Adguard Free Trial: A Recent Brute Force Attack Targeting User Accounts

In a recent incident, AdGuard, a popular ad blocking software, fell victim to a brute force attack that compromised some of its users' accounts. The company confirmed that none of its servers were affected, and only a few user accounts were accessed. Fortunately, the hackers did not compromise any personal data during the breach.

According to Indrey Meshkov, co-founder and CTO of AdGuard, the attackers used a credential stuffing technique to gain access to the affected accounts. This method involves using known credentials such as email addresses and passwords that have been previously leaked in breaches from other organizations to brute force onto a system.

AdGuard detected continuous login attempts from suspicious IP addresses belonging to various servers around the world. The company immediately implemented rate limiting to block brute-force attempts, but this measure was not sufficient to stop the malicious actors from entering the network with accounts that used usernames and password combinations that were leaked elsewhere.

The breach highlights the importance of using strong and unique passwords for all online accounts. It also emphasizes the need for organizations to implement robust security measures to prevent such attacks in the future. AdGuard's prompt response to the incident is a commendable example of how companies should handle data breaches.

In conclusion, the recent brute force attack on AdGuard serves as a reminder that even popular software applications are not immune to cyber threats. It is essential for users to stay vigilant and take necessary precautions to protect their online accounts from unauthorized access.

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