Search results for brute force attack | Breaking Cybersecurity News | The Hacker News

How to hack an Instagram account? The answer to this question is difficult to find, but a bug bounty hunter just did it without too many difficulties. Belgian bug bounty hunter Arne Swinnen discovered two vulnerabilities in image-sharing social network Instagram that allowed him to brute-force Instagram account passwords and take over user accounts with minimal efforts. Both brute-force attack issues were exploitable due to Instagram’s weak password policies and its practice of using incremental user IDs. "This could have allowed an attacker to compromise many accounts without any user interaction, including high-profile ones," Swinnen wrote in a blog post describing details of both vulnerabilities. Brute-Force Attack Using Mobile Login API Swinnen discovered that an attacker could have performed brute force attack against any Instagram account via its Android authentication API URL, due to improper security implementations. According to his blog post , fo...

Threat actors constantly change tactics to bypass cybersecurity measures, developing innovative methods to steal user credentials. Hybrid password attacks merge multiple cracking techniques to amplify their effectiveness. These combined approaches exploit the strengths of various methods, accelerating the password-cracking process.  In this post, we’ll explore hybrid attacks — what they are and the most common types. We’ll also discuss how your organization can defend against them. The blended approach of hybrid attacks Threat actors are always looking for better, more successful ways to crack passwords — and hybrid attacks allow them to combine two different hacking techniques into a single attack. By integrating attack methodologies, they can take advantage of the strengths associated with each method, increasing their chances of success. And hybrid attacks aren’t just limited to cracking passwords. Cybercriminals regularly combine technical cyberattacks with other tactics, ...

Thanks to recent events involving certain celebrities’ stolen pictures, “brute-force attack” is now one of the hot buzz words making its rounds. As an IT professional - do you know what a brute force attack is, how to spot one when it happens, and how to prevent it? A brute-force attack is, simply, an attack on a username, password, etc. that systematically checks all possible combinations until the correct one is found. Scripts are usually used in these attacks to automate the process of arriving at the correct username/password combination. This is why time is of the essence when it comes to detecting and stopping a brute force attack – the more time the attacker has, the more passwords can be tried. Brute force attacks are one of the few hacks detectable by their volume, rather than their type. In your web (or proprietary app) logs, you’ll usually see a crazy amount of failed login attempts, usually originating from the same IP address. You might even see the same accoun...

Passwords are rarely appreciated until a security breach occurs; suffice to say, the importance of a strong password becomes clear only when faced with the consequences of a weak one. However, most end users are unaware of just how vulnerable their passwords are to the most common password-cracking methods. The following are the three common techniques for cracking passwords and how to defend against them. Brute force attack Brute force attacks are straightforward yet highly effective techniques for cracking passwords. These attacks involve malicious actors using automated tools to systematically try every possible password combination through repeated login attempts. While such tools have existed for years, the advent of affordable computing power and storage has made them even more efficient today, especially when weak passwords are used. How it works When it comes to brute force attacks, malicious actors employ a range of tactics—from simple brute force attacks that test ev...

While passwords remain the first line of defense for protecting user accounts against unauthorized access, the methods for creating strong passwords and protecting them are continually evolving. For example, NIST password recommendations are now prioritizing password length over complexity. Hashing, however, remains a non-negotiable. Even long secure passphrases should be hashed to prevent them from being completely exposed in the event of a data breach – and never stored in plaintext. This article examines how today’s cyber attackers attempt to crack hashed passwords, explores common hashing algorithms and their limitations, and discusses measures you can take to protect your hashed passwords, regardless of which algorithm you are using. Modern password cracking techniques Malicious actors have an array of tools and methods at their disposal for cracking hashed passwords. Some of the more widely used methods include brute force attacks, password dictionary attacks, hybrid attacks...

Most of the times, we have reported about WordPress vulnerabilities involving vulnerable plugins, but this time security researchers have discovered Brute Force Amplification attacks on the most popular CMS (content management system) platform. Researchers from security firm Sucuri have found a way to perform Brute Force amplification attacks against WordPress' built-in XML-RPC feature to crack down administrator credentials. XML-RPC is one of the simplest protocols for securely exchanging data between computers across the Internet. It uses the system.multicall method that allows an application to execute multiple commands within one HTTP request. A number of CMS including WordPress and Drupal support XML-RPC. But… The same method has been abused to amplify their Brute Force attacks many times over by attempting hundreds of passwords within just one HTTP request, without been detected. Amplified Brute-Force Attacks This means instead of trying tho...

Threat actors are conducting brute-force attacks against WordPress sites by leveraging malicious JavaScript injections, new findings from Sucuri reveal. The attacks, which take the form of distributed brute-force attacks, “target WordPress websites from the browsers of completely innocent and unsuspecting site visitors,” security researcher Denis Sinegubko  said . The activity is part of a  previously documented attack wave  in which compromised WordPress sites were used to inject crypto drainers such as Angel Drainer directly or redirect site visitors to Web3 phishing sites containing drainer malware. The latest iteration is notable for the fact that the injections – found on  over 700 sites  to date – don’t load a drainer but rather use a list of common and leaked passwords to brute-force other WordPress sites. The attack unfolds over five stages, enabling a threat actor to take advantage of already compromised websites to launch distributed brute-force ...

Password manager Dashlane has disclosed that "fewer than" 20 users on the personal subscription plan had their encrypted vaults downloaded following a brute-force attack launched by an unknown party. On May 31, 2026, the company said an "external" threat actor launched a brute-force attack against certain Dashlane user accounts with the aim of breaking two-factor authentication (2FA) protections and allowing them to register new devices on existing user accounts. Exactly how many users were targeted remains unknown, but Dashlane said the high volume of attempts on those accounts triggered temporary account suspensions and authentication issues due to its built-in security controls. Although access to the accounts has since been restored, the company has now revealed that the attackers were successful in a handful of cases, enabling them to download a copy of the encrypted vaults belonging to less than 20 personal plan users. "We have directly notif...

