Sizing Up The Scourge of Credential-Stuffing

Minimalist · Aug 16, 2019

Google Estimates 1.5% of Web Logins Exposed in Data Breaches

A study released by Google estimates that 1.5% of all logins used across the web are vulnerable to credential stuffing attacks due to being disclosed in data breaches. This number is based off of anonymous login data provided to Google through their Password Checkup extension.
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https://www.bleepingcomputer.com/ne...rcent-of-web-logins-exposed-in-data-breaches/

Minimalist · Aug 19, 2019

Credential Stuffing Attacks vs. Brute Force Attacks

The Open Web Application Security Project (OWASP), a non-profit that is dedicated to web application security, classifies credential stuffing as a subset of brute force attacks. However, in practice, the two types of cyber-attacks use very different methods to accomplish an account takeover and fraud.
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https://www.databreachtoday.com/blogs/credential-stuffing-attacks-vs-brute-force-attacks-p-2767

guest · Sep 12, 2019

The Worrisome Rise of Credential Stuffing
September 12, 2019
https://www.rsaconference.com/industry-topics/blog/the-worrisome-rise-of-credential-stuffing

Account takeover (ATO) is not only one of the most dangerous forms of online fraud; it is increasingly one of the most common.
[...] an especially damaging breed of ATO. It’s called credential stuffing, and seemingly no organization is immune—in recent months, companies ranging from Dunkin’ Donuts and DailyMotion to OkCupid and Reddit have suffered massive credential stuffing ATO attacks.
The high value of your personal and financial data
ATO attacks of any type are dangerous because they involve real accounts created by real users. When a fraudster gets into a legitimate account, they get unrestricted access to that users’ personal and financial data.

Another significant challenge to prevention is that attacks are automated and executed at scale. Attackers often employ massive botnets—a connected network of compromised machines—to do their bidding. By scripting these “bots” to perform login attempts, the attack is scaled out across hundreds of thousands to millions of IP addresses, with each IP only generating a small number of events.
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guest · Sep 13, 2019

61 Billion Assaults in 18 Months: Credential Stuffing Attacks are Rampant, Warns Akamai
September 12, 2019
https://www.cbronline.com/news/credential-stuffing-attempts-akamai/

As data breaches continue to proliferate, credential stuffing attacks have become rampant – and heavily automated.
A new report by Akamai today captures the scale: a mammoth 61 billion credential stuffing attempts in 18 months.
Akamai: Credential Stuffing
In a report focussed on the tech, video media and entertainment sectors, Cambridge, Massachusetts-based Content Delivery Network (CDN) and security firm Akamai notes that the three accounted for 35 percent of credential stuffing attacks over the January 2018 – June 2019 period it tracked.

“Our analysis indicates these three verticals are a stable and consistent attack source for two reasons: personal and corporate data. The targeted brands are household names, and criminals are looking to capitalize on that familiarity.”

By now almost completely automated, credential stuffing attacks are driven by All-in-One (AIO) applications like SNIPR or STORM, it notes.
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guest · Sep 13, 2019

Credential stuffing attacks explained (and some recent examples)
We explain how credential stuffing attacks work and how you can minimize the risk of attacks
September 12, 2019
https://www.comparitech.com/blog/information-security/credential-stuffing-attacks/

Credential stuffing attacks are becoming more common, posing significant threats to internet security. In these attacks, hackers take sets of credentials that have been leaked through data breaches or other means, then attempt to use these credentials to log in to a user’s other accounts.

Credential stuffing attacks are automated and performed at scale, making the endeavor far more profitable than if anyone ever tried to do it manually.
Whenever you hear about a major data breach that includes user passwords, the victims may end up having these leaked credentials used against them in a credential stuffing attack. [...]
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guest · Sep 13, 2019

Disqus & Kickstarter hacker warns against password reuse
September 13, 2019
https://www.zdnet.com/article/disqus-kickstarter-hacker-warns-against-password-reuse/

A hacker who made a fortune by breaking into people's accounts and posting spam on their behalf is now warning users against password reuse.

For years, Milliken and his partners operated by using the credentials stolen from other companies to break into more lucrative accounts on other services.
If users had reused their passwords, Milliken would access their email inboxes, Facebook, Twitter, or Myspace accounts, and post spam promoting various products and services.
PASSWORD REUSE
But while Milliken is getting his new life in order, he's also sharing some advice with the other people who he hacked in the past -- namely regular users.

"The reuse of login credentials in my opinion is the greatest security flaw that we have today," Milliken said. "When I was hacking I had my own personal collection of databases that I could easily search for a company's email and parse all of the data.
"Not only is the reuse of login credentials a huge vulnerability, but even using the same pattern of passwords is a huge mistake," Milliken added.
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TWO-FACTOR AUTHENTICATION
"I honestly think that the big three email providers (Microsoft, Yahoo, Google) added this feature because of me. I was logging into millions of email accounts and really causing havoc with my contact mail spamming."
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guest · Oct 6, 2019

3,000 Kent State student emails hacked
October 2, 2019
http://www.kentwired.com/latest_updates/article_f8e73956-e587-11e9-b613-9394e83236a4.html

On Sept. 19 Kent State announced over 3,000 student emails had been hacked the week before.
According to Robert Eckman of Kent State’s IT department, the breach was a result of credential harvesting.

