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Urgent Action Required: Nansen, Leading Crypto Firm, Urges Users to Reset Passwords Following Major Security Incident

Crypto firm Nansen urges users to reset passwords following a vendor breach. In an effort to ensure security, the company advises its customers to change their login credentials as a precautionary measure. Nansen takes swift action to protect user data and maintain trust. Stay informed and stay safe in the ever-evolving world of cryptocurrency.

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Nansen crypto firm urges users to reset passwords following major security incident.

Nansen Users Asked to Reset Passwords Following Data Breach

In the wake of a recent data breach at its authentication provider, Ethereum blockchain analytics firm Nansen has requested a subset of its users to reset their passwords.

Nansen, a well-known entity in the cryptocurrency space, offers users insights into Ethereum wallet activity, helps identify emerging projects, and assists in making informed investment decisions.

In a letter sent to affected users, Nansen revealed that they were informed on September 20th that one of their third-party vendors had experienced a data breach.

According to Nansen, the unnamed vendor was compromised by an attacker who gained access to an admin panel controlling customer access on the analytics platform.

Upon being notified of the incident, Nansen promptly halted the malicious activity. However, their subsequent investigation confirmed that user data had indeed been compromised.

“Based on our preliminary investigations over the past 48 hours, we have determined that 6.8% of our users were impacted,” reads Nansen’s notice shared on Twitter.

The notice further states, “These users had their email addresses exposed, with a smaller portion also having password hashes exposed, and a last, smaller group had their blockchain addresses exposed.”

Nansen's notice of breach
Nansen’s notice of data breach

If you have any information on the breached provider or other attacks, you can contact us confidentially via Signal at 646-961-3731 or on Telegram at @lableep.

All affected users have been notified about the breach through email notifications, and Nansen’s support team has also reached out to them, requesting a password reset.

Although the passwords were encrypted, Nansen advises impacted individuals to change their passwords as a precautionary measure against potential brute-forcing.

The firm highlights the increased risk of phishing for individuals whose details have been exposed. With knowledge of digital asset ownership and email addresses, threat actors can target them more effectively.

As the investigation is still ongoing, it is possible that the scope of the impact may be revised to include more users.

Therefore, it is advisable for all Nansen users, regardless of whether they have received a notice, to reset their passwords as a precautionary measure.

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Malware

Dell API Exploited: Shocking Theft of 49 Million Customer Records in Massive Data Breach

Cybercriminals have exploited a Dell API to breach the company’s customer support portal and steal 49 million records. Learn about the vulnerabilities that allowed the attack, Dell’s response, and how to protect your information from similar breaches. Stay vigilant with the latest security news from BleepingComputer.com.

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Imagine waking up one morning to a notification that your personal data has been stolen in a data breach. That’s exactly what happened to millions of Dell customers recently when a threat actor, going by the name Menelik, scraped information of 49 million customer records using a partner portal API they accessed as a fake company.

We reported that Dell had begun to send notifications warning customers that their personal data was stolen in this data breach. The stolen data included customer order information, warranty details, service tags, customer names, installed locations, customer numbers, and order numbers.

So, How Did This Happen?

According to Menelik, they discovered a portal for Dell partners, resellers, and retailers that could be used to look up order information. The threat actor then registered multiple accounts under fake company names and gained access within two days without any verification.

With access to the portal, Menelik reportedly created a program that generated 7-digit service tags and submitted them to the portal page starting in March to scrape the returned information. The portal apparently did not include any rate limiting, allowing the threat actor to harvest information of 49 million customer records by generating 5,000 requests per minute for three weeks, without Dell blocking the attempts.

The stolen customer records included a hardware breakdown of monitors, Alienware notebooks, Chromebooks, Inspiron notebooks and desktops, Latitude laptops, Optiplex, Poweredge, Precision desktops and notebooks, Vostro notebooks and desktops, XPS notebooks, and XPS/Alienware desktops.

Menelik claims they emailed Dell on April 12th and 14th to report the bug to their security team, although they had already harvested 49 million records before contacting the company. Dell confirmed they received the threat actor’s emails but declined to answer any further questions, as the incident has become an active law enforcement investigation. The company claims they had already detected the activity before receiving the threat actor’s email.

APIs: A Growing Weakness in Data Security

Easy-to-access APIs have become a massive weakness for companies in recent years, with threat actors abusing them to scrape sensitive data and sell them to other threat actors. In 2021, threat actors abused a Facebook API bug to link phone numbers to over 500 million accounts. This data was leaked almost for free on a hacking forum, only requiring an account and paying $2 to download it.

Later that year, in December, threat actors exploited a Twitter API bug to link millions of phone numbers and email addresses to Twitter accounts, which were then sold on hacking forums. More recently, a Trello API flaw was exploited last year to link an email address to 15 million accounts, which were again put up for sale on a hacking forum.

While all of these incidents involved scraping data, they were allowed due to the ease of access to APIs and the lack of proper rate limiting for the number of requests that can be made per second from the same host.

What Can You Do About It?

As cybersecurity experts, we want to help you stay protected and informed. Don’t wait for the next data breach to happen. Stay up-to-date on cybersecurity news, tips, and advice by following our IT Services page. Knowledge is power, and we’re here to keep you in the loop. And if you have any questions or concerns about your own cybersecurity, don’t hesitate to reach out to us. We’re always here to help.

