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AdGuard for Windows
AdGuard
for Windows
The most advanced ad blocker that works in all browsers
Reviews 18140 Excellent
By downloading the program you accept the terms of the License agreement
AdGuard for Mac
AdGuard
for Mac
The most advanced ad blocker that works in all browsers
Reviews 18140 Excellent
By downloading the program you accept the terms of the License agreement
AdGuard for Android
AdGuard
for Android
А unique no-root ad blocker for Android
Reviews 18140 Excellent
By downloading the program you accept the terms of the License agreement
AdGuard for iOS
AdGuard
for iOS
The best iOS ad blocker for Safari
Reviews 18140 Excellent
By downloading the program you accept the terms of the License agreement

AdGuard Security Notice

We have detected an attack towards AdGuard servers. The most important thing is: AdGuard servers were not compromised. Malefactors used existing databases of email/password pairs previously leaked by different companies. We believe that attackers were able to access some of the accounts, but only few of them which owners used the same compromised email/password pair. If you are not one of them, your personal data was not leaked. We made a desicion to reset all users' passwords anyway, mostly as a preventive measure.

What happened?

  1. Today we detected continuous attempts to login to AdGuard accounts from suspicious IP addresses which belong to various servers across the globe.
  2. These attempts were stopped by a rate limiter which is an obvious measure against bruteforcing users' passwords.
  3. However, rate limiting is not enough when attacker already knows what password to use. Unfortunately, this seems to be the case. The pairs of email/password used by intruders belong to known databases of leaked accounts.

Where do these leaked databases come from? There were numerous data breaches where data is inadvertently exposed in a vulnerable system, usually due to insufficient access controls or security weaknesses in the software. Some notable examples are breaches of Yahoo, Adobe, VK and many more.

What we did to protect you

  1. As a precautionary measure, we have reset passwords to all AdGuard accounts.
  2. We have now set stricter requirements for AdGuard account passwords.
  3. We have connected to HaveIBeenPwned API — a website that collects data about all known compromised passwords. If the password that you are entering is found in the database of leaked ones, you will see a warning.

Is your account compromised?

We don't know what accounts exactly were accessed by the attackers. All passwords stored in AdGuard database are encrypted so we cannot check whether any of them is present in the known leaked database. That's why we decided to reset passwords of all users.

Just in case, you can check out haveibeenpwned.com and see for yourself if your data was leaked in any of the known data breaches.

Note that your license keys are safe as long as they are binded to devices that you use them on, and nothing bad can happen to these keys. You can continue to manage them via your personal account.

Got it, what shall I do?

You need to set a new password. As we said, we have reset passwords of all users, therefore, to regain access to your account, you need to click on this link and follow the instructions to create a new password. The overall number of compromised accounts is no more than a couple hundreds.

We apologize for the inconvenience, but you know that we care about our users and their data privacy and had to promptly take action. Thank you for understanding!

Future measures

After this accident we strongly considered introducing the two-factor authentication. We physically can't implement it in one day, but this will be our next step and we will let you know about it as soon as its done.

UPD: the introduction text has been modified to better convey the meaning of the article

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AdGuard
for Windows

AdGuard for Windows is more than an ad blocker. It is a multipurpose tool that blocks ads, controls access to dangerous sites, speeds up page loading, and protects children from inappropriate content.
User Reviews: 18140
4.7 out of 5
By downloading the program you accept the terms of the License agreement
Read more

AdGuard
for Mac

AdGuard for Mac is a unique ad blocker designed with macOS in mind. In addition to protecting you from annoying ads in browsers and apps, it shields you from tracking, phishing, and fraud.
User Reviews: 18140
4.7 out of 5
By downloading the program you accept the terms of the License agreement
Read more

AdGuard
for Android

AdGuard for Android is a perfect solution for Android devices. Unlike most other ad blockers, AdGuard doesn't require root access and provides a wide range of app management options.
User Reviews: 18140
4.7 out of 5
By downloading the program you accept the terms of the License agreement

AdGuard
for iOS

The most advanced ad blocker for Safari: it makes you forget about pop-up ads, speeds up page loading, and protects your personal data. A manual element-blocking tool and highly customizable settings help you tailor the filtering to your exact needs.
User Reviews: 18140
4.7 out of 5
By downloading the program you accept the terms of the License agreement

AdGuard Browser extension

AdGuard is the fastest and most lightweight ad blocking extension that effectively blocks all types of ads on all web pages! Choose AdGuard for the browser you use and get ad-free, fast and safe browsing.
User Reviews: 18140
4.7 out of 5

AdGuard for Safari

Ad blocking extensions for Safari are having hard time since Apple started to force everyone to use the new SDK. AdGuard extension is supposed to bring back the high quality ad blocking back to Safari.
User Reviews: 18140
4.7 out of 5
Available on the
App Store
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AdGuard Home

AdGuard Home is a network-wide software for blocking ads & tracking. After you set it up, it’ll cover ALL your home devices, and you don’t need any client-side software for that. With the rise of Internet-Of-Things and connected devices, it becomes more and more important to be able to control your whole network.
User Reviews: 18140
4.7 out of 5

AdGuard Content Blocker

AdGuard Content Blocker will eliminate all kinds of ads in mobile browsers that support content blocker technology — namely, Samsung Internet and Yandex.Browser. While being more limited than AdGuard for Android, it is free, easy to install and still provides high ad blocking quality.
User Reviews: 18140
4.7 out of 5
By downloading the program you accept the terms of the License agreement
Read more

AdGuard Assistant

A companion browser extension for AdGuard desktop apps. It offers an in-browser access to such features as custom element blocking, allowlisting a website or sending a report.
User Reviews: 18140
4.7 out of 5
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If you can't find your browser, try the old legacy Assistant version, which you can find in AdGuard extension settings.
Downloading AdGuard To install AdGuard, click the file indicated by the arrow Select "Open" and click "OK", then wait for the file to be downloaded. In the opened window, drag the AdGuard icon to the "Applications" folder. Thank you for choosing AdGuard! Select "Open" and click "OK", then wait for the file to be downloaded. In the opened window, click "Install". Thank you for choosing AdGuard!
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