{"id":60833,"date":"2025-11-30T18:33:56","date_gmt":"2025-11-30T13:03:56","guid":{"rendered":"https:\/\/www.techjockey.com\/blog\/?p=60833"},"modified":"2025-11-30T18:33:57","modified_gmt":"2025-11-30T13:03:57","slug":"brute-force-attacks","status":"publish","type":"post","link":"https:\/\/www.techjockey.com\/blog\/brute-force-attacks","title":{"rendered":"Brute Force Attacks: Latest Cases & How to Protect Your Business"},"content":{"rendered":"\n
Cyberattacks are growing smarter every year and are expected to grow 15% in the next two years.<\/p>\n\n\n\n
But sometimes hackers still rely on one of the oldest and most aggressive hacking methods – the brute force attack. It may sound basic, but it remains one of the most common and dangerous ways to break into accounts, networks, firewalls, and cloud services. And as recent global security advisories show, brute force attacks are scaling bigger than ever.<\/p>\n\n\n\n
In this blog, we\u2019ll explore what a brute force attack is, how it works, the latest real-world examples, and what you can do to protect your organization.<\/p>\n\n\n\n
A brute force attack is a hacking technique where an attacker repeatedly tries different passwords or key combinations until the correct one is found.<\/p>\n\n\n\n
It\u2019s like trying every possible key on a lock; eventually, one will open the door. Hackers rely on automation and computational power to make millions of attempts per second, enabling them to break into digital systems.<\/p>\n\n\n\n
Cybercriminals use automated brute force software to speed up these attacks. These tools can attempt huge password combinations against servers, VPNs<\/a>, firewalls<\/a>, and websites without needing any manual effort.<\/p>\n\n\n\n The method used by attackers to compute millions of password combinations is often called a brute force algorithm. This algorithm tries every possible combination in a systematic order, be it numbers, letters, special characters, patterns, until a perfect match is found. When applied with large computing clusters or distributed botnets, even long passwords can fall in less time than expected.<\/p>\n\n\n\n Did you know there\u2019s another rising trend of reverse brute force attacks, which is another technique to hack an account?<\/p>\n\n\n\n Opposite to brute force attacks, where a single account is hacked by using a combination of different passwords, a reverse brute force attack uses one common password for millions of usernames. For example, the attacker takes one commonly used password, say, Admin@123 and try this password across multiple usernames.<\/p>\n\n\n\n Because many organizations still rely on predictable password patterns, this technique allows hackers to break into large numbers of accounts quickly without triggering account lockouts or rate-limit rules.<\/p>\n\n\n\n To understand How this work, imagine a bot continuously guessing login credentials like admin123, admin@123, Admin!2024, and so on. When the login finally succeeds, the attacker gains access to private systems. This may lead to data theft, system shutdown, ransomware attacks, or taking full control of accounts.<\/p>\n\n\n\n Once inside, attackers might go further by using the compromised access to move through networks. They can bypass more security controls, install malware or spyware, or exfiltrate sensitive business data.<\/p>\n\n\n\n Even though many organizations are more aware of cybersecurity, hackers are scaling these attacks faster than before. Global botnets and proxy networks now allow attackers to use millions of IP addresses to launch high-speed password-guessing attacks without getting blocked easily.<\/p>\n\n\n\n Weak passwords continue to make this attack extremely effective.<\/p>\n\n\n\n Some common forms of brute force attack include:<\/p>\n\n\n\n Attackers may use a brute force attacks software tailored for each method, depending on their target.<\/p>\n\n\n\n Unfortunately, 2025 has seen a spike in brute force attacks in cybersecurity, exposing weaknesses in even the most trusted security brands. Below are some major incidents.<\/p>\n\n\n\n In September 2025, SonicWall issued an urgent advisory warning customers that hackers were conducting brute force attacks against cloud backup service infrastructure via the MySonicWall.com portal. The investigation revealed that hackers accessed around 5% of firewall backup preference files. Although stored credentials were encrypted, the files contained technical configurations that could help attackers exploit firewall devices.<\/p>\n\n\n\n In February 2025, researchers from The Shadowserver Foundation flagged a massive brute force password cracking attack involving 2.8 million IP addresses per day. The attack targeted VPN and firewall devices from major vendors like Ivanti, SonicWall, and Palo Alto Networks. Many of the source IP addresses were linked to compromised routers and IoT devices, especially in Brazil, Russia, Turkey, Argentina, and Mexico. Since these devices acted as residential proxies, malicious traffic appeared normal, making it extremely difficult for businesses to detect or block.<\/p>\n\n\n\n In June-July 2025, cybersecurity company Intrinsec traced aggressive brute force and password spraying campaigns against SSL<\/a> VPN and RDP devices to autonomous system FDN3 (Ukraine).<\/p>\n\n\n\n The infrastructure was linked to bulletproof hosting services spread across Ukraine and Seychelles – networks well known for supporting malware distribution and ransomware operations.<\/p>\n\n\n\n Researchers found overlaps with cybercriminal groups using brute force attacks as the first step to deploy ransomware in corporate environments.<\/p>\n\n\n\n Early detection is critical. Security teams should watch for:<\/p>\n\n\n\n<\/span>What is Brute Force Algorithm?<\/span><\/h2>\n\n\n\n
<\/span>Reverse Brute Force Attack – A Rising Trend<\/span><\/h3>\n\n\n\n
<\/span>How Does a Brute Force Attack Work?<\/span><\/h2>\n\n\n\n
<\/figure>\n\n\n\n<\/span>Why Brute Force Attacks Are Getting Worse?<\/span><\/h2>\n\n\n\n
<\/span>Types of Brute Force Attack<\/span><\/h2>\n\n\n\n
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<\/span>Brute Force Attacks in 2025<\/span><\/h2>\n\n\n\n
<\/span>1. Attack on SonicWall Cloud Backup Service<\/span><\/h3>\n\n\n\n
<\/span>2. 2.8 Million IPs Used in Massive Global Attack on VPN Devices<\/span><\/h3>\n\n\n\n
<\/span>3. Ukrainian Network FDN3 Linked to Large-Scale Password Attacks<\/span><\/h3>\n\n\n\n
<\/span>How to Detect Brute Force Attacks?<\/span><\/h2>\n\n\n\n