{"id":7907,"date":"2025-12-16T15:02:57","date_gmt":"2025-12-16T15:02:57","guid":{"rendered":"https:\/\/fastestpass.com\/blog\/?p=7907"},"modified":"2026-04-15T11:25:53","modified_gmt":"2026-04-15T11:25:53","slug":"brute-force-attack","status":"publish","type":"post","link":"https:\/\/fastestpass.com\/blog\/brute-force-attack\/","title":{"rendered":"What Is Brute-Force Attack? How Hackers Crack Passwords Fast"},"content":{"rendered":"

\"What<\/span><\/p>\n

A brute force attack is a trial-and-error hacking attempt on your accounts, data, passwords, etc., all confidential items that only you are aware of, online, at unusual hours, and at an unusual speed. It uses an approach to \u201cguess\u201d login credentials, encryption keys, etc., in order to find out password(s) of a particular individual or organization within two seconds to an infinite amount of time.\u00a0<\/span><\/p>\n

This guide will discuss what a brute-force attack is, how hackers use brute force to crack passwords, real-world brute-force attack examples, the latest brute-force tools, cybersecurity best practices for 2025, and much more, to keep you and your loved ones safe from the most advanced hacking methods today.\u00a0<\/span><\/p>\n

NOTE: <\/b>A brute force attack only works when people set easily guessable passwords for them across various accounts. If you or someone you know does the same just because it\u2019s easy to remember them this way, stop doing so immediately.\u00a0<\/span><\/p><\/blockquote>\n

With the necessary brute-force detection software, you can easily prevent brute-force attacks in 2025. This guide will cover every aspect of a brute force attack and how to keep yourself safe from them today!<\/span><\/p>\n

\n Get FastestPass <\/i><\/a>\n <\/div>\n<\/span><\/p>\n

What Is a Brute-Force Attack? Brute Force Explained<\/b><\/h2>\n

A brute force password hack is a trial-and-error automated method that guesses the passwords to the accounts of an individual or an organization, from pre-existing data, which combines commonly used passphrases together with the most commonly used characters in a particular password.\u00a0<\/span><\/p>\n

For example, if an NBA fan chooses a password for their email account like Lakeshow21, chances are that their password will be guessed by the brute force mechanism within seconds. This is how hackers crack passwords in brute force, by using automation in guessing what could and would be a person\u2019s password, especially if they have a password that can be easily guessed.\u00a0<\/span><\/p>\n

Types of Brute-Force Attacks<\/b><\/h2>\n

So, a brute-force attack can be brutal, but do you know how brutal it can be? Have a look:<\/span><\/p>\n

Simple brute-force (manual guesses, weak passwords)<\/b><\/h3>\n

The simplest of them all is the simple brute-force attack. In this attack, the attacker literally guesses the password(s) of the attacked by trying to recognize the weak links. In this type of attack, the criminal is sure that the person handling their own password would have kept a very generic, guessable password for the majority of their accounts.\u00a0<\/span><\/p>\n

Dictionary attacks and wordlist-based attacks<\/b><\/h3>\n

Another type of brute force attack, and one most associated with a brute force password attack, is a dictionary attack. Think dictionary, think spelling bee, now think a combination of words, previously leaked passwords, and common phrases, generated with special codes and tested on hundreds of thousands of accounts, until the accounts are compromised.\u00a0<\/span><\/p>\n

Attackers use special tools and codes that run through these lists to find a match, exploiting the human tendency to choose easy-to-remember passwords.<\/span><\/p>\n

Hybrid brute-force (combining lists with randomization)<\/b><\/h3>\n

A hybrid password brute force attack is a sophisticated dictionary attack. It doesn\u2019t just rely on words or previously leaked passwords; it creates a password comprising letters, characters, and numbers, with the same systematic approach as in a dictionary attack, just this time in a more advanced way.\u00a0<\/span><\/p>\n

For example, guessing a password like \u201c$icil!@\u201d through advanced approaches.\u00a0<\/span><\/p>\n

Credential stuffing (reusing stolen logins)<\/b><\/h3>\n

In this method of a password attack, the attacker uses username and password combinations from previous data breaches and online leaks. Through automated tasks, attackers store passwords and passkeys in an account and breach the target account(s) overnight.\u00a0<\/span><\/p>\n

Reverse brute-force and targeted attacks<\/b><\/h3>\n

In this type of password brute attack, the attacker reverse engineers their methods to attack a desired account\/password\u00a0<\/span><\/p>\n

Brute Force vs Dictionary Attack Explained<\/b><\/h2>\n

With a brute force attack, the hacker tries every possible combination of characters to find and hack a password, which works out slowly but eventually, especially against complex passwords.<\/p>\n

Meanwhile, a dictionary attack only guesses passwords with phrases and combinations that already exist, which doesn’t work against complex passwords.<\/p>\n\n\n\n\n\n\n
Attack Type<\/b><\/td>\nMethod<\/b><\/td>\nSpeed<\/b><\/td>\nSuccess Rate Against Strong Passwords<\/b><\/td>\n<\/tr>\n
Brute Force<\/b><\/td>\nEvery possible combination<\/span><\/td>\nSlow<\/span><\/td>\nEventually succeeds (theoretically)<\/span><\/td>\n<\/tr>\n
Dictionary<\/b><\/td>\nWord lists + common patterns<\/span><\/td>\nVery Fast<\/span><\/td>\nHigh if the password is predictable<\/span><\/td>\n<\/tr>\n
Hybrid<\/b><\/td>\nDictionary + brute force mutations<\/span><\/td>\nFast<\/span><\/td>\nHigh even against complex passwords secappslearning+1\u200b<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Real\u2011World Brute Force Attack Examples<\/b><\/h2>\n