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Malware

Massive Ohio Lottery Ransomware Attack: Shocking Impact on Over 538,000 Individuals

The Ohio Lottery experienced a ransomware attack, compromising the personal information of over 538,000 individuals. The cybercriminals behind the attack demanded a ransom of 50 bitcoin, which the Lottery refused to pay. The affected data includes names, addresses, social security numbers, and birth dates of past winners and employees.

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Imagine waking up on Christmas Eve to find out that your personal information has been compromised in a cyberattack. That’s precisely what happened to over 538,000 individuals when the Ohio Lottery experienced a data breach on December 24, 2023.

In a filing with the Office of Maine’s Attorney General, it was revealed that the attackers gained access to names, Social Security numbers, and other personal identifiers. Thankfully, the Ohio Lottery assured that the gaming network was not affected by the incident.

Even though no evidence of fraud using the stolen information was found, the Ohio Lottery provided free credit monitoring and identity theft protection services to all potentially impacted individuals, just to be on the safe side.

DragonForce Ransomware Gang Claims Responsibility

While the Ohio Lottery didn’t disclose the nature of the incident, the DragonForce ransomware gang claimed responsibility for the attack a few days later. The group stated that they encrypted devices and stole documents belonging to both customers and employees of the Ohio Lottery.

On December 27, the ransomware group mentioned on their dark web leak site that they had stolen over 3 million records. After negotiations failed, the gang leaked four .bak archives and multiple CSV files on January 22, allegedly taken from the Ohio Lottery’s systems.

According to DragonForce, the 94 GB of leaked data contains 1.5 million records with Ohio Lottery clients’ names, Social Security numbers, and dates of birth.

DragonForce ransomware seems to be a relatively new operation, having exposed its first victim in December 2023. However, their tactics, negotiation style, and data leak site suggest that they are an experienced extortion group. With nearly four dozen victims listed on their leak site and law enforcement disrupting many ransomware operations recently, it’s possible that this group is a rebrand of a previously known gang.

DragonForce ransomware also claimed responsibility for a cyberattack that impacted Japanese probiotic beverage manufacturer Yakult’s IT systems in Australia and New Zealand in mid-December. Yakult disclosed the attack after the ransomware gang leaked what it claimed to be 95 GB of data stolen from the company’s compromised servers.

Don’t Let This Happen to You

Cyberattacks are becoming more and more sophisticated, and the stakes are higher than ever. With personal information at risk, it’s crucial to stay informed and take proactive steps to protect yourself and your data.

We’re here to help. Our IT Services can assist you in staying up-to-date with the latest cybersecurity threats, providing guidance on how to safeguard your information and helping you navigate the ever-changing digital landscape.

Contact us today to learn more about how we can help you stay secure in this increasingly interconnected world. And don’t forget to keep coming back for the latest cybersecurity news and updates.

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Malware

Dell Sounds Alarm on Massive Data Breach: 49 Million Customers Potentially Impacted

Dell has warned 49 million customers of a potential data breach as unauthorized individuals attempted to extract customer data from its network. The company has reset all affected users’ passwords and is urging them to stay vigilant for any suspicious activity.

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Did you know that Dell recently experienced a data breach? A threat actor claimed to have stolen information for approximately 49 million customers. As a result, Dell started sending out data breach notifications to customers, informing them that a Dell portal containing customer information related to purchases was breached.

Now, you might be wondering, what kind of information was accessed during this breach? Well, according to Dell, the following information was compromised:

  • Name
  • Physical address
  • Dell hardware and order information, including service tag, item description, date of order, and related warranty information

Fortunately, the stolen information does not include financial or payment information, email addresses, or telephone numbers. Dell is currently working with law enforcement and a third-party forensics firm to investigate the incident.

How did this happen?

As reported by Daily Dark Web, a threat actor named Menelik tried to sell a Dell database on the Breach Forums hacking forum on April 28th. The threat actor claimed to have stolen data from Dell for “49 million customers and other information systems purchased from Dell between 2017-2024.” While we haven’t been able to confirm if this is the same data that Dell disclosed, it matches the information listed in the data breach notification.

The post on Breach Forums has since been deleted, which could indicate that another threat actor purchased the database.

What does this mean for Dell customers?

Although Dell doesn’t believe there is significant risk to its customers given the type of information involved, the stolen information could potentially be used in targeted attacks against Dell customers. Without email addresses, threat actors might resort to targeting specific people with physical mailings containing phishing links or media (DVDs/thumb drives) to install malware on targets’ devices.

Think this sounds far-fetched? Well, similar attacks have happened in the past. For instance, tampered Ledger hardware wallets were physically mailed, which then stole cryptocurrency, or gifts with USB drives were sent that installed malware.

Since the database is no longer being sold, there’s a good chance a threat actor is trying to monetize it in some way through attacks. So, what can you do to protect yourself?

Stay vigilant and be cautious

Be wary of any physical mailings or emails you receive that claim to be from Dell, asking you to install software, change passwords, or perform some other potentially risky action. If you receive any suspicious communication, contact Dell directly to confirm its legitimacy.

Remember, knowledge is power, and staying informed about cybersecurity threats is essential to protecting yourself and your information. Don’t hesitate to contact us for more information and resources on cybersecurity, and keep coming back to learn more.

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