Yesterday we received a vulnerability report in web applications from some unknown Indian Hacker, who explained that how Hackers are hijacking Mobile recharge and Free SMS service related websites.  He detailed the loophole in password reset process, that could allow attackers to brute force many high profile websites that are actually not protected by the image CAPTCHA verification system, during the password reset process. The hacker used a Firefox Browser equipped with the Fireforce add-on , a very simple a Firefox extension designed to perform brute-force attacks on GET and POST forms. The technique proposed by him targets the unsecure password reset process used by many websites, where the web application used to send a code to the user’s mobile or email for authenticity verification. Around 40% websites adopts password reset code composed of numbers and of some fixed length, typically having a length less than 5 digits. This information could advan...

Roberto Suggi Liverani , founder of the OWASP (Open Web Application Security Project) New Zealand chapter discover a vulnerability in Cisco CallManager AKA Unified Communications Manager. It is a software-based call-processing system developed by Cisco Systems. He described on his blog " During a security review, I have found a quick way to perform PIN brute force attack against accounts registered with a Cisco Unified Communications Manager (CallManager). " Researcher target the HTTP GET requests used by CallManager to initiate the login process. :  https://x.x.x.x/ccmpd/pdCheckLogin.do?name=undefined He Demonstrated the idea with Burp Suite (Penetration testing Framework). He showed the html form parameter used for login as shown below: https://x.x.x.x/ccmpd/login.do?sid=_sid_value_&userid=_userid_&pin=_PIN_ The sid token is required to perform the PIN brute force attack. So first get a valid...

SHA-1, Secure Hash Algorithm 1, a very popular cryptographic hashing function designed in 1995 by the NSA, is officially dead after a team of researchers from Google and the CWI Institute in Amsterdam announced today submitted the first ever successful SHA-1 collision attack. SHA-1 was designed in 1995 by the National Security Agency (NSA) as a part of the Digital Signature Algorithm. Like other hashes, SHA-1 also converts any input message to a long string of numbers and letters that serve as a cryptographic fingerprint for that particular message. Collision attacks appear when the same hash value (fingerprint) is produced for two different messages, which then can be exploited to forge digital signatures, allowing attackers to break communications encoded with SHA-1. The explanation is technologically tricky, but you can think of it as attackers who surgically alters their fingerprints in order to match yours, and then uses that to unlock your smartphone. The researchers h...

Snapchat , a Smartphone application that lets users share snapshots with friends is catching fire among teenagers. It was first hacked in December when 4.6 million Snapchat users were exposed in a database breach. Later, the denial-of-service attack and CAPTCHA Security bypass were discovered by other researchers within last two-three weeks. Snapchat has no Vulnerability Reward Program, but still many penetration testers are working hard and free of cost to make the application more secure by disclosing flaws. Interestingly, this is not the end of vulnerabilities, Mohamed Ramadan , a security researcher with Attack-Secure from Egypt, has spotted a new vulnerability on Snapchat that allow an attacker to brute-force login credentials of the users. Brute-force is a process of trying multiple passwords against a username until you get a correct password. " This vulnerability allows anyone who knows your SnapChat email to brute force your account’s password without any...

Popular source code repository service GitHub has recently been hit by a massive Password Brute-Force attack that successfully compromised some accounts,  GitHub has urged users to set up two-factor authentication for their accounts and has already reset passwords for compromised accounts. “ We sent an email to users with compromised accounts letting them know what to do ,” “ Their passwords have been reset and personal access tokens, OAuth authorizations, and SSH keys have all been revoked. ”  However, GitHub uses the  bcrypt  algorithm to hash the passwords , which is extremely resilient against brute force attacks because it takes an inordinate amount of time to encrypt each password. In a blog post , GitHub engineer Shawn Davenport said that a brute force attack from around 40,000 IP addresses revealed some commonly used passwords . These addresses were used to slowly brute force weak passwords. In addition to normal strength re...

Microsoft's Active Directory is  said to be used by 95%  of Fortune 500. As a result, it is a prime target for attackers as they look to gain access to credentials in the organization, as compromised credentials provide one of the easiest ways for hackers to access your data. A key authentication technology that underpins Microsoft Active Directory is Kerberos. Unfortunately, hackers use many different attacks against Active Directory's implementation of the Kerberos authentication protocol. One of those is AS-REP Roasting. So what is AS-REP Roasting, and how can businesses protect themselves? What is Active Directory Kerberos? Kerberos was originally developed by the Massachusetts Institute of Technology (MIT) and centered around using tickets to establish trust. Microsoft's implementation of Kerberos found in Active Directory is based on Kerberos Network Authentication Service (V5) as defined in  RFC 4120 . However, Microsoft has added to and enhanced Kerberos with ...

An Independent Security Researcher from Egypt has discovered a critical vulnerability in Uber app that could allow an attacker to brute force Uber promo code value and get valid codes with the high amount of up to $25,000 for more than one free rides. Mohamed M.Fouad has discovered a " promo codes brute-force attack " vulnerability in the sign-up invitation link for Uber that allows any user to invite another user to join the service and get one or more than one free rides based on the promotion code value. Fouad realized that the Uber app did not have any kind of protection against brute-force attacks, allowing him to generate promo codes ( that start with 'uber+code_name' ) until he found valid ones. The brute force attempt helped Fouad find several numbers of valid promo codes with high value in US dollar between $5,000 to $25,000, which would have helped him get a number of free rides between one to three. Fouad has also provided a video demonstration...