“These were very likely bots that were assigned the task of grabbing credentials and attempting to log in using a password spray approach (a technique used by hackers to make it harder for us to see their attempts),” Eckman said.
This is the second time in five years the school has dealt with student emails being hacked or breached. In September 2014, student emails were compromised when Russian hackers gained access to passwords of over five million Gmail accounts through a phishing attempt.

The school doesn't have a long term solution for Credential Harvesting, however students have the option of opting into Multi-Factor Authentication which is an extra credential protection by Microsoft.
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guest · Oct 7, 2019

Credit Info Exposed in TransUnion Credential Stuffing Attack
October 7, 2019
https://www.bleepingcomputer.com/ne...sed-in-transunion-credential-stuffing-attack/

Using a credential stuffing attack, an unauthorized person was able to gain access to a TransUnion Canada web portal and use it to pull consumer credit files.

BleepingComputer has learned that starting last week TransUnion Canada began sending out data security incident notifications via postal mail to consumers whose information was exposed in a credential stuffing attack.
These notifications state that an unauthorized user utilized a TransUnion business portal to perform credit file lookups between June 28th and July 11th, 2019. The attacker was able to gain access to the portal using a TransUnion customer's account that was stolen in a credential stuffing attack.

While this is not a data breach in the sense that the hacker were able to gain access to the TransUnion's full database, it is still concerning as they would have been able to query for a consumer's credit file.
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guest · Oct 12, 2019

mood said: ↑

Deliveroo Accounts Are Being Hacked And Sold For Just $6
July 24, 2019
https://www.forbes.com/sites/thomas...nts-hacked-and-sold-on-dark-web/#4fdbfd342ff5
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Hackers sell access to Deliveroo customers’ accounts for as little as £3 with stolen details used to order food shops and restaurants
October 12, 2019
https://www.dailymail.co.uk/news/ar...ss-Deliveroo-customers-accounts-little-3.html

A Mail on Sunday investigation found hackers are advertising a menu of options on the Dark Web, including a one-off fee and pre-paid ‘credit’ for significant discounts.
One customer told us he was hacked five times in one evening this month and another has been hacked twice this year despite changing her password.

After ‘brief investigations’ last week, Hill was able to find evidence that access to Deliveroo and other delivery firm accounts had been traded on the Dark Web.

Deliveroo said last night: ‘We regularly introduce measures to combat fraudsters and to protect customer accounts. Unfortunately, cyber criminals rely on people reusing the same passwords on multiple online services and use data breaches elsewhere to try to gain access to other accounts online.’
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guest · Oct 18, 2019

Canada Post resets passwords after customer accounts accessed
No data breach; problem blamed on reused passwords stolen from other sites
October 17, 2019
https://www.cbc.ca/news/technology/canada-post-passwords-1.5324267

Canada Post says it is resetting passwords for all online customer accounts after some accounts were reportedly accessed by a person other than the customer to which it belonged.

"There has not been a cyberattack or hack of the Canada Post network but we are investigating a report that some customer information may have been compromised in 2017," the company said in a statement released Wednesday.
Canada Post says it will contact customers directly if their information has been accessed. It added that logins and passwords used to access their accounts were likely stolen in other privacy breaches, but the customers had reused the same login and password for their Canada Post account.

CBC News reached out to Canada Post to find out how many online customer accounts it has and how many were affected, but the the Crown corporation declined to say.
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guest · Mar 4, 2020

J.Crew Disables User Accounts After Credential Stuffing Attack
March 4, 2020
https://www.bleepingcomputer.com/ne...er-accounts-after-credential-stuffing-attack/

US clothing retailer J.Crew announced that it was the victim of a credential stuffing attack around April 2019 that led to some of its customers' accounts and information being accessed by hackers.

Their end goal is to log into as many accounts as possible onto the targeted site and take over the identities of the account owners, steal money, or gather information.
Accounts disabled after almost one year
J.Crew Group is a retailer of apparel, shoes, and accessories that operates 182 J.Crew retail stores, 140 Madewell stores, 170 factory stores, and the jcrew.com, jcrewfactory.com, and madewell.com sites as of March 2, 2020.

In a notice of data breach sent to affected customers, J.Crew says that it discovered "through routine and proactive web scanning" that an unauthorized party was able to log in to their jcrew.com accounts using their email addresses and passwords "in or around April 2019."
"The information that would have been accessible in your jcrew.com account includes the last four digits of credit card numbers you have stored in your account [...]" J.Crew's data breach notification explains.
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guest · Jul 16, 2020

Credential stuffing attacks on global media companies are spiking
A new report from Akamai also finds a staggering increase in attacks targeting published content
July 16, 2020
https://www.techrepublic.com/articl...ttacks-on-global-media-companies-are-spiking/

There was a large spike in malicious login attempts against European video service providers and broadcasters during the first quarter of 2020, a newly-released report from digital platform provider Akamai found.

"One attack in late March, after many isolation protocols had been instituted, directed nearly 350,000,000 attempts against a single service provider over a 24-hour period,'' according to Akamai's 2020 State of the Internet/Credential Stuffing in the Media Industry report.
"Separately, one broadcaster well known across the region, was hit with a barrage of attacks over the course of the quarter with peaks that ranged in the billions," the report said.
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Akamai researchers also observed a decline in the cost of stolen account credentials over the course of the quarter, which traded for about $1 to $5 at the start and $10 to $45 for package offers of multiple services. Those prices fell as new accounts and lists of recycled credentials populated the market.
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Akamai: Media Industry Full Of Credential Stuffing Attacks: Akamai

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