A real-life example of a brute force attack is the 2020 attack on the Canadian Revenue Agency (CRA) when hackers gained access to accounts for government services. As a result of this planned-out dictionary attack, at least 11,000 accounts were compromised.\u00a0<\/span><\/p>\n

Another widely remembered example of a\u00a0<\/span>brute-force attack is the\u00a02025 Microsoft Entra ID Campaign<\/strong>, in which attackers brute\u2011forced API keys and weak service accounts, gaining access to<\/span>\u00a0thousands of tenants.\u200b<\/span><\/p>\n

How Hackers Perform Brute Force Attacks<\/b><\/h2>\n

Hackers use tools to perform brute-force attacks. Some of the most commonly used open-source tools they deploy are:<\/span><\/p>\n\n\n\n\n\n\n\n
Tool<\/b><\/td>\nPurpose<\/b><\/td>\nSpeed Advantage<\/b><\/td>\n<\/tr>\n
Hydra<\/span><\/td>\nLogin form\/API brute force<\/span><\/td>\nMulti\u2011protocol<\/span><\/td>\n<\/tr>\n
Hashcat<\/span><\/td>\nOffline password cracking<\/span><\/td>\nGPU acceleration<\/span><\/td>\n<\/tr>\n
John the Ripper<\/span><\/td>\nHash cracking + rules<\/span><\/td>\nHybrid attacks<\/span><\/td>\n<\/tr>\n
Medusa<\/span><\/td>\nParallelized logins<\/span><\/td>\nMulti\u2011threaded fortinet+1\u200b<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Brute Force Attack Prevention and FastestPass<\/b><\/h2>\n

Defeating brute force hacking passwords requires layered defenses beyond “make passwords longer.”\u00a0<\/span><\/p>\n

Here\u2019s what you need to do:<\/span><\/p>\n

    \n
  • Limit login attempts (5 tries \u2192 30\u2011minute lockout) on all services.<\/span><\/li>\n
  • MFA stops 99%+ of brute force successes since guessing a password does not guess your phone or hardware key.<\/span><\/li>\n
  • Use 16+ character passphrases generated by a password manager such as FastestPass. No reuse.<\/span><\/li>\n<\/ul>\n

    \n

    \n
    \n
    \n What is a brute force attack? <\/div>\n
    \n
    \n

    A brute force attack is a modern way of hackers trying to hack and access accounts, systems, databases, cloud, and other important information by targeting passwords with an automated method that works on a trial and error model to crack a password, as long as it tries every possible combination for a particular password.\u00a0<\/span><\/p>\n <\/div>\n <\/div>\n <\/div>\n

    \n
    \n What is brute force and its types? <\/div>\n
    \n
    \n

    A brute force attack is a trial-and-error attack that uses automation to guess a targeted password\u2019s characters. Some of its types are Simple, Dictionary, Hybrid, Reverse, and Credential Stuffing attacks, each of which uses a different strategy.\u00a0<\/span><\/p>\n <\/div>\n <\/div>\n <\/div>\n

    \n
    \n What are the signs of a brute force attack? <\/div>\n
    \n
    \n

    The signs of a brute force attack are always sudden; you will notice an unusual increase in failed login attempts of your account, multiple account login attempts at unusual hours, and more such unusual signs.\u00a0<\/span><\/p>\n <\/div>\n <\/div>\n <\/div>\n

    \n
    \n How long does it take to brute-force a password? <\/div>\n
    \n
    \n

    Cracking a password in a brute force attack can take anywhere between two seconds to an indefinite amount of time, depending on the length and choice of characters in a particular password.\u00a0<\/span><\/p>\n <\/div>\n <\/div>\n <\/div>\n

    \n
    \n What are the best tools to protect against brute-force attempts? <\/div>\n
    \n
    \n

    Implementing multi-factor authentication (MFA), using web application firewalls (WAFs) and intrusion detection systems (IDS), using password managers like FastestPass, and deploying account lockout policies that limit login attempts are some of the best ways and tools to protect oneself against brute force attacks.\u00a0<\/span><\/p>\n <\/div>\n <\/div>\n <\/div>\n<\/div>\n\n<\/span><\/p>\n

    Conclusion<\/b><\/h2>\n

    A brute force attack can be brutal, especially if you have been attacked, and by the time you know about how brute force attack cracks passwords quickly, you won\u2019t even be able to act in time. However, with the right tools and the right strategy, setting up all of your passwords or updating them is required. FastestPass offers an industry-leading password manager for individuals and businesses who are dealing with password security problems at scale. All you need to do is remember a master password for all your passwords, passkeys, important details, and more crucial items that are stored on the cloud. Download the app for all your devices today!\u00a0<\/span><\/p>\n

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    Secure and Create Stronger Passwords Now!<\/h2>\n\t

    Generate passkeys, store them in vaults, and safeguard sensitive data!<\/p>\n<\/div>\n

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