such programs, simply disable them and try opening the problematic site again. If this is successful, then in the anti-virus software you can add the desired site to the list of exceptions.

It is worth disabling or limiting the activity of the antivirus for the sake of one site only in cases where you are completely confident that there are no risks.

What to do if the cause cannot be eliminated

If none of the methods help solve the problem, you can access the site by stepping over the message about an unsecure connection. To do this, in the error window, you need to click on “Advanced” and then “Go to the site (unsafe)”, if such a link is available.

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 is the connection 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 required, failure to comply with which will result in errors. The range of possible reasons for the appearance of notifications is very wide: from an incorrectly set date, which is necessary for HTTPS to work correctly, to an antivirus blocking the connection.

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

Reason 1: wrong date

The error code in this case is NET::ERR_CERT_DATE_INVALID.
If the date on your computer is incorrect, you need to correct it.

Let's see how it's done.

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

1. 1. Select "Change date and time".

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

If after each reboot the date in your system changes, then it is quite possible that the battery in the motherboard has failed!

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 an “unsafe” site (at your own peril and risk), you must click on "Additional".

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

Reason 3: blocked by antivirus

If you have an antivirus installed, it may 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 your antivirus. This is done as follows: right-click on the antivirus icon and select "Temporarily disable protection", then click "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, you need to disable extensions one by one using trial and error and thereby determine the “culprit”.

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

After that, try disabling extensions (by clicking on the checkbox next to "Enabled") one at a time and update the blocked page.

Reason 5: Missing Updates

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

If you have Windows XP installed, you must have SP3.

Download SP3 for Windows XP

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

Download SP3 for Windows Server 2003

Reason 6: Browser not working properly

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

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

1. 1. Click on "Uninstall a program".

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

1. 1. Now all that remains is to download and install the browser again.

Download Google Chrome browser

Conclusion

In this article, we 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 none of the solutions helped, create a new thread describing your error on official website of Google products.